Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
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- Biota
- Kingdom Animalia
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Phylum Aphelida accepted as Aphelidiomycota
- Phylum Aphelidiomycota
- Phylum Ascomycota
- Class Archaeorhizomycetes
- Class Arthoniomycetes
- Class Ascomycetes
- Class Ascomycota incertae sedis
- Order Ascomycota incertae sedis
- Family Ascomycota incertae sedis
- Genus Abaphospora Kirschstein, 1939 accepted as Strickeria Körber, 1865
- Genus Abropelta B.C. Sutton, 1986
- Genus Abyssomyces J. Kohlmeyer, 1970
- Genus Acanthoderma H. Sydow & P. Sydow, 1917
- Genus Acarellina A.C. Batista & H. Maia, 1960
- Genus Acaroconium Kocourková & D. Hawksworth, 2008
- Genus Acarocybe H. Sydow, 1937
- Genus Acarocybella M.B. Ellis, 1960
- Genus Acarocybellina C.V. Subramanian, 1992
- Genus Acarocybiopsis J. Mena, A. Hernández-Gutiérrez & Mercado, 1999
- Genus Acaropeltis Petrak in H. Sydow & Petrak, 1937
- Genus Achitonium Kunze, 1819 accepted as Pactilia E.M. Fries, 1837
- Genus Achoropeltis H. Sydow in H. Sydow & Petrak, 1929
- Genus Aciculariella Arnaud, 1954
- Genus Acinula E.M. Fries, 1822
- Genus Acontium A.P. Morgan, 1902
- Genus Acremoniella P.A. Saccardo, 1886
- Genus Acremoniula G. Arnaud ex Ciferri, 1962
- Genus Acrocylindrium Bonorden, 1851
- Genus Acrodictiella R.K. Verma, N. Sharma & K.K. Soni, 2008
- Genus Acrodictyella W.A. Baker & E.C. Partridge in E.C. Partridge et al., 2001
- Genus Acrodictyopsis P.M. Kirk, 1983
- Genus Acrodictys M.B. Ellis, 1961
- Genus Acrodontiella U. Braun & C. Scheuer, 1995
- Genus Acrodontium G.S. de Hoog, 1972
- Genus Acrophialophora J.C. Edward, 1961
- Genus Acrophragmis E. Kiffer & O. Reisinger, 1970
- Genus Acrospeira M.J. Berkeley & C.E. Broome, 1857
- Genus Acrospira Montagne, 1857
- Genus Acrosporium Bonorden, 1851
- Genus Acrostaurus F.C. Deighton & K.A. Pirozynski, 1972
- Genus Acrotheciella Koorders, 1907
- Genus Acrothecium (Corda) G.T. Preuss, 1851
- Genus Actinochaete Ferro, 1907
- Genus Actinocladium C.G. Ehrenberg, 1819
- Genus Actinodochium H. Sydow, 1927
- Genus Actinonema C.H. Persoon, 1822
- Genus Actinotexis J.A. von Arx, 1960
- Genus Actinothecium Cesati in Rabenhorst, 1854
- Genus Actinothyrella Edward, Kr.P. Singh, S.C. Tripathi, M.K. Sinha & Ranade, 1974
- Genus Actinothyrium Kunze in Kunze & Schmidt, 1823
- Genus Actinotrichum Wallroth
- Genus Acumispora T. Matsushima, 1980
- Genus Adella Petrak, 1936 accepted as Wojnowicia P.A. Saccardo in P.A. Saccardo & P. Sydow, 1899
- Genus Adhogamina C.V. Subramanian & B.C. Lodha, 1964 accepted as Gilmaniella G.L. Barron, 1964
- Genus Aegeritella S. Balazy & J. Wisniewski, 1974
- Genus Aegeritoidea
- Genus Aenigmatospora R.F. Castañeda Ruiz, Saikawa, Guarro & Calduch, 1999
- Genus Aerophyton Eschweiler, 1824
- Genus Agaricodochium X. Liu in X. Liu et al., 1981
- Genus Agarwalia D.P. Tiwari & P.D. Agrawal, 1974
- Genus Agarwalomyces R.K. Verma & Kamal, 1987
- Genus Aglaocephalum W. Weston, 1933 accepted as Pulchromyces G.L. Hennebert, 1973
- Genus Agrabeeja C.V. Subramanian, 1995
- Genus Agyriella P.A. Saccardo, 1884
- Genus Agyriellopsis F. von Höhnel, 1903
- Genus Ahmadia H. Sydow, 1939
- Genus Ajrekarella M.N. Kamat & I.K. Kalani, 1964
- Genus Alatosessilispora K. Ando & K. Tubaki, 1984
- Genus Albophoma T. Kobayashi, R. Masuma, S. Omura & K. Watanabe, 1994
- Genus Alciphila H. Harmaja, 2002
- Genus Aleurodomyces P. Buchner, 1912
- Genus Algonquinia R.F. Castañeda Ruiz & W.B. Kendrick, 1991
- Genus Allantophoma H. Klebahn, 1933
- Genus Allonema H. Sydow, 1934
- Genus Alloneottiosporina T.R. Nag Raj, 1993
- Genus Allothyriella Batista, Ciferri & Nascimento, 1959
- Genus Allothyrina Batista & Bezerra in Batista, Bezerra & Maia, 1964
- Genus Allothyriopsis Batista, Ciferri & H. Maia, 1959
- Genus Alpakesa C.V. Subramanian & K. Ramakrishnan, 1954
- Genus Alpakesiopsis B.A. Abbas, B.C. Sutton, A. Ghaffar & A. Abbas, 2003
- Genus Alveariospora M. da Silva, R.F. Castañeda-Ruíz, O.L. Pereira & R.W. Barreto, 2012
- Genus Alveophoma Bausá Alcalde, 1952
- Genus Alysia Cavalcante & Silva in Cavalcante et al., 1972 accepted as Vouauxiella F. Petrak & H. Sydow, 1927
- Genus Alysidiella Crous, 2006
- Genus Alysidiopsis B.C. Sutton, 1973
- Genus Alysisporium Peyronel, 1922 accepted as Phragmotrichum G. Kunze, 1823
- Genus Amallospora Penzig, 1897
- Genus Amastigis F.E. Clements & Shear, 1931 accepted as Mastigosporium Riess in Fresenius, 1852
- Genus Amastigosporium Bondarzeva-Monteverde, 1921 accepted as Mastigosporium Riess in Fresenius, 1852
- Genus Amblyosporium Fresenius, 1863
- Genus Ambrosiaemyces Trotter, 1934
- Genus Ameliella A.M. Fryday & B.J. Coppins, 2008
- Genus Ameroconium U. Braun & M.O. Zhurbenko in Zhurbenko & Braun, 2013
- Genus Amerodiscosiella M.L. Farr, 1961
- Genus Amerodiscosiellina Batista & Cavalcanti, 1966
- Genus Ameromassaria K. Hara, 1918
- Genus Amerosporiella F. von Höhnel, 1916
- Genus Amerosporiopsis Petrak, 1941
- Genus Amerosporis F.E. Clements & Shear, 1931 accepted as Amerosporiella F. von Höhnel, 1916
- Genus Amerosympodula T. Matsushima, 1996
- Genus Amoenodochium F. Peláez & R.F. Castañeda Ruiz, 1996
- Genus Amoenomyces R.F. Castañeda, M. Saikawa & G.L. Hennebert, 1996
- Genus Amphichaete H. Klebahn, 1914 accepted as Amphichaetella F. von Höhnel, 1916
- Genus Amphichaetella F. von Höhnel, 1916
- Genus Amphiciliella F. von Höhnel, 1919
- Genus Amphisphaerellula Gucevic, 1952
- Genus Amphisphaerina F. von Höhnel, 1919
- Genus Amphitrichum T.F.L. Nees, 1818
- Genus Amphophialis R.F. Castañeda Ruiz, W.B. Kendrick & J. Guarro, 1998
- Genus Amphoropycnium Batista in Batista & Ciferri, 1963
- Genus Amphorulopsis Petrak, 1959
- Genus Amplistroma S.M. Huhndorf, A.N. Miller, M. Greif & G.J. Samuels, 2009
- Genus Ampullicephala R.F. Castañeda Ruiz, D.W. Minter & M. Stadler, 2009
- Genus Ampullifera Deighton, 1960
- Genus Ampulliferella Batista & Cavalcanti, 1964 accepted as Ampullifera Deighton, 1960
- Genus Ampulliferina B.C. Sutton, 1969
- Genus Ampulliferinites R.M. Kalgutkar & L. Sigler, 1995 †
- Genus Ampulliferopsis A.C. Batista & W.A. Cavalcante, 1964 accepted as Ampullifera Deighton, 1960
- Genus Amylis Spegazzini, 1922
- Genus Anaphysmene Bubák, 1906
- Genus Anarhyma M.-H. Pei & Z.-W. Yuan, 1986
- Genus Anaselenosporella G.P. Heredia, R.F. Castañeda & R.M. Arias, 2010
- Genus Anaseptoidium R.F. Castañeda-Ruiz, G.A. Heredia & R.M. Arias-Mota in Castañeda-Ruíz, Heredia, Arias-Mota, Stadler, Saikawa & McKenzie, 2012
- Genus Ancoraspora Mig. Rodríguez, 1982
- Genus Ancorasporella J. Mena Portales, A. Mercado Sierra & G. Heredia, 1998 accepted as Ancorasporella J. Mena Portales, A. Mercado Sierra & G. Heredia, 2017
- Genus Ancorasporella J. Mena Portales, A. Mercado Sierra & G. Heredia, 2017
- Genus Andreaea B.T. Palm & S.C.J. Jochems, 1923 accepted as Andreaeana B.T. Palm & S.C.J. Jochems, 1924
- Genus Andreaeana B.T. Palm & S.C.J. Jochems, 1924
- Genus Angiopomopsis F. von Höhnel, 1912
- Genus Angulospora S. Nilsson, 1962
- Genus Annellodentimyces Matsushima, 1985
- Genus Annellodochium F.C. Deighton, 1969
- Genus Annellolacinia B.C. Sutton, 1964
- Genus Annellophora S.J. Hughes, 1952
- Genus Annellophorella Subramanian, 1962
- Genus Annellophragmia C.V. Subramanian, 1963
- Genus Annellospermosporella P.R. Johnston, 1999
- Genus Annellosympodia A.R. McTaggart, R.G. Shivas & U. Braun, 2007
- Genus Anodotrichum (Corda) Rabenhorst, 1844 accepted as Blastotrichum Corda, 1838
- Genus Anomomyces F. von Höhnel in Weese, 1928
- Genus Antennopsis R. Heim, 1952
- Genus Anthina E.M. Fries, 1832
- Genus Anthoblastomyces Verona & Zardetta, 1954
- Genus Anthopsis V. Filipello Marchisio, A. Fontana & A.M. Luppi Mosca, 1977
- Genus Anthostomaria (P.A. Saccardo) Theissen & H. Sydow, 1918
- Genus Anthostomellina L.A. Kantshaveli, 1928
- Genus Anthracoderma Spegazzini, 1888
- Genus Antimanoa H. Sydow, 1930
- Genus Antromyces Fresenius, 1850
- Genus Anulohypha Ciferri, 1962
- Genus Aoria Ciferri, 1962
- Genus Aphanofalx B.C. Sutton, 1986
- Genus Apharia Bonorden, 1864
- Genus Apiocarpella H. Sydow & P. Sydow, 1919
- Genus Apiosporella Spegazzini, 1910 accepted as Apiocarpella H. Sydow & P. Sydow, 1919
- Genus Apiotypa Petrak, 1925
- Genus Apocoryneum B.C. Sutton, 1975 accepted as Massariothea H. Sydow, 1939
- Genus Apocytospora F. von Höhnel, 1924 accepted as Plectophomella Moesz, 1922
- Genus Apogloeum Petrak, 1954
- Genus Aporella H. Sydow, 1939 accepted as Aporellula B.C. Sutton, 1986
- Genus Aporellula B.C. Sutton, 1986
- Genus Aposphaeria M.J. Berkeley, 1860
- Genus Aposporella Thaxter, 1920
- Genus Appelia (P.A. Saccardo) Trotter, 1931 accepted as Trichoconis F.E. Clements, 1909
- Genus Arachnophora Hennebert, 1963
- Genus Arachnospora R.F. Castañeda, D.W. Minter & M. Camino-Vilaró in R.F. Castañeda Ruíz et al., 2003
- Genus Arborillus M. Muntañola-Cvetkovic & A. Gómez-Bolea, 1998
- Genus Arborispora K. Ando in K. Ando & I. Kawamoto, 1986
- Genus Arbuscula Batista & Peres, 1965 accepted as Neoarbuscula B.C. Sutton, 1983
- Genus Arbusculidium B.C. Sutton, 1982 accepted as Neoarbuscula B.C. Sutton, 1983
- Genus Arbusculina L. Marvanová & E. Descals, 1987
- Genus Arcuadendron L. Sigler & J.W. Carmichael, 1976
- Genus Argopericonia B.C. Sutton & I.G. Pascoe, 1987
- Genus Aristadiplodia M. Shirai in Numata, 1919
- Genus Aristastoma Tehon, 1933
- Genus Arnaudina A. Trotter in P.A. Saccardo, 1931
- Genus Arnoldiella R.F. Castañeda, 1984 accepted as Mycelephas R.F. Castañeda Ruiz in Gams, Seifert & Morgan-Jones, 2009
- Genus Arthopyreniomyces Ciferri & Tomaselli, 1953 accepted as Pyrenyllium Clements, 1909
- Genus Arthrobotryella Sibilia, 1928
- Genus Arthrobotryomyces A. Batista & J.L. Bezerra, 1961
- Genus Arthrobotryum O. Rostrup, 1916 accepted as Gonyella H. Sydow & P. Sydow, 1919
- Genus Arthrobotryum Cesati, 1854
- Genus Arthrocladium M.C. Papendorf, 1969
- Genus Arthrocristula L. Sigler, M.T. Dunn & J.W. Carmichael, 1982
- Genus Arthrographium Cesati, 1854 accepted as Arthrobotryum Cesati, 1854
- Genus Arthrosporium P.A. Saccardo, 1880
- Genus Arthrowallemia R.F. Castañeda Ruiz, D. García & J. Guarro, 1998
- Genus Articularia F. von Höhnel, 1909
- Genus Articulophora C.J.K. Wang & B.C. Sutton, 1982
- Genus Asbolisia Spegazzini, 1918
- Genus Asbolisiomyces Batista & H. da Silva Maia, 1961
- Genus Ascochytopsis Hennings, 1905
- Genus Ascochytulina Petrak, 1922
- Genus Ascocorticiellum W. Jülich & B. de Vries, 1982
- Genus Ascomauritiana V.M. Ranghoo & K.D. Hyde, 1999
- Genus Ascorhiza Lechtova-Trnka, 1931
- Genus Ascosorus P. Hennings & Ruhland, 1900
- Genus Ascospora Montagne, 1849
- Genus Ascoxyta Libert, 1830
- Genus Ashtaangam C.V. Subramanian, 1995
- Genus Aspergillopsis Sopp, 1912
- Genus Asperisporium Maublanc, 1913
- Genus Aspilaima A.C. Batista & H. Maia, 1961
- Genus Assoa Urríes, 1944
- Genus Astelechia R. Ciferri, 1962
- Genus Asterinothyriella Batista & Ciferri, 1959
- Genus Asterinothyrium A.C. Batista, R. Ciferri & H.S. Maia in A.C. Batista & R. Ciferri, 1951
- Genus Asterinula J.B. Ellis & Everhart, 1889 accepted as Leptothyrella P.A. Saccardo, 1885
- Genus Asteroconium H. Sydow & P. Sydow, 1903
- Genus Asteroglobolus W. von Brackel, 2011
- Genus Asteroglobulus W. von Brackel, 2011 accepted as Asteroglobolus W. von Brackel, 2011
- Genus Asteromidium Spegazzini, 1888
- Genus Asteromyces Moreau & M. Moreau ex Hennebert, 1962
- Genus Asteromyces Moreau, 1941
- Genus Asteronectrioidea Cantournet, 1949
- Genus Asteropsis Gonz. Fragoso, 1917
- Genus Asteroscutula Petrak, 1948
- Genus Asterosporium Kunze, 1819
- Genus Asterostomidium Lindau, 1900 accepted as Asteromidium Spegazzini, 1888
- Genus Asterostomopora A.C. Batista & H. Maia, 1960
- Genus Asterostomopsis A.C. Batista, R. Ciferri & H.S. Maia in A.C. Batista & R. Ciferri, 1951
- Genus Asterostomula F. Theissen, 1916
- Genus Asterostomulina A.C. Batista, J.L. Bezerra & H.S. Maia, 1964
- Genus Asterothyrium Hennings, 1904 accepted as Septothyrella F. von Höhnel, 1911
- Genus Astomella Thirumalachar, 1947
- Genus Astrabomyces A. Batista, 1961
- Genus Astrodochium J.B. Ellis & Everhart, 1897
- Genus Astronatelia A.C. Batista & H. Maia, 1962
- Genus Ateleothylax M. Ota & M. Langeron, 1923
- Genus Atractilina Dearness & Bartholomew, 1924
- Genus Atractina F. von Höhnel, 1904 accepted as Sterigmatobotrys Oudemans, 1886
- Genus Atractium Link, 1809
- Genus Atractobolus Tode ex Palisot de Beauvois in F. Cuvier, 1805
- Genus Atrosetaphiale T. Matsushima, 1995
- Genus Auerswaldiopsis Hennings, 1904 accepted as Patouillardiella Spegazzini, 1889
- Genus Aulographopsis Petrak, 1938
- Genus Aulospora Spegazzini, 1909
- Genus Aurantiosacculus B.J. Dyko & B.C. Sutton in B.J. Dyko et al., 1979
- Genus Aurosphaeria S.J. Lee, S.A. Strobel, K. Eisenman, B. Geary, P.N. Vargas & S.A. Strobel, 2009
- Genus Avesicladiella W.P. Wu, B.C. Sutton & A.C. Gange, 1997
- Genus Avettaea F. Petrak & H. Sydow, 1927
- Genus Azbukinia Lar.N. Vassiljeva, 1989
- Genus Bachmanniomyces D.L. Hawksworth, 1981
- Genus Bacillopeltis Batista in Batista, Costa & Vital, 1957
- Genus Bactridium Kunze, 1817
- Genus Bactrodesmiastrum V. Holubová-Jechová, 1984
- Genus Bactrodesmiella M.B. Ellis, 1959
- Genus Bactropycnis F. von Höhnel, 1920 accepted as Coleophoma F. von Höhnel, 1907
- Genus Bactrosphaeria Penzig & Saccardo, 1897
- Genus Baculospora H. Zukal, 1887
- Genus Badarisama I.K. Kunwar, J.B. Manandhar & J.B. Sinclair, 1986
- Genus Bagyoaatgra
- Genus Bahuchashaka C.V. Subramanian, 1978
- Genus Bahugada K.A. Reddy & V.G. Rao, 1984
- Genus Bahukalasa C.V. Subramanian & K.V. Chandrashekara, 1979
- Genus Bahusaganda C.V. Subramanian in Subramanian & Srivastava, 1994
- Genus Bahusandhika C.V. Subramanian, 1956
- Genus Bainieria Arnaud, 1952
- Genus Bakerophoma Diedicke, 1916
- Genus Balaniopsis P.M. Kirk, 1985
- Genus Balanium Wallroth, 1833
- Genus Barbarosporina A. Kirulis, 1942
- Genus Barklayella P.A. Saccardo, 1892 accepted as Neobarclaya P.A. Saccardo in P.A. Saccardo & P. Sydow, 1899
- Genus Barnettella D. Rao & P.R. Rao, 1964
- Genus Bartheletia Arnaud, 1954
- Genus Basauxia C.V. Subramanian, 1995
- Genus Basididyma R. Ciferri, 1962
- Genus Basramyces S.K. Abdullah, M.A. Abdulkadder & R.D. Goos, 1989 accepted as Cumulospora I. Schmidt, 1985
- Genus Batistina E.P. Peres, 1961
- Genus Batistospora J.L. Bezerra & M.M.P. Herrera, 1964
- Genus Beauveriphora T. Matsushima, 1975
- Genus Beccopycnidium F.L. Stevens, 1930
- Genus Beejadwaya C.V. Subramanian, 1978
- Genus Belainopsis Batista & H. Maia, 1965
- Genus Belemnospora P.M. Kirk, 1981
- Genus Bellulicauda B.C. Sutton, 1967
- Genus Beltramono R. Dubey, A.K. Pandey & C. Manoharachary, 2011
- Genus Beltrania Penzig, 1882
- Genus Beltraniomyces Manoharachary, Agarwal & Rao, 2003
- Genus Beltraniopsis A.C. Batista & J.L. Bezerra, 1960
- Genus Benekea A.C. Batista & J.L. Bezerra, 1960 accepted as Geastrumia A.C. Batista in A.C. Batista, M.L. Farr & Bezerra, 1960
- Genus Beniowskia Raciborski, 1900
- Genus Benjaminia S. Ahmad, 1967
- Genus Benjpalia C.V. Subramanian & D.J. Bhat, 1989
- Genus Beverwykella K. Tubaki, 1975
- Genus Bhadradriella D. Nagaraju, I.K. Kunwar & C. Manoharachary in Nagaraju et al., 2011
- Genus Bhadradriomyces S. Kumar, C. Manoharachary & I.K. Kunwar, 2009
- Genus Bharatheeya D'Souza & Bhat, 2002
- Genus Bhargavaella S. Singh & K.S. Srivastava, 1980?
- Genus Bhatia W.A. Baker & G.A. Morgan-Jones in Gams, Seifert & Morgan-Jones, 2009
- Genus Biatoridium J. Lahm ex Körber, 1860
- Genus Bibanasiella R.F. Castañeda Ruiz & W.B. Kendrick, 1991
- Genus Biflagellospora T. Matsushima, 1975
- Genus Biflagellosporella T. Matsushima, 1993
- Genus Biflua J. Koch & E.B.G. Jones, 1989
- Genus Bilboque A.P. Viégas, 1960
- Genus Bilgramia K.S. Panwar, D.K. Purohit & J.S. Chouhan, 1974
- Genus Bimeris Petrak, 1949
- Genus Bioconiosporium A.C. Batista & J.L. Bezerra, 1964
- Genus Biophomopsis Petrak, 1931
- Genus Birsiomyces F. Schaarschmidt, 1966 †
- Genus Bispora Corda, 1837
- Genus Bisseomyces R.F. Castañeda, 1985
- Genus Bitunicostilbe M. Morelet, 1971
- Genus Bizozzeria Spegazzini, 1889
- Genus Bizzozeriella Spegazzini, 1888
- Genus Blarneya D.L. Hawksworth, B.J. Coppins & P.W. James, 1980
- Genus Blastocatena C.V. Subramanian & D.J. Bhat, 1989
- Genus Blastoconium Ciferri, 1931
- Genus Blastoderma B. Fischer & Brebeck, 1894
- Genus Blastodictys M.B. Ellis, 1976
- Genus Blastofusarioides T. Matsushima, 1996
- Genus Blastomyces Gilchrist & W.R. Stokes, 1898 accepted as Zymonema Beurmann & Gougerot, 1909
- Genus Blastomycoides Castellani, 1928 accepted as Zymonema Beurmann & Gougerot, 1909
- Genus Blastophorella Boedijn, 1937
- Genus Blastophorum Matsushima, 1971
- Genus Blastophragma C.V. Subramanian, 1995
- Genus Blastotrichum Corda, 1838
- Genus Blennoria Mougeot & E.M. Fries, 1825
- Genus Blennoriopsis Petrak, 1920
- Genus Blepharia (Persoon) Ainsworth & Bisby, 1943 accepted as Dematium Persoon, 1801
- Genus Blodgettia E.P. Wright, 1881 accepted as Blodgettia Harvey, 1858
- Genus Blodgettiomyces Feldmann, 1939
- Genus Bombardiastrum Patouillard, 1893
- Genus Bomplandiella Spegazzini, 1886
- Genus Bostrichonema Cesati, 1867
- Genus Botrydiella L. Badura, 1963 accepted as Staphylotrichum J. Meyer & Nicot, 1957
- Genus Botryocladium Preuss, 1851 accepted as Nematogonum Desmazières, 1834
- Genus Botryodeorsum T.P. Devi, N. Mathur, Chowdhry, Jasvir Singh & O. Prakash, 2006
- Genus Botryoderma M.C. Papendorf & H.P. Upadhyay, 1969
- Genus Botryodiplodina Dias & Sousa da Câmara, 1954
- Genus Botryogene H. Sydow & P. Sydow, 1917
- Genus Botryomonilia Goos & Pirozynski, 1975
- Genus Botryomyces Greco, 1916
- Genus Botryomyces G.S. de Hoog & C. Rubio, 1982 accepted as Ybotromyces Rulamort, 1986
- Genus Botryonipha Preuss, 1852
- Genus Botryophoma (P.A. Karsten) F. von Höhnel, 1916 accepted as Sclerodothiorella Diedicke, 1912
- Genus Botryosporium Corda in J. Sturm, 1831
- Genus Brachydesmiella G. Arnaud ex S.J. Hughes, 1961
- Genus Brachyhelicoon Arnaud, 1952
- Genus Brachysporiellina C.V. Subramanian & D.J. Bhat, 1989
- Genus Brachysporiopsis Yanna, W.H. Ho & K.D. Hyde, 2004
- Genus Brefeldiopycnis Petrak & Ciferri, 1932
- Genus Brenesiella H. Sydow, 1929
- Genus Bresadolina J. Rick, 1928
- Genus Brevicatenospora R.F. Castañeda, Minter & Saikawa, 2006
- Genus Briancoppinsia P. Diederich, D. Ertz, J.D. Lawrey & P. van den Boom, 2012
- Genus Briosia Cavara, 1888
- Genus Broomeola O. Kuntze, 1891
- Genus Brycekendrickia T.R. Nag Raj, 1973
- Genus Bulbilopycnis T. Matsushima, 1996
- Genus Bulbocatenospora R.F. Castañeda Ruiz & T. Iturriaga in R.F. Castañeda Ruiz et al., 2000
- Genus Bullaserpens A.C. Batista, J.L. Bezerra & W.A. Cavalcanti, 1965
- Genus Bullimyces A. Ferrer, A.N. Miller, C. Sarmiento & C.A. Shearer, 2012
- Genus Byssocladiella B. Gaillon, 1833 accepted as Byssocladium Link, 1815
- Genus Byssocladium Link, 1815
- Genus Byssophytum Montagne, 1848
- Genus Byssotheciella Petrak, 1923
- Genus Cacahualia A. Mercado & R.F. Castañeda, 1984 accepted as Arachnophora Hennebert, 1963
- Genus Caducirostrum E. Punithalingam & B.M. Spooner, 2012
- Genus Caenomyces E.W. Berry, 1916 †
- Genus Calcarispora L. Marvanová & P. Marvan, 1963
- Genus Calceispora T. Matsushima, 1975
- Genus Caleutypa Petrak, 1934
- Genus Callistospora Petrak, 1955
- Genus Callorites M. Fiore, 1932 †
- Genus Callosisperma Preuss, 1855
- Genus Calocline H. Sydow, 1939
- Genus Calogloeum H. Sydow, 1924 accepted as Fusamen (P.A. Saccardo) P.A. Karsten, 1890
- Genus Calongeomyces D. Hawksworth & J. Etayo, 2011
- Genus Calongia D. Hawksworth & J. Etayo, 2010 accepted as Calongeomyces D. Hawksworth & J. Etayo, 2011
- Genus Calosphaeriopsis Petrak, 1941
- Genus Camarographium Bubák, 1916
- Genus Camaropycnis E.K. Cash, 1945
- Genus Camarosporellum Tassi, 1902
- Genus Camarosporiopsis B.A. Abbas, B.C. Sutton & A. Ghaffar, 2000
- Genus Camarosporulum Tassi, 1902
- Genus Camposporidium A. Nawawi & A.J. Kuthubutheen, 1988
- Genus Camposporium Harkness, 1884
- Genus Camptomeris H. Sydow, 1927
- Genus Camptosporium Link, 1818
- Genus Campylospora Ranzoni, 1953
- Genus Canalisporium A. Nawawi & A.J. Kuthubutheen, 1989
- Genus Candelabrum Van Beverwijk, 1951
- Genus Candelosynnema K.D. Hyde & K.A. Seifert, 1992
- Genus Capillaria Persoon, 1822
- Genus Capitorostrum Batista in Batista & Maia, 1957
- Genus Capnogoniella Batista & Ciferri, 1963
- Genus Caproniella Berlese, 1896
- Genus Capsicumyces I.J. Gamundí, A.M. Arambarri & A.L. Giaiotti in I.J. Gamundí et al., 1979
- Genus Carmichaelia N.D. Sharma, 1980
- Genus Carnegieispora J. Etayo & F. Berger, 2009
- Genus Carnia Batista in Batista & Peres, 1960
- Genus Carrismyces R.F. Castañeda Ruiz & G. Heredia, 2000
- Genus Cashhickia T.N. Taylor, M. Krings, J. Galtier & N. Dotzler, 2012 †
- Genus Castanedaea W.A. Baker & Partridge, 2001
- Genus Catenella A.C. Batista & E.P. Peres, 1963
- Genus Catenocuneiphora Matsushima, 2003
- Genus Catenophora Luttrell, 1940
- Genus Catenophoropsis T.R. Nag Raj & W.B. Kendrick, 1988
- Genus Catenospegazzinia Subramanian, 1991
- Genus Catenosubulispora Matsushima, 1971
- Genus Catenosynnema Kodsueb, E.H.C. McKenzie, W.H. Ho, K.D. Hyde, P. Lumyong & S. Lumyong, 2007
- Genus Catenulaster Batista & C.A.A. Costa, 1959
- Genus Catenuloxyphium Batista, Nascimento & Ciferri, 1963
- Genus Catinopeltis Batista & C.A.A. Costa in Batista, Costa & Vital, 1957
- Genus Catinula Léveillé, 1848
- Genus Cecidiomyces U. Braun & M.P. Zhurbenko in Zhurbenko & Braun, 2012
- Genus Ceeveesubramaniomyces Pratibha, K.D. Hyde & Bhat, 2005
- Genus Cellulosporium C.H. Peck, 1879
- Genus Cephalodochium Bonorden, 1851
- Genus Cephaloedium Kunze, 1828 accepted as Exosporium Link in Willdenow, 1824
- Genus Cephalophorum Nees
- Genus Ceracea Cragin, 1885
- Genus Ceratocladium Corda, 1839
- Genus Ceratophorum P.A. Saccardo, 1880
- Genus Ceratopycnis F. von Höhnel, 1915
- Genus Ceratospermum P. Micheli, 1729
- Genus Ceratosporella F. von Höhnel, 1923
- Genus Cercosperma G. Arnaud ex B.C. Sutton & C.H. Hodges Jr., 1983
- Genus Cerotocystis
- Genus Cesatia Rabenhorst, 1850 accepted as Trullula Cesati, 1852
- Genus Ceuthosira Petrak, 1924
- Genus Ceuthosporella Petrak & H. Sydow, 1923
- Genus Ceuthosporella F. von Höhnel, 1929 accepted as Helhonia B.C. Sutton, 1980?
- Genus Chaetantromycopsis H.P. Upadhyay, W.A. Cavalcanti & A.A. Silva, 1986
- Genus Chaetasbolisia Spegazzini, 1918
- Genus Chaetendophragmia T. Matsushima, 1971
- Genus Chaetendophragmiopsis B.C. Sutton & C.S. Hodges, 1978
- Genus Chaethomites L. Pampaloni, 1902 †
- Genus Chaetoamphisphaeria K. Hara, 1918
- Genus Chaetobasidiella F. von Höhnel, 1918
- Genus Chaetobasis F.E. Clements & Shear, 1931 accepted as Chaetobasidiella F. von Höhnel, 1918
- Genus Chaetoblastophorum G. Morgan-Jones, 1977
- Genus Chaetoconidium H. Zukal, 1887
- Genus Chaetocytostroma Petrak, 1920
- Genus Chaetodiplis F.E. Clements in F.E. Clements & Shear, 1931
- Genus Chaetodiplodia P.A. Karsten, 1884
- Genus Chaetodiplodina Spegazzini, 1910
- Genus Chaetodiscula Bubák & Kabát, 1910 accepted as Hymenopsis P.A. Saccardo, 1886
- Genus Chaetodochis F.E. Clements, 1909 accepted as Chaetostroma Corda in J. Sturm, 1829
- Genus Chaetopeltaster K. Katumoto, 1975
- Genus Chaetopeltiopsis K. Hara, 1913
- Genus Chaetopeltis P.A. Saccardo in Tassi, 1898 accepted as Tassia H. Sydow & P. Sydow, 1919
- Genus Chaetophiophoma Spegazzini, 1910
- Genus Chaetophoma M.C. Cooke, 1878
- Genus Chaetophomella Spegazzini, 1918
- Genus Chaetopsella F. von Höhnel in Weese, 1930 accepted as Chaetopsis Greville, 1825
- Genus Chaetopsis Greville, 1825
- Genus Chaetopyrena Passerini in De Notaris, 1881
- Genus Chaetosclerophoma Petrak, 1924
- Genus Chaetoseptoria Tehon, 1937
- Genus Chaetospermella H.A. Naumov, 1929 accepted as Chaetospermum P.A. Saccardo, 1892
- Genus Chaetospermella C.E. Chardon & R.A. Toro, 1934 accepted as Spermochaetella Ciferri, 1954
- Genus Chaetospermopsis K. Katumoto & Y. Harada, 1979
- Genus Chaetospermum P.A. Saccardo, 1892
- Genus Chaetosphaeronema Moesz, 1915
- Genus Chaetospora L. Faurel & G. Schotter, 1965 accepted as Neochaetospora B.C. Sutton & K.V. Sankaran, 1991
- Genus Chaetostroma Corda in J. Sturm, 1829
- Genus Chaetostromella P.A. Karsten, 1895
- Genus Chaetothyriolum Spegazzini, 1919
- Genus Chaetotrichum H. Sydow, 1927 accepted as Annellophora S.J. Hughes, 1952
- Genus Chaetozythia P.A. Karsten, 1888
- Genus Chalarodendron C.J.K. Wang & B.C. Sutton, 1984
- Genus Chalarodes E.H.C. McKenzie, 1991
- Genus Chantransiopsis Thaxter, 1914
- Genus Characonidia Batista & Cavalcanti, 1965
- Genus Chardonia Ciferri in Chardon & Toro, 1930
- Genus Charomyces K.A. Seifert, 1987
- Genus Charrinia Viala & Ravaz, 1894
- Genus Chasakopama C. Manoharachary, G. Bagyanarayana, N.K. Rao & I.K. Kunwar, 2009
- Genus Cheilaria Libert, 1830
- Genus Cheiroconium F. von Höhnel, 1910 accepted as Sirothecium P.A. Karsten, 1887
- Genus Cheiroidea W.A. Baker & G.A. Morgan-Jones in Gams, Seifert & Morgan-Jones, 2009
- Genus Cheiromyceopsis Á. Mercado Sierra & J. Mena Portales, 1988
- Genus Cheiromyces Berkeley & M.A. Curtis, 1857
- Genus Cheiromycina B.C. Sutton in B.C. Sutton & L.-E. Muhr, 1986
- Genus Cheiropolyschema T. Matsushima, 1980
- Genus Cheirospora Mougeot & E.M. Fries, 1825
- Genus Chelisporium Spegazzini, 1910 accepted as Sirothecium P.A. Karsten, 1887
- Genus Chiastospora Riess in Fresenius, 1852
- Genus Chikaneea B.C. Sutton, 1973
- Genus Chiliospora A. Massalongo, 1860 accepted as Biatoridium J. Lahm ex Körber, 1860
- Genus Chionomyces F.C. Deighton & K.A. Pirozynski, 1972
- Genus Chithramia T.R. Nag Raj, 1988
- Genus Chlamydomyces Bainier, 1907
- Genus Chlamydopsis V. Holubová-Jechová & R.F. Castañeda, 1986
- Genus Chlamydorubra K.B. Deshpande & K.S. Deshpande, 1966
- Genus Chlamydospora R. Kar, B.D. Mandaokar & R.K. Kar, 2009 †
- Genus Choanatiara F. DiCosmo in T.R. Nag Raj & F. DiCosmo, 1984
- Genus Chondropodiola Petrak & Ciferri, 1932
- Genus Choreospora O. Constantinescu & R. Santesson, 1987
- Genus Christiaster O. Kuntze, 1891 accepted as Gonatobotryum P.A. Saccardo, 1880
- Genus Chromatium Link, 1824 accepted as Dematium Persoon, 1801
- Genus Chromosporium Corda in J. Sturm, 1829
- Genus Chroostroma Corda, 1837 accepted as Pactilia E.M. Fries, 1837
- Genus Chrysachne Ciferri, 1938
- Genus Chrysalidopsis R.L. Steyaert, 1961
- Genus Chryseidea S. Onofri in S. Onofri et al., 1981
- Genus Chuppia F.C. Deighton in F.C. Deighton & K.A. Pirozynski, 1965
- Genus Cicadocola Brain, 1923
- Genus Ciferria Fragoso in Fragoso & Ciferri, 1925
- Genus Ciferriella Petrak, 1930
- Genus Ciferrina Petrak in Petrak & Ciferri, 1932
- Genus Ciferriopeltis A.C. Batista & H. Maia, 1965
- Genus Ciliochora F. von Höhnel, 1919
- Genus Ciliofusospora Batista & J.L. Bezerra, 1963
- Genus Ciliophora Petrak in H. Sydow & Petrak, 1929
- Genus Ciliophorella Petrak, 1940
- Genus Ciliospora A. Zimmermann, 1902 accepted as Chaetospermum P.A. Saccardo, 1892
- Genus Ciliosporella Petrak, 1927
- Genus Circinoconiopsis A. Hernández Gutiérrez, 2013
- Genus Circinoconis Boedijn, 1942
- Genus Circinotrichum C.G.D. Nees, 1816
- Genus Cirrosporium S.J. Hughes, 1980
- Genus Cissococcomyces Brain, 1923
- Genus Civisubramaniania B.P.R. Vittal & M. Dorai, 1986
- Genus Cladobyssus Ritgen, 1831 accepted as Hypha Persoon, 1822
- Genus Cladoconidium R.J. Bandoni & K. Tubaki, 1985
- Genus Cladographium Peyronel, 1918
- Genus Cladoniicola P. Diederich, P. van den Boom & A. Aptroot, 2001
- Genus Cladosphaera Dumortier, 1822
- Genus Cladosporiella Deighton, 1965
- Genus Cladosporiopsis S.C. Ren & X.G. Zhang, 2010
- Genus Cladosporothrium K. Katumoto, 1984
- Genus Cladosporothyrium K. Katumoto, 1984 accepted as Zelopelta B.C. Sutton & R.D. Gaur, 1984
- Genus Clasteropycnis A.C. Batista & Cavalcante, 1963
- Genus Clathroconium R.A. Samson & H.C. Evans, 1982
- Genus Clathrosphaera Zalewski, 1888
- Genus Clathrotrichum Patouillard, 1921 accepted as Beniowskia Raciborski, 1900
- Genus Clauzadeomyces Diederich, 1994
- Genus Clavariana A. Nawawi in E. Descals, 1976
- Genus Clavisporum G.F. Sepúlveda, R.C. Pereira-Carvalho & J.C. Dianese, 2008
- Genus Clavularia P.A. Karsten, 1882 accepted as Cornucopiella F. von Höhnel, 1915
- Genus Cleistocystis Sousa da Câmara, 1931
- Genus Cleistophoma F. Petrak & H. Sydow, 1927
- Genus Cleistothelebolus D.W. Malloch & R.F. Cain, 1971
- Genus Clithramia Nag Raj, 1988
- Genus Clohesyomyces K.D. Hyde, 1993
- Genus Clypeoceriospora Sousa da Câmara, 1946
- Genus Clypeochorella Petrak, 1923
- Genus Clypeodiplodina F.L. Stevens, 1927 accepted as Ascochytulina Petrak, 1922
- Genus Clypeolum Spegazzini, 1881
- Genus Clypeopatella F. Petrak, 1942
- Genus Clypeophialophora Batista & Peres, 1962
- Genus Clypeopycnis Petrak, 1925
- Genus Clypeoseptoria F. Stevens & P.A. Young, 1925
- Genus Clypeosphaerulina Sousa da Câmara in da Câmara & Luz, 1939
- Genus Clypeostagonospora E. Punithalingam, 1981
- Genus Coccidophthora H. Sydow & P. Sydow, 1913
- Genus Coccogloeum Petrak, 1955
- Genus Coccularia Corda in J. Sturm, 1829
- Genus Codonmyces V. Calatayud & J. Etayo, 1999
- Genus Coelographium (P.A. Saccardo) E. Gäumann, 1920
- Genus Coelosporium Link in Willdenow, 1824
- Genus Colemaniella V. Agnihothrudu, 1974
- Genus Coleodictyospora Charles, 1929
- Genus Coleodictys F.E. Clements & Shear, 1931 accepted as Coleodictyospora Charles, 1929
- Genus Coleonaema F. von Höhnel in Weese, 1924 accepted as Coleophoma F. von Höhnel, 1907
- Genus Coleophoma F. von Höhnel, 1907
- Genus Coleoseptoria Petrak, 1940
- Genus Colispora L. Marvanová, 1988
- Genus Collacystis Kunze, 1827
- Genus Collarium Link, 1809
- Genus Collecephalus J.A. Spencer, 1972
- Genus Collema C.A. Browne, 1756
- Genus Collembolispora Marvanová & Pascoal, 2003
- Genus Colletoconis G.S. de Hoog & H.A. van der Aa in G.S. de Hoog, 1978
- Genus Colletosporium Link in Willdenow, 1824
- Genus Collodochium F. von Höhnel, 1902
- Genus Collonema W.B. Grove, 1886
- Genus Collostroma Petrak, 1947
- Genus Colpomella F. von Höhnel in Weese, 1926
- Genus Columnodomus Petrak, 1941
- Genus Columnophora Bubák & Vleugel, 1916
- Genus Columnothyrium Bubák, 1916
- Genus Comatospora K.A. Pirozynski & R.A. Shoemaker, 1971
- Genus Comocephalum H. Sydow, 1939
- Genus Condylospora A. Nawawi, 1976
- Genus Confertopeltis Tehon, 1933
- Genus Coniambigua J. Etayo & P. Diederich in F.J.A. Daniels et al., 1995
- Genus Conidiocarpus Woronichin, 1926
- Genus Conidioxyphium Batista & Ciferri, 1963 accepted as Conidiocarpus Woronichin, 1926
- Genus Conioscyphopsis T.K. Goh & K.D. Hyde, 1998
- Genus Coniosporiopsis Spegazzini, 1918
- Genus Coniotheciella Spegazzini, 1918 accepted as Coniothecium Corda in Sturm, 1833
- Genus Coniothecium Corda in Sturm, 1833
- Genus Coniothyriella Spegazzini, 1889
- Genus Coniothyriella Spegazzini, 1910 accepted as Coniothyrina H. Sydow, 1912
- Genus Coniothyrina H. Sydow, 1912
- Genus Coniothyris F.E. Clements, 1909 accepted as Coniothyrina H. Sydow, 1912
- Genus Coniozyma Crous, 2008
- Genus Conjunctospora S.-I. Udagawa & S. Uchiyama, 1999
- Genus Conostoma A.C. Batista & J.L. Bezerra, 1965 accepted as Conostomatium A.B. Doweld, 2013
- Genus Conostomatium A.B. Doweld, 2013
- Genus Consetiella Holubová-Jechová & Mercado, 1982
- Genus Cooksonomyces H.J. Swart & D.A. Griffiths, 1974
- Genus Copromyces N. Lundqvist, 1967
- Genus Coprotrichum Bonorden, 1851 accepted as Sporendonema Desmazières, 1827
- Genus Corallinopsis J. Lagarde, 1917
- Genus Corallodendron Junghuhn, 1838 accepted as Corallomyces E.M. Fries, 1849
- Genus Corallomorpha Opiz, 1856
- Genus Corallomyces E.M. Fries, 1849
- Genus Cordana Preuss, 1851
- Genus Coremiella Bubák & K. Krieger, 1912
- Genus Corethropsis Corda, 1839
- Genus Corethrostroma Klebahn, 1933
- Genus Cornucopiella F. von Höhnel, 1915
- Genus Cornutispora Pirozynski, 1973
- Genus Cornutostilbe K.A. Seifert, 1990
- Genus Coronium Bonorden, 1864
- Genus Corynecercospora V.K. Pal, M. Akhtar, N. Ahmad, Kamal & D.K. Agarwal, 2006
- Genus Coryneliella Hariot & P.A. Karsten, 1890
- Genus Corynesporella Munjal & H.S. Gill, 1961
- Genus Corynesporina Subramanian, 1994 accepted as Corynesporina Subramanian in Gams, Seifert & Morgan-Jones, 2009
- Genus Corynesporina Subramanian in Gams, Seifert & Morgan-Jones, 2009
- Genus Corynesporopsis P.M. Kirk, 1981
- Genus Corynodesmium Wallroth, 1828
- Genus Cosmariospora P.A. Saccardo, 1880
- Genus Costanetoa A.C. Batista & Bezerra in Batista & Ciferri, 1963
- Genus Coutourea Castagne, 1845
- Genus Craneomyces G. Morgan-Jones, R.C. Sinclair & A. Eicker, 1987
- Genus Cremasteria S.P. Meyers & R.T. Moore, 1960
- Genus Creodiplodina Petrak, 1957
- Genus Creonecte Petrak, 1949
- Genus Creoseptoria Petrak in Watzl, 1937
- Genus Creothyriella Batista & C.A.A. Costa, 1957
- Genus Cribropeltis Tehon, 1933
- Genus Crinigera I. Schmidt, 1969
- Genus Crinitospora B.C. Sutton & J.L. Alcorn, 1985
- Genus Cristidium R. Santesson, 1952
- Genus Cristula Chenantais, 1920
- Genus Crucellisporiopsis T.R. Nag Raj, 1983
- Genus Crucellisporium M.L. Farr in Farr & Horner, 1968
- Genus Crustodiplodina E. Punithalingam, 1988
- Genus Cryptoascus Petri, 1909
- Genus Cryptoceuthospora Petrak, 1921
- Genus Cryptocoryneopsis B.C. Sutton, 1980
- Genus Cryptocoryneum Fuckel, 1870
- Genus Cryptogene H. Sydow, 1939 accepted as Ascochytopsis Hennings, 1905
- Genus Cryptogenella H. Sydow, 1939 accepted as Ascochytopsis Hennings, 1905
- Genus Cryptomela P.A. Saccardo, 1884 accepted as Cryptosporium G. Kunze, 1817
- Genus Cryptomycella F. von Höhnel, 1925
- Genus Cryptomycina F. von Höhnel, 1917
- Genus Cryptosporium G. Kunze, 1817
- Genus Cryptostroma P.H. Gregory & S. Waller, 1952
- Genus Cryptumbellata S.-I. Udagawa & S. Uchiyama, 1999
- Genus Ctenosporium R. Kirschner, 2006
- Genus Cubasina R.F. Castañeda Ruiz, 1986
- Genus Cucurbitariaceites R.K. Kar, R.Y. Singh & S.C.D. Sah, 1972 †
- Genus Cucurbitopsis Batista & Ciferri, 1957
- Genus Culicidospora R.H. Petersen, 1960
- Genus Culicinomyces J.N. Couch, S.V. Romney & B. Rao, 1974
- Genus Cumulospora I. Schmidt, 1985
- Genus Curculiospora Arnaud, 1954
- Genus Curucispora T. Matsushima, 1981
- Genus Curvidigitus Sawada, 1943
- Genus Curvulariopsis M.B. Ellis, 1961
- Genus Cuspidosporium R. Ciferri, 1955 accepted as Exosporium Link in Willdenow, 1824
- Genus Cuticularia Ducomet, 1907
- Genus Cyanopatella Petrak, 1949
- Genus Cyclomarsonina Petrak, 1965
- Genus Cylindrocarpostylus R. Kirschner & F. Oberwinkler, 1999
- Genus Cylindrogloeum Petrak, 1941
- Genus Cylindromyces C. Manoharachary, D.K. Agarwal & N.K. Rao, 2004
- Genus Cylindronema Schulzer, 1866
- Genus Cylindrophoma (Berlese & Voglino) von Höhnel, 1925
- Genus Cylindrophora Bonorden, 1851
- Genus Cylindrotheca Bonorden, 1864
- Genus Cylindrothyrium R. Maire, 1907
- Genus Cylindroxyphium A.C. Batista & R. Ciferri, 1963
- Genus Cylomyces F.E. Clements in F.E. Clements & Shear, 1931 accepted as Listeromyces Penzig & P.A. Saccardo, 1901
- Genus Cymbothyrium Petrak, 1947
- Genus Cyphina P.A. Saccardo, 1884 accepted as Sarcopodium Ehrenberg ex A.T. Brongniart in F. Cuvier, 1824
- Genus Cyrtocnon Link ex Reichenbach, 1828
- Genus Cystidiella Malan, 1943
- Genus Cystophora Rabenhorst, 1844 accepted as Voglinoana O. Kuntze, 1891
- Genus Cystothyrium Spegazzini, 1888
- Genus Cystotrichiopsis B.A. Abbas, B.C. Sutton & A. Ghaffar, 2001
- Genus Cytispora E.M. Fries, 1823
- Genus Cytodiscula Petrak, 1931
- Genus Cytogloeum Petrak, 1925
- Genus Cytonaema F. von Höhnel, 1914
- Genus Cytoplacosphaeria Petrak, 1920
- Genus Cytopleastrum B.A. Abbas, B.C. Sutton, A. Ghaffar & Abbas, 2004
- Genus Cytosphaera Diedicke in H. Sydow, P. Sydow & E.J. Butler, 1916
- Genus Cytosporella P.A. Saccardo, 1884
- Genus Cytosporina P.A. Saccardo, 1884 accepted as Dumortieria Westendorp, 1857
- Genus Cytosporium P.A. Saccardo, 1884 accepted as Cellulosporium C.H. Peck, 1879
- Genus Cytostaganis Clements & Shear, 1931 accepted as Cytostagonospora Bubák, 1916
- Genus Cytostagonospora Bubák, 1916
- Genus Cytotriplospora Bayl. Elliott & H.C. Chance, 1921 accepted as Strasseria G. Bresadola & P.A. Saccardo, 1902
- Genus Dacrydium Link, 1809
- Genus Dacrymycella Bizzozero, 1885
- Genus Dactylifera J.L. Alcorn, 1987
- Genus Dactylina G. Arnaud ex Subramanian, 1964 accepted as Lactydina C.V. Subramanian, 1978
- Genus Dactylosporium C.O. Harz, 1872
- Genus Damnosporium Corda, 1842 accepted as Bactridium Kunze, 1817
- Genus Danaea G. Caneva & A. Rambelli, 1981 accepted as Kiliophora A.J. Kuthubutheen & A. Nawawi, 1993
- Genus Danaëa G. Caneva & A. Rambelli, 1981 represented as Danaea G. Caneva & A. Rambelli, 1981
- Genus Darwiniella Spegazzini, 1887
- Genus Dasysphaeria Spegazzini, 1912
- Genus Dasysticta Spegazzini, 1912
- Genus Dasystictella F. von Höhnel, 1919
- Genus Davisiella Petrak, 1924
- Genus Dearnessia Bubák, 1916
- Genus Deichmannia V. Alstrup & D.L. Hawksworth, 1990
- Genus Deightonia Petrak, 1947 accepted as Vanderystiella P. Hennings, 1908
- Genus Delortia Patouillard & Gaillard, 1888
- Genus Delpinoella P.A. Saccardo, 1899
- Genus Dematium Persoon, 1801
- Genus Dendrina E.M. Fries, 1825
- Genus Dendroclathra Voglmayr & Delgado-Rodríguez, 2001
- Genus Dendrodomus Bubák, 1915
- Genus Dendrographiella V. Agnihothrudu, 1972
- Genus Dendrographium Massee, 1892
- Genus Dendroseptoria Bausá Alcalde, 1948
- Genus Dendrospora Ingold, 1943
- Genus Dendrosporium Plakidas & Edgerton ex J.L. Crane, 1972
- Genus Dendrosporium Plakidas & Edgerton, 1936
- Genus Dendrostilbe Dearness, 1924
- Genus Dendryphiosphaera D. Lunghini & A. Rambelli, 1978
- Genus Dennisographium M.A. Rifai, 1977
- Genus Denticularia F.C. Deighton, 1972
- Genus Dentocircinomyces R.F. Castañeda Ruiz & W.B. Kendrick, 1990
- Genus Dephilippia Rambelli, 1959 accepted as Circinotrichum C.G.D. Nees, 1816
- Genus Derexia Narasimhan, 1970
- Genus Dermatoidium Stautz
- Genus Descalsia A. Roldán & M. Honrubia, 1989
- Genus Desertella J. Mouchacca, 1979
- Genus Desmazierella M.L. Crié, 1878
- Genus Desmidiospora Thaxter, 1891
- Genus Dexhowardia J.J. Taylor, 1970
- Genus Diaboliumbilicus I. Hino & Katumoto, 1955
- Genus Diacrochordon Petrak, 1955
- Genus Diademospora B. Söderström & E. Bååth, 1979
- Genus Dialaceniopsis A.C. Batista, 1959
- Genus Diaphanium E.M. Fries, 1836
- Genus Dicellispora Sawada, 1944
- Genus Dichelostroma Batista & Peres, 1963
- Genus Dicholobodigitus G.P. White & W.I. Illman, 1988
- Genus Dichotomophthora Mehrlich & Fitzpatrick ex P.N. Rao, 1966
- Genus Dichotomophthora Mehrlich & Fitzpatrick, 1935
- Genus Dichotomophthoropsis M.B. Ellis, 1971
- Genus Dichotophora S.R. Whitton, K.D. Hyde & E.H.C. McKenzie in Whitton, McKenzie & Hyde, 2012
- Genus Dicoccum Corda, 1829
- Genus Dicranocladium Sousa da Câmara, 1931
- Genus Dictyoarthrinium S.J. Hughes, 1952
- Genus Dictyoarthrinopsis Batista & Ciferri, 1958
- Genus Dictyocatenulata D.E. Finley & E.F. Morris, 1967
- Genus Dictyochorina Chardón, 1932
- Genus Dictyodesmium S.J. Hughes, 1951
- Genus Dictyomykus R. Kar, B.D. Mandaokar & R.K. Kar, 2009 †
- Genus Dictyophrynella Batista & Cavalcante, 1964
- Genus Dictyopolyschema M.B. Ellis, 1976
- Genus Dictyorostrella U. Braun, 1999
- Genus Dictyospiropes M.B. Ellis, 1976
- Genus Didymochaeta P.A. Saccardo & J.B. Ellis, 1898
- Genus Didymochaetina A.C. Batista & J.L. Bezerra, 1965
- Genus Didymopsis Saccardo & Marchal, 1885
- Genus Didymosamarospora T.W. Johnson & H.S. Gold, 1957
- Genus Didymosphaerites M. Fiore, 1932 †
- Genus Didymosporiella Traverso & Migliardi, 1911
- Genus Didymosporina F. von Höhnel, 1916
- Genus Didymosporis F.E. Clements & Shear, 1931 accepted as Didymosporiella Traverso & Migliardi, 1911
- Genus Didymosporium C.G.D. Nees, 1816
- Genus Didymosporium Saccardo, 1880
- Genus Didymothozetia E. Rangel in A. Maublanc & E. Rangel, 1915
- Genus Didymotrichella Arnaud, 1954
- Genus Diedickea H. Sydow & P. Sydow, 1913
- Genus Digitella R.F. Castañeda-Ruiz, G. Heredia & R.M. Arias, 2013 accepted as Helensiella D.W. Minter, R.F. Castañeda-Ruiz & G. Heredia in Minter, 2015
- Genus Digitodochium K. Tubaki & T. Kubono, 1989
- Genus Digitomyces A. Mercado Sierra, M. Calduch & J. Gené in A. Mercado Sierra et al., 2003
- Genus Digitopodium U. Braun, B. Heuchert & K. Schubert, 2006
- Genus Digitoramispora R.F. Castañeda Ruiz & W.B. Kendrick, 1990
- Genus Dimastigosporium L. Faurel & G. Schotter, 1965
- Genus Dimorphomyces Omoifo, 1997
- Genus Dinemasporiella Spegazzini, 1910
- Genus Dinemasporis F.E. Clements & Shear, 1931 accepted as Dinemasporiella Spegazzini, 1910
- Genus Dionysia Arnaud, 1952 accepted as Candelabrum Van Beverwijk, 1951
- Genus Diplocladiella G. Arnaud ex M.B. Ellis, 1976
- Genus Diplodiella (P.A. Karsten) P.A. Saccardo, 1884
- Genus Diplodiella Petrak, 1953
- Genus Diplodinis F.E. Clements in F.E. Clements & Shear, 1931
- Genus Diplodinula Tassi, 1902
- Genus Diplodites Teterenikora-Babayan & Taslakhchian, 1970 † accepted as Diplodites Teterenikora-Babayan & Taslakhchian ex R.M. Kalgutkar, E.M.V. Nambudiri & W.D. Tidwell, 1993 †
- Genus Diplodites Teterenikora-Babayan & Taslakhchian ex R.M. Kalgutkar, E.M.V. Nambudiri & W.D. Tidwell, 1993 †
- Genus Diplolaeviopsis M. Giralt & D. Hawksworth, 1991
- Genus Diploospora W.B. Grove, 1916
- Genus Diploöspora Grove, 1916 represented as Diploospora W.B. Grove, 1916
- Genus Diplopeltis Passerini, 1889 accepted as Pycnoseynesia O. Kuntze, 1898
- Genus Diploplenodomus Diedicke, 1912
- Genus Diplorhynchus Arnaud, 1952
- Genus Diplosporonema F. von Höhnel, 1917
- Genus Diplozythia Bubák, 1904
- Genus Diplozythiella Diedicke in H. Sydow, P. Sydow & E.J. Butler, 1916
- Genus Dirimosperma Preuss, 1855
- Genus Discocolla Prillieux & Delacroix, 1894
- Genus Discogloeum Petrak, 1923
- Genus Discomycetoidea T. Matsushima, 1993
- Genus Discosiellina Subramanian & K.R.C. Reddy, 1972
- Genus Discosporina F. von Höhnel in Weese, 1927
- Genus Discosporium P.A. Saccardo & P. Sydow, 1902
- Genus Discostromella Petrak, 1924 accepted as Leptostromella (P.A. Saccardo) P.A. Saccardo, 1884
- Genus Discotheciella H. Sydow & P. Sydow, 1917
- Genus Discothecium H. Sydow & P. Sydow, 1916 accepted as Discotheciella H. Sydow & P. Sydow, 1917
- Genus Discozythia Petrak, 1922
- Genus Dissitimurus E.G. Simmons, M.R. McGinnis & M.G. Rinaldi, 1987
- Genus Dissoacremoniella Kirilenko, 1970
- Genus Ditangifibula G.C. Adams in G.C. Adams, K.L. Klomparens & P.E. Hennon, 1996
- Genus Dithozetia F.E. Clements & Shear, 1931 accepted as Didymothozetia E. Rangel in A. Maublanc & E. Rangel, 1915
- Genus Diversimorbus S.F. Chen & J. Roux in Chen, Wingfield & Roux, 2013
- Genus Divinia Ciferri, 1955
- Genus Dokmaia I. Promputtha et al., 2003
- Genus Domingoella Petrak & Ciferri, 1932
- Genus Dontuzia L.D. Gómez Pignataro, 1973
- Genus Dothideodiplodia K.E. Murashkinski in K.E. Murashkinski & M.K. Ziling, 1927
- Genus Dothiopsis P.A. Karsten, 1884
- Genus Dothiorellina Bubák, 1911
- Genus Dothioropsis H. Riedl, 1974
- Genus Drechsleromyces C.V. Subramanian, 1978
- Genus Drepanospora Berkeley & M.A. Curtis, 1875
- Genus Drudeola O. Kuntze, 1891
- Genus Drummondia A.C. Batista & H. Maia, 1963 accepted as Mycousteria M.L. Farr, 1986
- Genus Dryosphaera J. Koch & E.B.G. Jones, 1989
- Genus Dualomyces T. Matsushima, 1987
- Genus Dubiocarpon S.A. Hutchinson, 1955 †
- Genus Dumortieria Westendorp, 1857
- Genus Duosporium K.S. Thind & Rawla, 1961
- Genus Dwayabeeja C.V. Subramanian, 1958
- Genus Dwayaloma C.V. Subramanian, 1957
- Genus Dwayalomella J.D. Brisson, K.A. Pirozynski & J.F. Pauzé, 1975
- Genus Dwibahubeeja N. Srivastava, A.K. Srivastava & Kamal, 1995
- Genus Dwibeeja C.V. Subramanian, 1995
- Genus Dwiroopella C.V. Subramanian & J. Muthumary, 1986
- Genus Dyrithium M.E. Barr, 1994
- Genus Ebollia D.W. Minter & T.S. Caine, 1980
- Genus Echinochaetomium
- Genus Echinochondrium Samson & Van der Aa, 1975
- Genus Echinoconidiophorum R.C. Pereira-Carvalho & J.C. Dianese, 2009
- Genus Echinosporium Woronichin, 1913 accepted as Petrakia P. Sydow in H. Sydow & P. Sydow, 1913
- Genus Ectostroma E.M. Fries, 1849
- Genus Effetia A. Bartoli, O. Maggi & A.M. Persiani, 1984
- Genus Eiona J. Kohlmeyer, 1968
- Genus Elachopeltella Batista & Cavalcanti, 1964
- Genus Elachopeltis H. Sydow, 1927
- Genus Elaeodema H. Sydow, 1922
- Genus Elattopycnis Batista & Cavalcanti, 1964
- Genus Elegantimyces T.K. Goh, K.M. Tsui & K.D. Hyde, 1998
- Genus Eleutheris F.E. Clements & Shear, 1931 accepted as Eleutheromycella F. von Höhnel, 1908
- Genus Eleutheromycella F. von Höhnel, 1908
- Genus Ellisembiopsis T.S. Santa Izabel & L.F.P. Gusmão in Santa Izabel, Cruz & Gusmão, 2013
- Genus Ellisiella A.C. Batista, 1956
- Genus Elotespora R.F. Castañeda Ruiz & G.H. Abarca, 2010
- Genus Enantioptera E. Descals in E. Descals & J. Webster, 1983
- Genus Enantiothamnus Pinoy in Brault & Masselot, 1911
- Genus Endobotrya Berkeley & M.A. Curtis, 1874
- Genus Endobotryella F. von Höhnel, 1909
- Genus Endocalyx Berkeley & Broome, 1876
- Genus Endochaetophora J.F. White & T.N. Taylor, 1988 †
- Genus Endocladis F.E. Clements & Shear, 1931 accepted as Endoramularia Petrak, 1923
- Genus Endocolium H. Sydow, 1937
- Genus Endoconospora Gjaerum, 1971
- Genus Endocoryneum Petrak, 1922
- Genus Endodesmia M.J. Berkeley & C.E. Broome, 1871 accepted as Broomeola O. Kuntze, 1891
- Genus Endogenospora R.F. Castañeda Ruiz, O. Morillo & D.W. Minter, 2010
- Genus Endophlaea Cooke, 1888
- Genus Endophoma A. Tsuneda & M.L. Davey, 2011
- Genus Endophragmia Duvernoy & Maire, 1920 accepted as Phragmocephala E.W. Mason & S. Hughes, 1951
- Genus Endophragmiella B. Sutton, 1973
- Genus Endophragmiopsis M.B. Ellis, 1966
- Genus Endoplacodium Petrak, 1949
- Genus Endoramularia Petrak, 1923
- Genus Endosporoideus W.H. Ho, Yanna, K.D. Hyde & Goh, 2005
- Genus Endostilbum G. Malençon, 1964
- Genus Endotrichum Corda, 1838
- Genus Endozythia F. Petrak, 1959
- Genus Enerthidium H. Sydow, 1939
- Genus Engelhardtiella A. Funk, 1973
- Genus Enridescalsia R.F. Castañeda Ruiz & J. Guarro in R.F. Castañeda Ruiz et al., 1998
- Genus Enterobotryum Preuss, 1853
- Genus Enthallopycnidium F.L. Stevens, 1925
- Genus Entoderma Hanula, Andreadis & M. Blackwell, 1991
- Genus Entomopatella Petrak, 1927 accepted as Chaetospermum P.A. Saccardo, 1892
- Genus Entropezites Poinar & Buckley, 2007 †
- Genus Eoetvoesia Schulzer, 1866
- Genus Eomelanomyces C. Beimforde, H. Dörfelt & A.R. Schmidt in Beimforde, Schäfer, Dörfelt, Nascimbene, Singh, Heinrichs, Reitner, Rana & Schmidt, 2011 †
- Genus Epaphroconidia V. Calatayud & V. Atienza, 1995
- Genus Ephelidium Spegazzini, 1920
- Genus Ephelidium C.W. Dodge & E.D. Rudolph, 1955
- Genus Epicladonia D. Hawksworth, 1981
- Genus Epiclinium E.M. Fries, 1849
- Genus Epicoccospora U. Budathoki & S.K. Singh, 1995
- Genus Epidochiopsis P.A. Karsten, 1892
- Genus Epinectria H. Sydow & P. Sydow, 1917 accepted as Dinemasporiella Spegazzini, 1910
- Genus Episporogoniella U. Braun, 1994
- Genus Epistigme H. Sydow, 1924
- Genus Erebonema F.A. Roemer, 1845
- Genus Ericianella Brondeau, 1828 accepted as Bactridium Kunze, 1817
- Genus Eriomycopsis Spegazzini, 1910
- Genus Eriosporella F. von Höhnel, 1916
- Genus Eriosporina Tognini, 1894(?) accepted as Sirothecium P.A. Karsten, 1887
- Genus Eriosporopsis Petrak, 1947
- Genus Eriothyrium Spegazzini, 1888
- Genus Erispora Patouillard, 1922
- Genus Ernakulamia Subramanian, 1996
- Genus Erysiphopsis Spegazzini, 1910
- Genus Erythrogloeum Petrak, 1953
- Genus Esdipatilia C.H. Phadke, 1981
- Genus Esfandiaria Petrak, 1955 accepted as Esfandiariomyces D. Ershad, 1985
- Genus Esfandiariomyces D. Ershad, 1985
- Genus Esteya J.Y. Liou, J.Y. Shih & Tzean, 1999
- Genus Euhaplosporella Petrak & Sydow, 1926
- Genus Eulasmeniella Petrak & Sydow, 1927
- Genus Eurasina G.R.W. Arnold, 1970
- Genus Eurotiopsis P.A. Karsten, 1889
- Genus Eustegia E.M. Fries, 1823 accepted as Stegilla H.G.L. Reichenbach, 1829
- Genus Evanidomus Caballero, 1941
- Genus Everhartia P.A. Saccardo & J.B. Ellis, 1882
- Genus Everniicola D.L. Hawksworth, 1982
- Genus Eversia J.L. Crane & J.D. Schoknecht in J.D. Schoknecht & J.L. Crane, 1977
- Genus Evlachovaea Borisov & Tarasov, 1999
- Genus Excipularia P.A. Saccardo, 1884
- Genus Excipulariopsis P.M. Kirk & B.M. Spooner in B.M. Spooner & P.M. Kirk, 1982
- Genus Exochalara W. Gams & V. Holubová-Jechová, 1976
- Genus Exophoma Weedon, 1926
- Genus Exosporella F. von Höhnel, 1912
- Genus Exosporiella P. Karsten, 1892
- Genus Exosporina G. Arnaud, 1921 accepted as Arnaudina A. Trotter in P.A. Saccardo, 1931
- Genus Exosporinella Bender, 1932 accepted as Arnaudina A. Trotter in P.A. Saccardo, 1931
- Genus Exosporium Link in Willdenow, 1824
- Genus Fairmaniella F. Petrak & H. Sydow, 1927
- Genus Farriolla Norman, 1885
- Genus Farriollomyces Ciferri & Tomaselli, 1953 accepted as Farriolla Norman, 1885
- Genus Favomicrosporon T. Benedek, 1967
- Genus Favostroma B.C. Sutton & E.M. Davison, 1983
- Genus Feltgeniomyces P. Diederich, 1990
- Genus Fenestroconidia V. Calatayud & J. Etayo, 1999
- Genus Feracia Rolland, 1905
- Genus Fissuricella R.S. Pore, R.F. D'Amato & L. Ajello, 1977
- Genus Flabellocladia A. Nawawi, 1985
- Genus Flabellospora Alasoadura, 1968
- Genus Flahaultia Arnaud, 1952 accepted as Flahaultiella K.A. Seifert in Gams, Seifert & Morgan-Jones, 2009
- Genus Flahaultiella K.A. Seifert in Gams, Seifert & Morgan-Jones, 2009
- Genus Flavocetrariella D.D. Awasthi, 2007
- Genus Flosculomyces B.C. Sutton, 1978
- Genus Foveostroma F. DiCosmo, 1978
- Genus Fresenia Fuckel, 1866 accepted as Graphiothecium Fuckel, 1870
- Genus Frigidispora K.D. Hyde & T.K. Goh, 1999
- Genus Fuckelia Niessl, 1875
- Genus Fujimyces D.W. Minter & T.S. Caine, 1980
- Genus Fuligomyces G. Morgan-Jones & Kamal, 1984
- Genus Fumago Persoon, 1822
- Genus Fumagopsis Spegazzini, 1910 accepted as Tridentaria Preuss, 1852
- Genus Funicularius K.K. Baker & M. Zaim in M. Zaim et al., 1979
- Genus Furcaspora L. Bonar, 1965
- Genus Fusamen (P.A. Saccardo) P.A. Karsten, 1890
- Genus Fusariella P.A. Saccardo, 1884
- Genus Fusariopsis Parreiras Horta, 1919
- Genus Fuscophialis B.C. Sutton, 1977
- Genus Fusella P.A. Saccardo, 1886
- Genus Fusicatena K. Matsushima & T. Matsushima, 1996
- Genus Fusichalara S.J. Hughes & T.R. Nag Raj, 1973
- Genus Fusicladina Arnaud, 1952
- Genus Fusicolla Bonorden, 1851
- Genus Fusiconidium J.F. Li, R. Phookamsak & K.D. Hyde accepted as Camposporidium A. Nawawi & A.J. Kuthubutheen, 1988
- Genus Fusisporella Spegazzini, 1910
- Genus Fusoma Corda, 1837
- Genus Fusticeps J. Webster & R.A. Davey, 1980
- Genus Gaeumanniella Petrak, 1952
- Genus Galacatomyces
- Genus Gallaicolichen Sérusiaux & Lücking, 2007
- Genus Galloea V. Alstrup & U. Søchting, 2009 †
- Genus Gamosporella Spegazzini, 1888
- Genus Gampsonema T.R. Nag Raj, 1975
- Genus Gamsia M. Morelet, 1969
- Genus Gangliophora C.V. Subramanian, 1992
- Genus Gangliostilbe C.V. Subramanian & B.P.R. Vittal in B.P.R. Vittal, 1976?
- Genus Garnaudia A. Borowska, 1977
- Genus Gaubaea Petrak, 1942
- Genus Geastrumia A.C. Batista in A.C. Batista, M.L. Farr & Bezerra, 1960
- Genus Gelatinocrinis T. Matsushima, 1995
- Genus Gelatinopycnis B.J. Dyko & B.C. Sutton, 1979
- Genus Geleenites S.J. Dijkstra, 1949 †
- Genus Geminella J. Schröter, 1870 accepted as Schroeteria G. Winter, 1881
- Genus Geminoarcus K. Ando, 1993
- Genus Gemmophora Schkorbatow, 1912
- Genus Gemmulina E. Descals & L. Marvanová in E. Descals et al., 1999
- Genus Geniopila Marvanová & Descals, 1985
- Genus Geotrichella Arnaud, 1954
- Genus Gerulajacta Preuss, 1855
- Genus Gilchristia Redaelli & Ciferri, 1934 accepted as Zymonema Beurmann & Gougerot, 1909
- Genus Gilletia Torrend, 1914 accepted as Telligia Hendrickx, 1948
- Genus Gilmaniella G.L. Barron, 1964
- Genus Giulia F. Tassi, 1904
- Genus Glabrotheca Chardón, 1939
- Genus Glaphyriopsis B.C. Sutton & I.G. Pascoe, 1987
- Genus Glenosporopsis O.M. Fonseca, 1943
- Genus Glioannellodochium T. Matsushima, 1989
- Genus Glioblastocladium T. Matsushima, 1989
- Genus Gliocladochium F. von Höhnel, 1916 accepted as Periola E.M. Fries, 1822
- Genus Gliodendron A. Salonen & A.L. Ruokola, 1969 accepted as Sterigmatobotrys Oudemans, 1886
- Genus Gliophragma C.V. Subramanian & B.C. Lodha, 1964
- Genus Gliostroma Corda, 1837
- Genus Globoconidiopsis G.F. Sepúlveda, R.C. Pereira-Carvalho & J.C. Dianese, 2009
- Genus Globoconidium G.F. Sepúlveda, R.C. Pereira-Carvalho & J.C. Dianese, 2009
- Genus Globosopyreno Lloyd, 1923
- Genus Globuliroseum S.B. Sullia & K.R. Khan, 1984
- Genus Gloeocercospora D.C. Bain & C.W. Edgerton ex F.C. Deighton, 1971
- Genus Gloeocoryneum Weindlmayr, 1964
- Genus Gloeodes Colby, 1920
- Genus Gloeosporiella Cavara, 1892
- Genus Gloiosphaera F. von Höhnel, 1902
- Genus Glutinium E.M. Fries, 1849
- Genus Glycyphila Montagne, 1851
- Genus Godal Adanson, 1763
- Genus Goidanichiella G.L. Barron ex W. Gams in Gams, Steiman & Seigle-Murandi, 1990 accepted as Goidanichiella G.L. Barron ex W. Gams in Gams, Seifert & Morgan-Jones, 2009
- Genus Goidanichiella G. Arnaud ex G.L. Barron, 1968 accepted as Goidanichiella G.L. Barron ex W. Gams in Gams, Seifert & Morgan-Jones, 2009
- Genus Goidanichiella G.L. Barron ex W. Gams in Gams, Seifert & Morgan-Jones, 2009
- Genus Goidanichiella G. Arnaud, 1954 accepted as Goidanichiella G.L. Barron ex W. Gams in Gams, Seifert & Morgan-Jones, 2009
- Genus Gonatobotryum P.A. Saccardo, 1880
- Genus Gonatophragmiella R. Kumar, A.N. Rai & Kamal, 1994
- Genus Gonatopyricularia Z.D. Jiang & P.K. Chi, 1989 accepted as Pyriculariopsis M.B. Ellis, 1971
- Genus Gonatorhodis F.E. Clements & Shear, 1931 accepted as Gonatobotryum P.A. Saccardo, 1880
- Genus Gonatorrhodiella Thaxter, 1891 accepted as Gonatobotryum P.A. Saccardo, 1880
- Genus Gonatorrhodum Corda, 1839
- Genus Gonidiomyces E.A. Vainio, 1921
- Genus Goniopila L. Marvanová & E. Descales, 1985
- Genus Gonyella H. Sydow & P. Sydow, 1919
- Genus Goosiella G. Morgan-Jones, Kamal & R.K. Verma, 1986
- Genus Goosiomyces N.K. Rao & C. Manoharachary, 1989
- Genus Gordonomyces P.W. Crous & S. Marincowitz, 2011
- Genus Gorgomyces M. Gönczöl & A. Révay, 1985
- Genus Grallomyces F.L. Stevens, 1918
- Genus Granmamyces J. Mena & Mercado, 1988 accepted as Weufia D.J. Bhat & B.C. Sutton, 1985
- Genus Granularia P.A. Saccardo & J.B. Ellis ex P.A. Saccardo, 1882
- Genus Graphiopsis Bainier, 1907 accepted as Phaeoisaria F. von Höhnel, 1909
- Genus Graphiothecium Fuckel, 1870
- Genus Groveolopsis Boedijn, 1951
- Genus Guceviczia Z.I. Glezer, 1959 accepted as Wojnowicia P.A. Saccardo in P.A. Saccardo & P. Sydow, 1899
- Genus Guedea A. Rambelli & A. Bartoli, 1978
- Genus Gueguenia Bainier, 1907 accepted as Amblyosporium Fresenius, 1863
- Genus Gymnoascopsis C. Moreau & M. Moreau, 1959 accepted as Ascosorus P. Hennings & Ruhland, 1900
- Genus Gymnodochium Massee & E.S. Salmon, 1902
- Genus Gymnosporium A.J. Corda in J. Sturm, 1833
- Genus Gymnoxyphium R. Ciferri, A.C. Batista & Araujo in Batista & Ciferri, 1963
- Genus Gyrocerus Corda, 1837 accepted as Circinotrichum C.G.D. Nees, 1816
- Genus Gyrophthorus J. Hafellner & L.G. Sancho, 1990
- Genus Gyrothrix (Corda) Corda, 1842
- Genus Gyrotrichum K.P.J. Sprengel, 1827 accepted as Circinotrichum C.G.D. Nees, 1816
- Genus Habrostictis Clements, 1909
- Genus Hadronema H. Sydow & P. Sydow, 1909
- Genus Hadrosporium H. Sydow, 1938
- Genus Halysiomyces E.G. Simmons, 1981
- Genus Halysium Corda, 1837
- Genus Hanliniomyces H.A. Raja & C.A. Shearer, 2008
- Genus Hansfordia S.J. Hughes, 1951
- Genus Hansfordiopeltis Batista & C.A.A. Costa, 1956
- Genus Hansfordiopeltopsis M.L. Farr, 1986
- Genus Hansfordiula E.F. Morris, 1963 accepted as Phaeoisaria F. von Höhnel, 1909
- Genus Hapalosphaeria H. Sydow in Diedicke & H. Sydow, 1908
- Genus Haplariella P.A. Saccardo in Trotter & P.A. Saccardo, 1931 accepted as Haplariella H. Sydow & P. Sydow, 1908
- Genus Haplariella H. Sydow & P. Sydow, 1908
- Genus Haplariopsis Oudemans, 1903
- Genus Haplariopsis P.C. Hennings, 1908 accepted as Haplariella H. Sydow & P. Sydow, 1908
- Genus Haplobasidion Eriksson, 1889
- Genus Haplolepis H. Sydow, 1925
- Genus Haplosporidium Spegazzini, 1912
- Genus Haplosporium Montagne, 1843
- Genus Haplostromella von Höhnel, 1917 accepted as Strasseria G. Bresadola & P.A. Saccardo, 1902
- Genus Haplotrichum Eschweiler, 1824
- Genus Hapsidascus J. Kohlmeyer & B. Volkmann-Kohlmeyer, 1991
- Genus Haptocara C. Drechsler, 1975
- Genus Haradamyces H. Masuya, M. Kusunoki, H. Kosaka & T. Aikawa, 2009
- Genus Haraella K. Hara & I. Hino, 1955 accepted as Hinoa Hara & Hino in Hino, 1961
- Genus Harmoniella V.N. Borissova, 1981
- Genus Harpagomyces Wilczynski, 1911
- Genus Harpographium P.A. Saccardo, 1880
- Genus Harposporella F. von Höhnel, 1925
- Genus Harristroma Le Renard, Strullu-Derrien, Berbee & Coiro, 2024 †
- Genus Harziella Costantin & Matruchot, 1899 accepted as Lepisticola W. Gams in Gams, Seifert & Morgan-Jones, 2009
- Genus Hasskarlinda O. Kuntze, 1891 accepted as Corallomyces E.M. Fries, 1849
- Genus Hawksworthia Manoharachary, N.K. Rao, D.K. Agarwal & Kunwar, 2004
- Genus Hawksworthiana U. Braun, 1988
- Genus Heimiella Racovitza, 1959
- Genus Heimiodora J. Nicot in J. Nicot & A. Parguey, 1960
- Genus Helensiella D.W. Minter, R.F. Castañeda-Ruiz & G. Heredia in Minter, 2015
- Genus Helhonia B.C. Sutton, 1980?
- Genus Heliastrum Petrak, 1931
- Genus Helicoceras Linder, 1931
- Genus Helicofilia T. Matsushima, 1983
- Genus Helicogoosia V. Holubová-Jechová, 1991
- Genus Helicominopsis F.C. Deighton, 1960
- Genus Helicorhoidion S. Hughes, 1958
- Genus Helicosingula P.S. van Wyk, W.F.O. Marasas, S.W. Baard & P.S. Knox-Davies, 1985
- Genus Helicosporella Arnaud, 1954
- Genus Helicosporina G. Arnaud ex Rambelli, 1960
- Genus Helicosporina Arnaud, 1954
- Genus Helicostilbe F. von Höhnel, 1902
- Genus Helicostilbe Linder, 1929 accepted as Trochophora R.T. Moore, 1955
- Genus Helicothyrium I. Hino & K. Katumoto, 1960
- Genus Helicoubisia D. Lunghini & A. Rambelli, 1979
- Genus Heliocephala V.G. Rao, K.A. Reddy & G.S. de Hoog, 1984
- Genus Heliscella Marvanová, 1980
- Genus Heliscina L. Marvanová, 1980
- Genus Helminthophora Bonorden, 1851
- Genus Helminthosporiomyces G.F. Sepúlveda, R.C. Pereira-Carvalho & J.C. Dianese, 2009
- Genus Helminthosporiopsis Spegazzini, 1880
- Genus Hemialysidium Holubová-Jechová, 1992
- Genus Hemibeltrania Pirozynski, 1963
- Genus Hemicorynesporella Subramanian, 1992
- Genus Hemidothis H. Sydow & P. Sydow, 1916
- Genus Hemisphaeropsis Petrak, 1947
- Genus Hendersonia P.A. Saccardo, 1884 accepted as Stagonospora (P.A. Saccardo) P.A. Saccardo, 1884
- Genus Hendersoniella Tassi, 1900
- Genus Hendersonina E.J. Butler in E.J. Butler & A.H. Khan, 1913
- Genus Hendersoniopsis F. von Höhnel, 1918
- Genus Hendersonulina Tassi, 1902
- Genus Hendersonulina Petrak, 1951
- Genus Henicospora P.M. Kirk & B.C. Sutton, 1980
- Genus Hennebertia M. Morelet, 1969
- Genus Hermatomyces Spegazzini, 1911
- Genus Herpomyces Thaxter, 1902
- Genus Herposira H. Sydow, 1938
- Genus Herreromyces R.F. Castañeda Ruiz & W.B. Kendrick, 1991
- Genus Heterocephalum Thaxter, 1903
- Genus Heteroceras P.A. Saccardo, 1915 accepted as Neoheteroceras T.R. Nag Raj, 1993
- Genus Heteroconidium Sawada, 1944
- Genus Heteroseptata E.F. Morris, 1972
- Genus Heterosporiopsis Petrak, 1950
- Genus Heterostomum E.M. Fries
- Genus Heuflera Bail, 1860
- Genus Hexacladium D.L. Olivier, 1983
- Genus Heydenia Fresenius, 1852
- Genus Himantia Persoon, 1801
- Genus Hinoa Hara & Hino in Hino, 1961
- Genus Hippocrepidium Saccardo, 1874 accepted as Hirudinaria Cesati, 1856
- Genus Hirudinaria Cesati, 1856
- Genus Hobsoniopsis D.L. Hawksworth in Sikaroodi et al., 2001
- Genus Holubovaea A. Mercado, 1983
- Genus Holubovaniella R.F. Castañeda, 1985
- Genus Homalopeltis A.C. Batista & R.C. Valle, 1961
- Genus Honeggeriella K.K.S. Matsunaga, R.A. Stockey & A.M.F. Tomescu in Lücking, Hodkinson & Leavitt, 2017 †
- Genus Honeggeriella K.K.S. Matsunaga, R.A. Stockey & A.M.F. Tomescu, 2013 † accepted as Honeggeriella K.K.S. Matsunaga, R.A. Stockey & A.M.F. Tomescu in Lücking, Hodkinson & Leavitt, 2017 †
- Genus Hormiactella P.A. Saccardo, 1886
- Genus Hormiactina Bubák, 1916 accepted as Hormiactis Preuss, 1851
- Genus Hormiactis Preuss, 1851
- Genus Hormiscioideus M. Blackwell & J.W. Kimbrough, 1979
- Genus Hormisciopsis Sumstine, 1914
- Genus Hormocephalum H. Sydow, 1939
- Genus Hormocladium F. von Höhnel, 1923
- Genus Hormococcus Preuss, 1852
- Genus Hormodochis F.E. Clements, 1909 accepted as Trullula Cesati, 1852
- Genus Hormodochium (P.A. Saccardo) Trotter in P.A. Saccardo, 1931 accepted as Trullula Cesati, 1852
- Genus Hormographis J. Guarro, L. Punsola & J.A. von Arx, 1986
- Genus Hormyllium F.E. Clements, 1909 accepted as Hormococcus Preuss, 1852
- Genus Hughesinia J.C. Lindquist & I.J. Gamundi, 1970
- Genus Humicolopsis O. Verona, 1977
- Genus Humicolopsis D. Cabral & S. Marchand in S. Marchand et al., 1976
- Genus Hyalocamposporium Révay & J. Gönczöl, 2007
- Genus Hyalocephalotrichum D. Nagaraju, I.K. Kunwar, G. Sureshkumar & C. Manoharachary, 2011
- Genus Hyalocladium Mustafa, 1977
- Genus Hyaloderma Spegazzini, 1884
- Genus Hyalodermella Spegazzini, 1918
- Genus Hyalodictyum Woronichin, 1916
- Genus Hyalohelicomina T. Yokoyama, 1974
- Genus Hyalopleiochaeta R.F. Castañeda, J. Guarro & J. Cano, 1996
- Genus Hyalosynnema T. Matsushima, 1975
- Genus Hyalothyridium Tassi, 1900
- Genus Hyalothyris F.E. Clements, 1909 accepted as Hyalothyridium Tassi, 1900
- Genus Hyalotiastrum B.A. Abbas, B.C. Sutton, A. Ghaffar & Abbas, 2003
- Genus Hyalotrochophora Finley & E.F. Morris, 1967 accepted as Delortia Patouillard & Gaillard, 1888
- Genus Hydnopsis Tulasne & C. Tulasne, 1865
- Genus Hydromelitis A. Ferrer, A.N. Miller, C. Sarmiento & C.A. Shearer, 2012
- Genus Hydrometrospora J. Gönczöl & Á. Révay, 1985
- Genus Hymenella E.M. Fries, 1822
- Genus Hymeniopeltis A.C. Batista, 1959
- Genus Hymenobactron (P.A. Saccardo) F. von Höhnel, 1916
- Genus Hymenobia W. Nylander, 1854
- Genus Hymenobiella D. Triebel, 1989 accepted as Hymenobia W. Nylander, 1854
- Genus Hymenopsis P.A. Saccardo, 1886
- Genus Hymenula E.M. Fries, 1825 accepted as Hymenella E.M. Fries, 1822
- Genus Hyperomyxa Corda, 1839 accepted as Cheirospora Mougeot & E.M. Fries, 1825
- Genus Hyperus F.L. Stevens, 1927
- Genus Hypha Persoon, 1822
- Genus Hyphasma Rebentisch ex Nocca & Balbis, 1821
- Genus Hyphochlaena Ciferri, 1962
- Genus Hyphodiscosia B.C. Lodha & K.R.C. Reddy, 1974
- Genus Hyphodiscosioides T. Matsushima, 1993
- Genus Hyphopolynema T.R. Nag Raj, 1977
- Genus Hyphosoma H. Sydow, 1924
- Genus Hyphostereum Patouillard in Patouillard & Lagerheim, 1892
- Genus Hyphothyrium B.C. Sutton & I.G. Pascoe, 1989
- Genus Hypocline H. Sydow, 1939
- Genus Hypogloeum Petrak, 1923
- Genus Hypospila E.M. Fries, 1825
- Genus Hysteridium P. Karsten, 1905
- Genus Hysteriopsis H.T. Geyler in N.A.E. von Nordenskiöld, 1887 †
- Genus Hysteropycnis Hilitzer, 1929
- Genus Ialomitzia Gruia, 1964
- Genus Icerymyces Brain, 1923
- Genus Idiocercus B.C. Sutton, 1967
- Genus Ilyonectria P. Chaverri & C. Salgado, 2011
- Genus Imicles Shoemaker & Hambleton, 2001
- Genus Imimyces A. Hernández-Gutiérrez & B.C. Sutton, 1997 accepted as Polydesmus Montagne, 1845
- Genus Impudentia V. Vujanović in V. Vujanović, Mailloux, Hamel & St-Arnaud, 2003
- Genus Inesiosporium R.F. Castañeda Ruiz & W. Gams, 1997
- Genus Infrafungus Ciferri, 1951
- Genus Infundibulomyces N. Plaingam, S. Somrithipol & E.B.G. Jones, 2003
- Genus Inifatiella R.F. Castañeda, 1985
- Genus Intercalarispora J.L. Crane & J.D. Schoknecht in J.D. Schoknecht & J.L. Crane, 1983
- Genus Intralichen D. Hawksworth & M.S. Cole, 2002
- Genus Ionophragmium E.P. Peres, 1961
- Genus Iraniella Petrak, 1949
- Genus Irpicomyces F.C. Deighton, 1969
- Genus Isariella P.C. Hennings, 1908
- Genus Ischnostroma H. Sydow & P. Sydow, 1914
- Genus Isthmoconidium J. Etayo & F. Berger, 2013
- Genus Isthmolongispora Matsushima, 1971
- Genus Isthmophragmospora A.J. Kuthubutheen & A. Nawawi, 1992
- Genus Isthmotricladia Matsushima in Y. Kobayasi, 1971
- Genus Ityorhoptrum P.M. Kirk, 1986
- Genus Iyengarina C.V. Subramanian, 1958
- Genus Jahniella Petrak, 1921
- Genus Jainesia Gonz. Fragoso & Ciferri, 1925
- Genus Janetia M.B. Ellis, 1976
- Genus Janospora (Starbäck) F. von Höhnel in Falck, 1923 accepted as Stilbospora Persoon, 1797
- Genus Javonarxia C.V. Subramanian, 1995
- Genus Jayarambhatia J. Pratibha, 2013
- Genus Jerainum A. Nawawi & A.J. Kuthubutheen, 1992
- Genus Jimwhiteia M. Krings & T.N. Taylor, 2012 †
- Genus Johnstonia M.B. Ellis, 1971 accepted as Neojohnstonia B.C. Sutton, 1983
- Genus Jubispora B.C. Sutton & H.J. Swart, 1986
- Genus Junctospora D.W. Minter & V. Holubová-Jechová, 1981
- Genus Junewangia W.A. Baker & G. Morgan-Jones in W.A. Baker et al., 2002
- Genus Kalamarospora G. Delgado, 2011
- Genus Kalchbrenneriella Diederich & M.S. Christiansen, 2002
- Genus Kaleidosporium K.T. van Warmelo & B.C. Sutton, 1981
- Genus Kamatella K.H. Anahosur, 1969
- Genus Kameshwaromyces Kamal, R.K. Verma & G. Morgan-Jones, 1986
- Genus Karsteniomyces D.L. Hawksworth, 1980
- Genus Keissleriomyces D.L. Hawksworth, 1981
- Genus Kendrickomyces B.C. Sutton, V.G. Rao & Mhaskar, 1976
- Genus Kephartia R.C. Harris & J.C. Lendemer in Lendemer, Harris & Tripp, 2013
- Genus Kermincola K. Sulc, 1907
- Genus Ketubakia M.N. Kamat, K.I.M. Varghese & V.G. Rao in K.I.M. Varghese & V.G. Rao, 1987
- Genus Kiliophora A.J. Kuthubutheen & A. Nawawi, 1993
- Genus Kionocephala P.M. Kirk, 1986
- Genus Kirstenboschia W. Quaedvlieg, G.J.M. Verkley & P.W. Crous in Quaedvlieg, Verkley, Shin, Barreto, Alfenas, Swart, Groenewald & Crous, 2013
- Genus Kmetia Bresadola & P.A. Saccardo in P.A. Saccardo & P. Sydow, 1902
- Genus Kmetiopsis A.C. Batista & E.P. Peres, 1960
- Genus Knemiothyrium A.C. Batista & J.L. Bezerra, 1960
- Genus Knufia L.J. Hutchison & W.A. Untereiner in L.J. Hutchison et al., 1996
- Genus Kodonospora K. Ando, 1993
- Genus Kolletes Kohlmeyer & Volkmann-Kohlmeyer, 2005
- Genus Konenia K. Hara, 1913
- Genus Kontospora A. Roldán, M. Honrubia & L. Marvanová in A. Roldán et al., 1990
- Genus Koorchalomella Chona, Munjal & J.N. Kapoor, 1958
- Genus Kordyanella F. von Höhnel, 1904 accepted as Tremellidium Petrak, 1927
- Genus Korunomyces C.S. Hodges & F.A. Ferreira, 1981
- Genus Kostermansinda Rifai, 1968
- Genus Kostermansindiopsis R.F. Castañeda Ruiz, 1986
- Genus Kramabeeja G.V. Rao & K.A. Reddy, 1981
- Genus Kramasamuha C.V. Subramanian & B.P.R. Vittal, 1973
- Genus Kravtzevia Shvartsman, 1961
- Genus Kreiseliella U. Braun, 1991
- Genus Kretschmaria E.M. Fries, 1849
- Genus Krishnamyces Hosagoudar, 2003
- Genus Kumanasamuha P.R. Rao & D. Rao, 1964
- Genus Kundalinella D. Hande & A. Subhedar, 2001
- Genus Kurssanovia Pidoplichko, 1948 accepted as Fusariella P.A. Saccardo, 1884
- Genus Kurssanovia Kravtzev, 1955
- Genus Kutilakesa C.V. Subramanian, 1956 accepted as Sarcopodium Ehrenberg ex A.T. Brongniart in F. Cuvier, 1824
- Genus Kutilakesopsis V. Agnihothrudu & G.C.S. Barua, 1957 accepted as Sarcopodium Ehrenberg ex A.T. Brongniart in F. Cuvier, 1824
- Genus Kyphophora B.C. Sutton, 1991
- Genus Labrella E.M. Fries, 1828
- Genus Lacellina P.A. Saccardo in P.A. Saccardo & Trotter, 1913
- Genus Lacellinopsis C.V. Subramanian, 1953
- Genus Lachnodochium El. Marchal, 1895
- Genus Laciniocladium Petri, 1917
- Genus Lactydina C.V. Subramanian, 1978
- Genus Laeviomyces D. Hawksworth, 1981
- Genus Lageniforma Plunkett, 1925
- Genus Lagenomyces Cavalcante & Silva in Cavalcante et al., 1972
- Genus Lambdasporium Matsushima in Y. Kobayasi, 1971
- Genus Lambinonia Sérusiaux & Diederich, 2005
- Genus Lamproconium (W.B. Grove) W.B. Grove, 1937
- Genus Lamyella Berlese, 1899 accepted as Neolamya Theissen & H. Sydow, 1918
- Genus Lappodochium T. Matsushima, 1975
- Genus Lasiodiplodiella Zambettakis, 1955
- Genus Lasiophoma Spegazzini, 1918
- Genus Lasiothyrium H. Sydow & P. Sydow, 1913
- Genus Lasmenia Spegazzini, 1886
- Genus Lasmeniella F. Petrak & H. Sydow, 1927
- Genus Latericonis G.V. Rao, K.A. Reddy & de Hoog, 1984
- Genus Lateriramulosa Matsushima, 1971
- Genus Laterispora F.A. Uecker, W.A. Ayers & P.B. Adams, 1982
- Genus Latruncellus M. Vermeulen, M. Gryzenhout & J. Roux, 2011
- Genus Lauriomyces R.F. Castañeda Ruiz in Castañeda Ruiz & Kendrick, 1990
- Genus Lawalreea P. Diederich, 1990
- Genus Lecaniocola Brain, 1923
- Genus Lecanostictopsis B.C. Sutton & P.W. Crous, 1997
- Genus Lecythispora P.N. Chowdhry, 1985
- Genus Leeina Petrak, 1923
- Genus Leightoniomyces D.L. Hawksworth & B.C. Sutton in D.L. Hawksworth, 1977
- Genus Lejosphaerella F. von Höhnel, 1919
- Genus Lembuncula Ciferri, 1954
- Genus Lemkea G. Morgan-Jones & R.C. Sinclair, 1983
- Genus Lentescospora Linder, 1944
- Genus Lepidophyton Tribondeau, 1899
- Genus Lepisticola W. Gams in Gams, Seifert & Morgan-Jones, 2009
- Genus Lepra Chevallier, 1826
- Genus Leprieurina G. Arnaud, 1918
- Genus Leprieurinella A.C. Batista & H. Maia, 1961
- Genus Leptochlamys Diedicke, 1921
- Genus Leptocladia L. Marvanová & E. Descals, 1985 accepted as Stenocladiella L. Marvanová & E. Descals, 1987
- Genus Leptodermella F. von Höhnel, 1915
- Genus Leptodermopsis Spegazzini ex F. von Höhnel in Falck, 1923
- Genus Leptomelanconium Petrak, 1923
- Genus Leptophyllosticta I.E. Brezhnev, 1939
- Genus Leptosacca H. Sydow, 1928
- Genus Leptosphaerella Spegazzini, 1909
- Genus Leptosporina Chardón, 1939
- Genus Leptosporium (P.A. Saccardo) Höhnel in Falck, 1923 accepted as Fusicolla Bonorden, 1851
- Genus Leptostromella (P.A. Saccardo) P.A. Saccardo, 1884
- Genus Leptothyrella P.A. Saccardo, 1885
- Genus Leptothyrina F. von Höhnel, 1915
- Genus Leptothyrium G. Kunze in G. Kunze & J.K. Schmidt, 1823
- Genus Leptotrichum Corda, 1842
- Genus Leucoconiella Batista, H. Maia & Peres, 1960
- Genus Leucoconis Theissen & H. Sydow, 1918
- Genus Leucodochium H. Sydow & P. Sydow, 1917
- Genus Leucopenicillifer G.R.W. Arnold, 1971
- Genus Leucosporium Corda in Sturm, 1833
- Genus Leuliisinea Matsushima, 1985
- Genus Leutheromyces
- Genus Levieuxia E.M. Fries, 1848
- Genus Liberomyces S. Pazoutová, M. Kolarík & A. Kubátová in Pažoutová, Šrůtka, Holuša, Chudíčková, Kubátová & Kolařík, 2012
- Genus Libertiella Spegazzini & Roumeguère in Roumeguère, 1880
- Genus Lichenobactridium P. Diederich & J. Etayo in F.J.A. Daniels et al., 1995
- Genus Lichenodiplis B.J. Dyko & D.L. Hawksworth in D.L. Hawksworth & B.J. Dyko, 1979
- Genus Lichenodiplisiella S. Kondratyuk & I. Kudratov, 2002
- Genus Lichenohendersonia Calatayud & Etayo, 2001
- Genus Lichenopeziza H. Zukal, 1884
- Genus Lichenophoma Keissler, 1911
- Genus Lichenopuccinia D.L. Hawksworth & J. Hafellner in D.L. Hawksworth, 1984
- Genus Lichenostella V. Calatayud & J. Etayo, 1999
- Genus Lichenosticta Zopf, 1898
- Genus Lindauomyces Koorders, 1907 accepted as Arthrobotryum Cesati, 1854
- Genus Lindavia Nieuwland, 1916 accepted as Scopularia Preuss, 1851
- Genus Linochorella H. Sydow & P. Sydow, 1912
- Genus Linodochium F. von Höhnel, 1909
- Genus Linosporoidea R. Keller, 1895 †
- Genus Listeromyces Penzig & P.A. Saccardo, 1901
- Genus Lithosporocarpia R. Kar, B.D. Mandaokar & R.K. Kar, 2009 †
- Genus Lobatopedis P.M. Kirk, 1979
- Genus Lobomyces Borelli, 1968
- Genus Lolia Abdel-Aziz & Abdel-Wahab, 2011
- Genus Loliomyces Maire, 1937
- Genus Lomaantha C.V. Subramanian, 1954
- Genus Lomachashaka C.V. Subramanian, 1956
- Genus Lonchospermella Spegazzini, 1908
- Genus Lophodermopsis Spegazzini, 1910
- Genus Lopidia Vezda ined.
- Genus Loten M. Adanson, 1763
- Genus Ludwigomyces Kirschstein, 1939
- Genus Lunospora N.O. Fransden, 1943 accepted as Pseudoseptoria Spegazzini, 1910
- Genus Lunulospora Ingold, 1942
- Genus Luzfridiella R.F. Castañeda Ruiz & W.B. Kendrick, 1991
- Genus Lylea G. Morgan-Jones, 1975
- Genus Lyonella H. Sydow, 1925
- Genus Lysotheca R. Ciferri, 1962
- Genus Macilvainea Nieuwland, 1916 accepted as Drudeola O. Kuntze, 1891
- Genus Mackenziea Yanna & K.D. Hyde, 2002 accepted as Mackenziella Yanna & K.D. Hyde in Gams, Seifert & Morgan-Jones, 2009
- Genus Mackenziella Yanna & K.D. Hyde in Gams, Seifert & Morgan-Jones, 2009
- Genus Macraea Subramanian, 1953 accepted as Prathigada Subramanian in Subramanian & Ramakrishnan, 1956
- Genus Macrodendrophoma T. Johnson, 1904
- Genus Macrodiplis Clements & Shear, 1931 accepted as Macrodiplodiopsis Petrak, 1922
- Genus Macrodiplodia P.A. Saccardo, 1884
- Genus Macrodiplodiopsis Petrak, 1922
- Genus Macroseptoria Petrak, 1923 accepted as Trichoseptoria Cavara, 1892(?)
- Genus Macrostilbum Patouillard, 1898
- Genus Macrotrichum Greville, 1825
- Genus Magdalaenaea Arnaud, 1952
- Genus Mahabalella B.C. Sutton & S.D. Patil, 1966
- Genus Malacodermis Bubák & Kabát, 1912 accepted as Glutinium E.M. Fries, 1849
- Genus Malleomyces Hallier, 1870
- Genus Mammariopsis L.J. Hutchison & J. Reid, 1988
- Genus Manginella A.C. Batista & H. Maia, 1961
- Genus Manginula G. Arnaud, 1918
- Genus Manginulopsis A.C. Batista & E.P. Peres in A.C. Batista et al., 1963 accepted as Leptothyrium G. Kunze in G. Kunze & J.K. Schmidt, 1823
- Genus Manoharachariomyces N.K. Rao, D.K. Agarwal & Kunwar, 2005
- Genus Mapletonia B.C. Sutton, 1991
- Genus Marssoniella F. von Höhnel, 1916 accepted as Neomarssoniella U. Braun, 1991
- Genus Martinellisia V.G. Rao & K.I.M. Varghese, 1977
- Genus Masoniomyces J.L. Crane & K.P. Dumont, 1975
- Genus Massalongina Bubák, 1916
- Genus Massariothea H. Sydow, 1939
- Genus Mastigomyces A. Imshenetski & A. Kriss, 1933
- Genus Mastigonema Spegazzini, 1926 accepted as Chaetospermum P.A. Saccardo, 1892
- Genus Mastigosporium Riess in Fresenius, 1852
- Genus Matruchotia Boulanger, 1893
- Genus Matruchotiella Grigoraki, 1924 accepted as Ateleothylax M. Ota & M. Langeron, 1923
- Genus Matsushimiella R.F. Castañeda & Heredia, 2001
- Genus Matsushimomyces V.G. Rao & K.I.M. Varghese, 1979
- Genus Mauginiella Cavara, 1925
- Genus Maurya Patouillard, 1898
- Genus Maxibeltrania A. Rambelli, 2011
- Genus Medusamyces G.L. Barron & E. Szijarto, 1990
- Genus Medusula Tode, 1790
- Genus Megacapitula J.L. Chen & S.S. Tzean, 1993
- Genus Megalodochium F.C. Deighton, 1960
- Genus Megaster Ciferri, Batista, Nascimento & P.C. Azevedo, 1956
- Genus Melanocephala S.J. Hughes, 1979
- Genus Melanoderma B.K. Cui & Y.C. Dai, 2011
- Genus Melanodiscus F. von Höhnel, 1918
- Genus Melanographium P.A. Saccardo, 1913
- Genus Melanomyces H. Sydow & P. Sydow, 1917
- Genus Melanophoma M.C. Papendorf & Toit, 1967
- Genus Melanosella Örösi-Pál, 1936
- Genus Melanosphaeria Sawada, 1922 accepted as Sirosphaera H. Sydow & P. Sydow, 1913
- Genus Melophia P.A. Saccardo, 1884
- Genus Menidochium R.F. Castañeda Ruiz & W.B. Kendrick, 1990
- Genus Menoidea L. Mangin & Hariot, 1907
- Genus Mercadomyces J. Mena, 1988
- Genus Meridianelia G. Kantvilas & H.T. Lumbsch, 2009
- Genus Metadiplodia H. Sydow, 1937
- Genus Metarhiziopsis D.W. Li, R.S. Cowles & C.R. Vossbrinck, 2008
- Genus Metasphaerella Spegazzini, 1924
- Genus Metazythia Petrak, 1950
- Genus Metazythiopsis M. Morelet, 1988
- Genus Methysterostomella Spegazzini, 1910 accepted as Phragmopeltis Hennings, 1904
- Genus Micareopsis R.C. Harris & J.C. Lendemer in Lendemer, Harris & Tripp, 2013
- Genus Microblastosporon Ciferri, 1930
- Genus Microclava F.L. Stevens, 1917
- Genus Microcyclephaeria Batista, 1958
- Genus Microcyclospora J. Frank, H.-J. Schroers & P.W. Crous, 2010
- Genus Microcyclosporella J. Frank, H.-J. Schroers & P.W. Crous, 2010
- Genus Microcyta F. Petrak & H. Sydow, 1927 accepted as Ceuthosporella Petrak & H. Sydow, 1923
- Genus Microdiscula F. von Höhnel, 1915
- Genus Microdothiorella C.A.A. Costa & Sousa da Câmara, 1955
- Genus Microhendersonula Dias & Sousa da Câmara, 1952
- Genus Micropera Léveillé, 1846 accepted as Foveostroma F. DiCosmo, 1978
- Genus Microperella F. von Höhnel, 1909
- Genus Microsphaeropsis Sousa da Câmara, Oliveira & Luz, 1936
- Genus Microtrichosphaera R.C. Pereira-Carvalho, G. Sepúlveda-Chavera & J.C. Dianese, 2009
- Genus Microtyle Spegazzini, 1919
- Genus Microxyphiella Spegazzini, 1918
- Genus Microxyphiopsis A.C. Batista in A.C. Batista & Ciferri, 1963
- Genus Micula Duby, 1858 accepted as Foveostroma F. DiCosmo, 1978
- Genus Milospium D. Hawksworth, 1975
- Genus Mindoa Petrak, 1949
- Genus Miniancora L. Marvanová & F. Bärlocher, 1989
- Genus Minimelanolocus R.F. Castañeda & Heredia, 2001
- Genus Minutoexcipula V. Atienza & D.L. Hawksworth, 1994
- Genus Minutophoma D.L. Hawksworth, 1981
- Genus Miricatena E. Punithalingam & B.M. Spooner, 2012
- Genus Mirimyces T.R. Nag Raj, 1993
- Genus Mitrorhizopeltis Batista & Cavalcanti, 1964 accepted as Tracylla (P.A. Saccardo) F. Tassi, 1904
- Genus Mixtoconidium J. Etayo, 1995
- Genus Molgosphaera Dumortier, 1822
- Genus Monilochaetes Halsted ex Harter, 1916
- Genus Monochaetiella E. Castellani, 1943
- Genus Monochaetopsis Patouillard in Pitard, 1918
- Genus Monodia Breton & Faurel, 1970
- Genus Monodidymaria U. Braun, 1994
- Genus Monodisma J.L. Alcorn, 1975
- Genus Monodorus Batista & J.L. Bezerra
- Genus Monopodium Delacroix, 1890 accepted as Acremoniella P.A. Saccardo, 1886
- Genus Monosporiella Spegazzini, 1918
- Genus Monosporium Bonorden, 1851
- Genus Monothecium Libert accepted as Mastigosporium Riess in Fresenius, 1852
- Genus Monotospora Corda, 1837
- Genus Monotoyella Castellani & Chalmers, 1913
- Genus Monotretomyces G. Morgan-Jones, R.C. Sinclair & A. Eicker, 1987 accepted as Corynesporopsis P.M. Kirk, 1981
- Genus Monotrichum Gäumann, 1922
- Genus Monotropomyces Costantin & Dufour, 1921
- Genus Montoyella Castellani & Chalmers, 1907
- Genus Moorella P.R. Rao & D. Rao, 1964
- Genus Moralesia Urries, 1956
- Genus Moronopsis Delacroix, 1891 accepted as Cheirospora Mougeot & E.M. Fries, 1825
- Genus Morrisographium M. Morelet, 1968
- Genus Mouliniea C.P. Robin, 1853
- Genus Mucobasispora Mustafa & Abdul-Wahid, 1990
- Genus Mucosetospora M. Morelet, 1972
- Genus Muiaria Thaxter, 1914
- Genus Muiogone Thaxter, 1914
- Genus Muirella R. Sprague, 1959
- Genus Multicladium K.B. Deshpande & K.S. Deshpande, 1966
- Genus Multipatina Sawada, 1928
- Genus Multisporascus S. Marincowitz, M.J. Wingfield & P.W. Crous, 2008
- Genus Muricularia P.A. Saccardo, 1877
- Genus Mycardothelium Vainio, 1928
- Genus Mycelephas R.F. Castañeda Ruiz in Gams, Seifert & Morgan-Jones, 2009
- Genus Myceloderma Ducomet, 1907
- Genus Mycobacillaria H.A. Naumov, 1915
- Genus Mycocarpon S.A. Hutchinson, 1955 †
- Genus Mycocentrodochium K. Matsushima & T. Matsushima, 1996
- Genus Mycochaetophora Hara & Ogawa, 1931
- Genus Mycochlamys S. Marchand & D. Cabral in S. Marchand et al., 1976
- Genus Mycoderma Persoon, 1822
- Genus Mycoenterolobium R.D. Goos, 1970
- Genus Mycomater E.M. Fries, 1825
- Genus Mycomyces F. Wyss-Chodat, 1927
- Genus Mycopara A.C. Batista & J.L. Bezerra, 1960
- Genus Mycophaga F.L. Stevens, 1924 accepted as Hyaloderma Spegazzini, 1884
- Genus Mycospraguea U. Braun & C.T. Rogerson in U. Braun, 1993
- Genus Mycosticta F. von Höhnel, 1918
- Genus Mycosylva M.C. Tulloch, 1973
- Genus Mycotodea Kirschstein, 1936
- Genus Mycotribulus Nag Raj & W.B. Kendrick, 1970
- Genus Mycousteria M.L. Farr, 1986
- Genus Myiocoprula Petrak, 1955
- Genus Myriellina F. von Höhnel, 1915
- Genus Myriocephalum De Notaris ex Corda, 1842 accepted as Cheirospora Mougeot & E.M. Fries, 1825
- Genus Myriodontium R.A. Samson & L. Polonelli, 1978
- Genus Myrmecomyces D.P. Jouvenaz & J.W. Kimbrough, 1991
- Genus Myropyxis Cesati ex Rabenhorst, 1851
- Genus Myrotheciastrum S.Q. Abbas & B.C. Sutton, 1988
- Genus Myrotheciopsis
- Genus Mystrosporiella R.L. Munjal & D.D. Kulshrestha, 1969
- Genus Mystrosporium Corda, 1837
- Genus Myxodiscus F. von Höhnel, 1906 accepted as Leptothyrium G. Kunze in G. Kunze & J.K. Schmidt, 1823
- Genus Myxofusicoccum Diedicke, 1912 accepted as Pseudodiscula R. Laubert, 1911
- Genus Myxoparaphysella Caballero, 1941
- Genus Myxosporella P.A. Saccardo, 1881
- Genus Myxosporidiella A. Negru, 1960
- Genus Myxosporium Link in Willdenow, 1825
- Genus Myxostomellina H. Sydow, 1931
- Genus Myxothyriopsis Batista & A.F. Vital, 1956
- Genus Myxothyrium Bubák & Kabát, 1915
- Genus Naemaspora Persoon, 1796
- Genus Naemaspora Saccardo, 1880 accepted as Roscoepoundia O. Kuntze, 1898
- Genus Naemosphaera P.A. Karsten, 1888
- Genus Naemosphaerella F. von Höhnel, 1923
- Genus Naemospora Roth ex O. Kuntze, 1898
- Genus Nagrajia R.F. Castañeda Ruiz & W.B. Kendrick, 1991
- Genus Nagrajomyces V.A. Mel'nick, 1984
- Genus Nakatopsis S.R. Whitton, E.H.C. McKenzie & K.D. Hyde, 2001
- Genus Nanoschema B.C. Sutton, 1980
- Genus Naothyrsium A.C. Batista, 1960
- Genus Naranus T. Watanabe, 1995
- Genus Nascimentoa Ciferri & Batista, 1956 accepted as Spiropes R. Ciferri, 1955
- Genus Natalia E.M. Fries, 1847 accepted as Levieuxia E.M. Fries, 1848
- Genus Natarajania Pratibha & Bhat, 2006
- Genus Naumovela Kravtzev, 1955
- Genus Navaneethospora V.G. Rao, 1994
- Genus Necraphidium Ciferri, 1951
- Genus Negeriella Hennings, 1897
- Genus Nematocolla Link, 1833 accepted as Myxosporium Link in Willdenow, 1825
- Genus Nematogonum Desmazières, 1834
- Genus Nematographium G. Goidanich, 1935
- Genus Nematospora Tassi, 1904 accepted as Giulia F. Tassi, 1904
- Genus Nemozythiella F. von Höhnel in Weese, 1925
- Genus Neoaleurodiscus S.H. Wu, 2010
- Genus Neoalpakesa E. Punithalingam, 1981
- Genus Neoarbuscula B.C. Sutton, 1983
- Genus Neobarclaya P.A. Saccardo in P.A. Saccardo & P. Sydow, 1899
- Genus Neochaetospora B.C. Sutton & K.V. Sankaran, 1991
- Genus Neocryptospora Petrak, 1959
- Genus Neodiplodina Petrak, 1954
- Genus Neofuckelia Zeller & Goodding, 1935
- Genus Neoheteroceras T.R. Nag Raj, 1993
- Genus Neojohnstonia B.C. Sutton, 1983
- Genus Neokellermania E. Punithalingam, 1981 accepted as Pseudorobillarda M. Morelet, 1968
- Genus Neolamya Theissen & H. Sydow, 1918
- Genus Neoligniella N.A. Naumov, 1951
- Genus Neomarssoniella U. Braun, 1991
- Genus Neomelanconium Petrak, 1940
- Genus Neoovularia U. Braun, 1992
- Genus Neopeltis H. Sydow in H. Sydow & Petrak, 1937
- Genus Neopericonia Kamal, A.N. Rai & G. Morgan-Jones, 1983
- Genus Neophoma F. Petrak & H. Sydow, 1927
- Genus Neopiptostoma O. Kuntze, 1898 accepted as Piptostomum Léveillé, 1845
- Genus Neoplaconema B.C. Sutton, 1977
- Genus Neoplacosphaeria Petrak, 1921 accepted as Sphaeriothyrium Bubák, 1916
- Genus Neoramularia U. Braun, 1991
- Genus Neospegazzinia Petrak & H. Sydow, 1936
- Genus Neosporidesmium Á. Mercado Sierra & J. Mena Portales, 1988
- Genus Neothyridaria Petrak, 1934
- Genus Neothyridiaria Petrak, 1934
- Genus Neottiospora Desmazières, 1843
- Genus Neottiosporella F. von Höhnel ex Falck, 1923
- Genus Neottiosporina Subramanian, 1961
- Genus Neottiosporis F.E. Clements & Shear, 1931 accepted as Neottiosporella F. von Höhnel ex Falck, 1923
- Genus Neta C.A. Shearer & J.L. Crane, 1971
- Genus Nexomyces
- Genus Nicholsoniella O. Kuntze, 1891 accepted as Libertiella Spegazzini & Roumeguère in Roumeguère, 1880
- Genus Nidulispora A. Nawawi & A.J. Kuthubutheen, 1990
- Genus Nigrodiplodia Kravtzev, 1955
- Genus Nigromacula Etayo, 2002
- Genus Nigropuncta D.L. Hawksworth, 1981
- Genus Noosia P.W. Crous, R.G. Shivas & A.R. McTaggart, 2011
- Genus Nosophloea E.M. Fries, 1849
- Genus Nothospora Peyronel, 1913
- Genus Novozymia W.P. Wu, 2005
- Genus Nowellia F.L. Stevens, 1924
- Genus Nummospora E. Müller & Shoemaker, 1964
- Genus Nummularoidea (M.C. Cooke & Massee) C.G. Lloyd, 1924
- Genus Nusia C.V. Subramanian, 1995
- Genus Nyctalospora E.F. Morris, 1972
- Genus Nypaella K.D. Hyde & B.C. Sutton, 1992
- Genus Obstipipilus B.C. Sutton, 1968
- Genus Obstipispora R.C. Sinclair & G. Morgan-Jones, 1979
- Genus Ochrosphaera Sawada, 1959
- Genus Octopodotus J. Kohlmeyer & B. Volkmann-Kohlmeyer, 2003
- Genus Odontodictyospora A. Mercado, 1984
- Genus Oedothea H. Sydow, 1930
- Genus Oiscolla Prillieux & Delacroix, 1894
- Genus Ojibwaya B.C. Sutton, 1973
- Genus Olpitrichum G.F. Atkinson, 1894
- Genus Omega B.C. Sutton & D.W. Minter, 1988
- Genus Ommatospora Batista & Cavalcante, 1964 accepted as Microclava F.L. Stevens, 1917
- Genus Ommatosporella A.C. Batista, J. Bezerra & D.J.M. Poroca, 1967
- Genus Oncopodiella G. Arnaud ex Rifai, 1965
- Genus Oncopodium P.A. Saccardo, 1904
- Genus Oncospora Kalchbrenner in Kalchbrenner & M.C. Cooke, 1880
- Genus Oncosporella P.A. Karsten, 1887
- Genus Oncosporomyces A. Batista in A. Batista & H. da Silva Maia, 1965
- Genus Oncostroma Batista & Marasas, 1966
- Genus Onychophora W. Gams, P.J. Fisher & J. Webster, 1984
- Genus Oothyrium H. Sydow, 1939
- Genus Opegraphites Debey & Ettingshausen, 1859 †
- Genus Opethyrium Spegazzini, 1919
- Genus Ophiodendron Arnaud, 1952
- Genus Ophiomassaria Jaczewski, 1894
- Genus Ophiopodium Arnaud, 1954 accepted as Grallomyces F.L. Stevens, 1918
- Genus Ophiosira Petrak, 1955
- Genus Ophiosporella Petrak, 1947 accepted as Phloeosporina F. von Höhnel, 1924
- Genus Ophiotrichum Kunze ex E.M. Fries, 1849
- Genus Orbimyces Linder, 1944
- Genus Orcadia G.K. Sutherland, 1915
- Genus Orcularia (G.O.A. Malme) K. Kalb & M. Giralt, 2011
- Genus Ordus K. Ando & K. Tubaki, 1983
- Genus Ormathodium H. Sydow, 1928
- Genus Orphanocoela T.R. Nag Raj, 1989
- Genus Ostracodermidium K.G. Mukerji, 1973
- Genus Otomyces E.H. Hallier, 1869
- Genus Outhovia J.A. Nieuwland, 1916 accepted as Scopularia Preuss, 1851
- Genus Ovadendron L. Sigler & J.W. Carmichael, 1976
- Genus Ovulariella Bubák & Kabát, 1912
- Genus Paathramaya C.V. Subramanian, 1956
- Genus Pachycladina L. Marvanová, 1987
- Genus Pactilia E.M. Fries, 1837
- Genus Palaeodiplodites K. Watanabe, H. Nishida & T. Kobayashi, 1999 † accepted as Diplodites Teterenikora-Babayan & Taslakhchian ex R.M. Kalgutkar, E.M.V. Nambudiri & W.D. Tidwell, 1993 †
- Genus Palaeoleptosphaeria Barlinge & Paradkar, 1982 †
- Genus Palaeosclerotium G.W. Rothwell, 1972 †
- Genus Palawaniopsis A.C. Batista, R. Ciferri & Nascimento in A.C. Batista & R. Ciferri, 1959
- Genus Paleoserenomyces Currah, Stockey & B.A. LePage, 1998 †
- Genus Paliphora A. Sivanesan & B.C. Sutton, 1985
- Genus Palmomyces Maire, 1926 accepted as Andreaeana B.T. Palm & S.C.J. Jochems, 1924
- Genus Panchanania C.V. Subramanian & N.G. Nair, 1966
- Genus Papilionospora V. Rao & B.C. Sutton, 1976?
- Genus Pappimyces B.C. Sutton & C.S. Hodges, 1975
- Genus Paraaoria R.K. Verma & Kamal, 1987
- Genus Paraarthrocladium T. Matsushima, 1993
- Genus Parabeltrania A. Rambelli in A. Rambelli & C. Ciccarone, 2008
- Genus Parablastocatena Y.D. Zhang & X.G. Zhang in Zhang, Ma, Ma & Zhang, 2012
- Genus Parachinomyces M.M. Thaung, 1979
- Genus Parachionomyces Thaung, 1979
- Genus Paracostantinella C.V. Subramanian & K. Sudha, 1989
- Genus Paracytospora Petrak, 1925
- Genus Paradactylaria C.V. Subramanian & K. Sudha, 1989
- Genus Paradactylella T. Matsushima, 1993
- Genus Paradendryphiopsis M.B. Ellis, 1976
- Genus Paradictyoarthrinium T. Matsushima, 1996
- Genus Paradidymobotryum C.J.K. Wang & B.C. Sutton, 1984
- Genus Paradiplodia Spegazzini ex Clements & Shear, 1931
- Genus Paradischloridium D.J. Bhat & B.C. Sutton, 1985
- Genus Paradiscula Petrak, 1941
- Genus Paraepicoccum T. Matsushima, 1993
- Genus Parafulvia Kamal, A.N. Rai & G. Morgan-Jones, 1983
- Genus Paraharknessia Matsushima, 2003
- Genus Parahelminthosporium C.V. Subramanian & D.J. Bhat, 1989 accepted as Polytretophora A. Mercado, 1983
- Genus Parahyalotiopsis T.R. Nag Raj, 1976
- Genus Paramassariothea C.V. Subramanian & J. Muthumary, 1979
- Genus Paramenisporopsis Matsushima, 2003
- Genus Parapericonia M.B. Ellis, 1976
- Genus Parapericoniella U. Braun, B. Heuchert & K. Schubert, 2006
- Genus Paraphaeoisaria G.S. de Hoog & G. Morgan-Jones, 1978
- Genus Paraphialocephala Budathoki, 1997
- Genus Parapithomyces M.M. Thaung, 1976
- Genus Parapleurotheciopsis P.M. Kirk, 1982
- Genus Parapyricularia M.B. Ellis, 1972
- Genus Pararobillarda T. Matsushima, 1996
- Genus Parasarcopodium Melnik, S.J. Lee & Crous, 2004
- Genus Parasphaeropsis Petrak, 1953
- Genus Paraspora W.B. Grove, 1884
- Genus Parastenella J.C. David, 1991
- Genus Parastigmatellina Batista & Costa in Batista & Ciferri, 1951
- Genus Parasympodiella K.M. Ponnappa, 1975
- Genus Paratetraploa M.K.M. Wong & K.D. Hyde, 2002
- Genus Paratomenticola M.B. Ellis, 1976
- Genus Paratrichoconis F.C. Deighton & K.A. Pirozynski, 1972
- Genus Paraulocladium R.F. Castañeda Ruiz, 1986
- Genus Parvosympodium A.W. Ramaley, 2002
- Genus Paspalomyces D.H. Linder, 1933
- Genus Patellina Spegazzini, 1880 accepted as Catinula Léveillé, 1848
- Genus Patellina Grove ex Petch, 1943
- Genus Patouillardiella Spegazzini, 1889
- Genus Patouillardiella Petch, 1922
- Genus Patriciomyces D.L. Hawksworth in M.S. Cole & D.L. Hawksworth, 2001
- Genus Peckia Clinton in C.H. Peck, 1878 accepted as Drudeola O. Kuntze, 1891
- Genus Peethasthabeeja P. Raghuveer Rao in P. Raghuveer Rao & Ch. Janaki, 1981
- Genus Peglionia G. Goidànich, 1937 accepted as Gyrothrix (Corda) Corda, 1842
- Genus Pellionella (P.A. Saccardo) T. Petch, 1924
- Genus Pellionella Saccardo, 1902
- Genus Peltasterella Batista & H. Maia, 1959
- Genus Peltasterinostroma E. Punithalingam, 1975
- Genus Peltasteropsis Batista & H. Maia, 1959
- Genus Peltistroma Hennings, 1904
- Genus Peltistromella F. von Höhnel, 1907
- Genus Peltosoma H. Sydow, 1925
- Genus Peltostromellina A.C. Batista & A.F. Vital, 1959
- Genus Peltostromopsis A.C. Batista & A.F. Vital, 1959
- Genus Penomyces Giard ex P.A. Saccardo & Trotter, 1913
- Genus Pentaster O. Koukol in Koukol & Ríhová, 2013
- Genus Penzigomyces Subramanian, 1992
- Genus Perelegamyces R.F. Castañeda Ruiz & W.B. Kendrick, 1990
- Genus Peridiomyces H. Karsten, 1843
- Genus Periglandula U. Steiner, E. Leistner & A. Leuchtmann, 2011
- Genus Periola E.M. Fries, 1822
- Genus Periolopsis Maire, 1913 accepted as Sarcopodium Ehrenberg ex A.T. Brongniart in F. Cuvier, 1824
- Genus Perisporiacites J. Félix, 1894 †
- Genus Perisporites L. Pampaloni, 1902 †
- Genus Perisporium E.M. Fries, 1821
- Genus Perizomella H. Sydow, 1927
- Genus Pestalozziella P.A. Saccardo & J.B. Ellis ex P.A. Saccardo, 1882
- Genus Petrakia P. Sydow in H. Sydow & P. Sydow, 1913
- Genus Petrakiopsis C.V. Subramanian & K.R.C. Reddy, 1968
- Genus Petrakomyces Subramanian & K. Ramakrishnan, 1953 accepted as Ciliochora F. von Höhnel, 1919
- Genus Peylia Opiz, 1857 accepted as Botryosporium Corda in J. Sturm, 1831
- Genus Peyronelina P.J. Fisher, J. Webster & D.F. Kane, 1976
- Genus Peyronelina G. Arnaud, 1952
- Genus Phacidiopsis H.T. Geyler in N.A.E. von Nordenskiöld, 1887 †
- Genus Phacostroma Petrak, 1955
- Genus Phacostromella F. Petrak, 1955
- Genus Phaeoantenariella W.A. Cavalcante, 1969
- Genus Phaeoblastophora Partridge & Morgan-Jones, 2002
- Genus Phaeobotrys M. Calduch, J. Gené & J. Guarro in M. Calduch et al., 2002
- Genus Phaeocandelabrum R.F. Castañeda, L.F.P. Gusmão, J. Guarro & T. Iturriaga in Castañeda Ruiz et al., 2009
- Genus Phaeocapdinula Spegazzini, 1924
- Genus Phaeocytosporella G.L. Stout, 1930 accepted as Phaeocytostroma Petrak, 1921
- Genus Phaeocytostroma Petrak, 1921
- Genus Phaeodactylella Udaiyan, 1992
- Genus Phaeodactylium V. Agnihothrudu, 1968
- Genus Phaeodiscula G. Cuboni, 1891
- Genus Phaeodochium M.L. Farr, 1968 accepted as Hymenopsis P.A. Saccardo, 1886
- Genus Phaeodomus F. von Höhnel, 1909
- Genus Phaeodothiopsis Theissen & H. Sydow, 1914
- Genus Phaeohendersonia F. von Höhnel, 1918
- Genus Phaeohiratsukaea S. Udagawa & T. Iwatsu, 1990
- Genus Phaeohymenula Petrak, 1954
- Genus Phaeoidiomyces D. Dornelo-Silva & J.C. Dianese, 2004
- Genus Phaeoisaria F. von Höhnel, 1909
- Genus Phaeolabrella Spegazzini, 1912
- Genus Phaeomarssonia Bubák, 1915 accepted as Didymosporina F. von Höhnel, 1916
- Genus Phaeomarssonia Spegazzini, 1908
- Genus Phaeomonilia R.F. Castañeda, Heredia & R.M. Arias, 2007
- Genus Phaeomonostichella Keissler ex Petrak, 1941
- Genus Phaeophloeosporella P.W. Crous & B.C. Sutton, 1997
- Genus Phaeophomopsis F. von Höhnel in Weese, 1925
- Genus Phaeopolynema Spegazzini, 1912 accepted as Hymenopsis P.A. Saccardo, 1886
- Genus Phaeorobillarda A.C. Batista & J. Bezerra, 1961 accepted as Robillarda P.A. Saccardo, 1882
- Genus Phaeosphaera A.C. Batista & R. Ciferri, 1963
- Genus Phaeosporobolus D.L. Hawksworth & J. Hafellner, 1986
- Genus Phaeothyrium Petrak, 1947
- Genus Phaeotrichoconis C.V. Subramanian, 1956
- Genus Phaeoxyphium A.C. Batista & R. Ciferri, 1963
- Genus Phaeoxyphium Batista & J.L. Bezerra, 1960
- Genus Phanerocorynella F. von Höhnel in Falck, 1923 accepted as Exosporiella P. Karsten, 1892
- Genus Phellostroma H. Sydow & P. Sydow, 1914
- Genus Phialea (E.M. Fries) Gillet, 1879
- Genus Phialetea A.C. Batista & Nascimento, 1960 accepted as Grallomyces F.L. Stevens, 1918
- Genus Phialicorona Subramanian, 1993 accepted as Kionochaeta P.M. Kirk & B.C. Sutton, 1986
- Genus Phialisphaera Dumortier, 1822
- Genus Phialoarthrobotryum T. Matsushima, 1975
- Genus Phialocorona C.V. Subramanian, 1995 accepted as Kionochaeta P.M. Kirk & B.C. Sutton, 1986
- Genus Phialogangliospora Udaiyan & V.S. Hosagoudar, 1992
- Genus Phialophaeoisaria T. Matsushima, 1995
- Genus Phialophorophoma Linder, 1944
- Genus Phialoselanospora Udaiyan, 1992
- Genus Phialostele F.C. Deighton, 1969
- Genus Phialotubus R.Y. Roy & K.M. Leelavathy, 1966
- Genus Phloeoconis E.M. Fries, 1849
- Genus Phloeosporina F. von Höhnel, 1924
- Genus Phlyctaeniella Petrak, 1922
- Genus Phomachora Petrak & H. Sydow, 1925
- Genus Phomachorella Petrak, 1947
- Genus Phomyces F.E. Clements in F.E. Clements & Shear, 1931
- Genus Phragmocephala E.W. Mason & S. Hughes, 1951
- Genus Phragmoconidium G.F. Sepúlveda, R.C. Pereira-Carvalho & J.C. Dianese, 2009
- Genus Phragmodochium F. von Höhnel, 1924
- Genus Phragmogloeum Petrak, 1954
- Genus Phragmographium E.F. Morris, 1966 accepted as Morrisographium M. Morelet, 1968
- Genus Phragmopeltis Hennings, 1904
- Genus Phragmospathula C.V. Subramanian & N.G. Nair, 1966
- Genus Phragmospathulella J. Mena Portales & Á. Mercado Sierra, 1987
- Genus Phragmosporonema Moesz, 1924 accepted as Diplosporonema F. von Höhnel, 1917
- Genus Phragmostachys Costantin, 1888 accepted as Sterigmatobotrys Oudemans, 1886
- Genus Phragmostilbe Subramanian, 1959 accepted as Arthrosporium P.A. Saccardo, 1880
- Genus Phragmotrichum G. Kunze, 1823
- Genus Phthora d'Hérelle, 1909
- Genus Phyllocelis H. Sydow, 1925
- Genus Phylloedia E.M. Fries, 1849 accepted as Phylloedium E.M. Fries, 1825
- Genus Phylloedium E.M. Fries, 1825
- Genus Phyllohendersonia Tassi, 1902
- Genus Phylloporina C.W. Dodge, 1948
- Genus Phymatostroma Corda, 1837 accepted as Leucosporium Corda in Sturm, 1833
- Genus Physalidiella Rulamort, 1990
- Genus Physalidiopsis R.F. Castañeda Ruiz & W.B. Kendrick, 1990
- Genus Physalidium Mosca, 1965 accepted as Physalidiella Rulamort, 1990
- Genus Physalosporella Spegazzini, 1910
- Genus Physospora E.M. Fries, 1835 accepted as Rhinotrichum Corda, 1837
- Genus Pileomyces K.-L. Pang & J.-S. Jheng, 2012
- Genus Pilulina Arnaud, 1954
- Genus Pimina W.B. Grove, 1888 accepted as Zygosporium C. Montagne in Sagra, 1838-1842
- Genus Pinatubo J.B. Manandhar T.W. Mew, 1996
- Genus Piperivora Siboe, P.M. Kirk & P.F. Cannon, 1999
- Genus Piptostoma M.J. Berkeley & Broome, 1873 accepted as Piptostomum Léveillé, 1845
- Genus Piptostomum Léveillé, 1845
- Genus Piptostroma E.M. Fries, 1849 accepted as Piptostomum Léveillé, 1845
- Genus Piricauda Bubák, 1914
- Genus Piricaudilium V. Holubová-Jechová, 1988
- Genus Piricaudiopsis J. Mena Portales & A. Mercado Sierra, 1987
- Genus Pirispora L. Faurel & G. Schotter, 1966
- Genus Pirostoma (E.M. Fries) Fuckel, 1870
- Genus Pirostoma (E.M. Fries) Saccardo, 1896
- Genus Pirostomella P.A. Saccardo, 1914
- Genus Pirozynskiella S.J. Hughes, 2007
- Genus Pithosira Petrak, 1949
- Genus Pitostroma T. Kowalski & T.N. Sieber, 1992
- Genus Pittostroma T. Kowalski & T.N. Sieber, 1992
- Genus Placella H. Sydow, 1938
- Genus Placentaria Auerswald ex Rabenhorst, 1851 accepted as Periola E.M. Fries, 1822
- Genus Placodiplodia Bubák, 1916
- Genus Placodothis H. Sydow, 1928
- Genus Placonema (Saccardo) Petrak, 1921
- Genus Placonemina Petrak, 1921
- Genus Placosphaerella Patouillard, 1897
- Genus Placosphaerina Maire, 1917
- Genus Placothea H. Sydow, 1931
- Genus Placothyrium Bubák, 1916
- Genus Plagiorhabdus Shear, 1907 accepted as Strasseria G. Bresadola & P.A. Saccardo, 1902
- Genus Plagiostigmella Petrak, 1949
- Genus Platycarpium P.A. Karsten, 1905 accepted as Fusamen (P.A. Saccardo) P.A. Karsten, 1890
- Genus Platysphaera Dumortier, 1822
- Genus Plecothrix C.L. Shear, 1902 accepted as Plectrothrix C.L. Shear, 1902
- Genus Plecotrichum Corda in Sturm, 1831
- Genus Plectonaemella F. von Höhnel, 1915
- Genus Plectopeltis H. Sydow, 1927
- Genus Plectophomella Moesz, 1922
- Genus Plectophomopsis Petrak, 1922
- Genus Plectopycnis A.C. Batista & A.F. Vital, 1959 accepted as Plectopeltis H. Sydow, 1927
- Genus Plectosira Petrak, 1929
- Genus Plectronidiopsis T.R. Nag Raj, 1979
- Genus Plectronidium T.R. Nag Raj, 1977
- Genus Plectrothrix C.L. Shear, 1902
- Genus Pleiochaeta (P.A. Saccardo) S.J. Hughes, 1951
- Genus Plenocatenulis Batista & Ciferri, 1959
- Genus Plenophysa H. Sydow & P. Sydow, 1920
- Genus Plenotrichaius A.C. Batista & R.C. Valle, 1961
- Genus Plenotrichella A.C. Batista & A.F. Vital, 1959 accepted as Myxothyriopsis Batista & A.F. Vital, 1956
- Genus Plenotrichopsis A.C. Batista in A.C. Batista & H.S. Maia, 1961
- Genus Plenotrichum H. Sydow, 1927
- Genus Plenozythia H. Sydow in H. Sydow et al., 1916
- Genus Pleococcum Desmazières & Montagne, 1849
- Genus Pleocouturea G. Arnaud, 1911
- Genus Pleocyta F. Petrak & H. Sydow, 1927 accepted as Phaeocytostroma Petrak, 1921
- Genus Pleosphaeria Spegazzini, 1881
- Genus Pleosphaeropsis (Diedicke) Petrak & Sydow, 1926
- Genus Plesiospora C. Drechsler, 1971
- Genus Pleurodesmospora R.A. Samson, W. Gams & H.C. Evans, 1979
- Genus Pleurodiscula F. von Höhnel in Weese, 1926
- Genus Pleurodiscus Petrak, 1931
- Genus Pleurodomus Petrak, 1934
- Genus Pleuropedium L. Marvanova & S.H. Iqbal, 1973
- Genus Pleurophoma F. von Höhnel, 1914
- Genus Pleurophragmium Costantin, 1888
- Genus Pleuroplaconema Petrak, 1923
- Genus Pleuroplacosphaeria H. Sydow, 1928
- Genus Pleuropyxis Corda, 1837
- Genus Pleurotheciopsis B.C. Sutton, 1973
- Genus Pleurothyriella Petrak & H. Sydow, 1925
- Genus Pleurothyrium Bubák, 1916
- Genus Pleurovularia R. Kirschner & U. Braun in R. Kirschner et al., 2002
- Genus Pluesia Nieuwland, 1916 accepted as Maurya Patouillard, 1898
- Genus Pocillopycnis B.J. Dyko & B.C. Sutton, 1979
- Genus Podobactridium Penzig & P.A. Saccardo ex Petch, 1916 accepted as Bactridium Kunze, 1817
- Genus Podocapsa Van Tieghem, 1887
- Genus Podocapsium F.E. Clements, 1909 accepted as Podocapsa Van Tieghem, 1887
- Genus Podosporiella J.B. Ellis & Everhart, 1894
- Genus Podosporium Schweinitz, 1832
- Genus Podoxyphiomyces A. Batista, R.C. Valle & G.E.P. Peres, 1961
- Genus Podoxyphium Spegazzini, 1918 accepted as Conidiocarpus Woronichin, 1926
- Genus Poikilosperma A.C. Batista & J.L. Bezerra, 1961
- Genus Polybulbophiale T.-K. Goh & K.D. Hyde, 1998
- Genus Polycladium C.T. Ingold, 1959
- Genus Polydesmus Montagne, 1845
- Genus Polyetron A.C. Batista & G.E.P. Peres, 1963
- Genus Polyhyphaethyrites R. Srivastava & R.K. Kar, 2004 †
- Genus Polylobatispora T. Matsushima, 1996
- Genus Polyrostrata T.P. Devi & N. Mathur, 2009
- Genus Polyschema H.P. Upadhyay, 1966
- Genus Polyscytalina Arnaud, 1954
- Genus Polyscytalum H. Riess, 1853
- Genus Polystomellomyces A.C. Batista, 1959
- Genus Polystratorictus T. Matsushima, 1993
- Genus Polysynnema O. Constantinescu & K.A. Seifert, 1988
- Genus Polythrinciella A.C. Batista & H.S. Maia, 1960
- Genus Polythrinciopsis J. Walker, 1966
- Genus Polytretophora A. Mercado, 1983
- Genus Porobeltraniella P. Gusmão in L. Fernando & P. Gusmão, 2004
- Genus Porocladium E. Descals in E. Descals et al., 1976
- Genus Porodiscus C.G. Lloyd, 1919
- Genus Poroisariopsis M. Morelet, 1971
- Genus Poropeltis Hennings, 1904
- Genus Porophilomyces U. Braun, 2000
- Genus Porosphaera Dumortier, 1822
- Genus Porosubramaniania Holubová-Jechová, 1985
- Genus Porrectotheca T. Matsushima, 1996
- Genus Posariopsis M. Morelet, 1971 accepted as Poroisariopsis M. Morelet, 1971
- Genus Potteromyces C. Strullu-Derrien & D.L. Hawksworth in Strullu-Derrien et al., 2023 †
- Genus Powellia A.C. Batista & G.E.P. Peres, 1964
- Genus Prathigada Subramanian in Subramanian & Ramakrishnan, 1956
- Genus Preussiaster O. Kuntze, 1891 accepted as Cordana Preuss, 1851
- Genus Prismaria Preuss, 1851
- Genus Proboscispora E. Punithalingam, 1984
- Genus Proliferosphaera T.P. Devi in Devi, Mathur, Kamil & Prabhakaran, 2012
- Genus Prophytroma Sorokin, 1877
- Genus Prosthemiella P.A. Saccardo, 1881
- Genus Protascus Van der Wolk, 1913 accepted as Wolkia J. Ramsbottom, 1915
- Genus Protostegia M.C. Cooke, 1880
- Genus Protostegiomyces Batista & Vital in Batista et al., 1955
- Genus Protostroma Batista, 1957
- Genus Psammina P.A. Saccardo & M. Rousseau ex E. Bommer & M. Rousseau, 1891
- Genus Pseuderiospora F. Petrak, 1959 accepted as Suttoniella S. Ahmad, 1961
- Genus Pseuderiospora K. Keissler, 1924 accepted as Eriosporella F. von Höhnel, 1916
- Genus Pseudoacrodictys W.A. Baker & Morgan-Jones, 2003
- Genus Pseudoanguillospora S.H. Iqbal, 1974
- Genus Pseudoaristastoma S. Singh, 1979
- Genus Pseudoasperisporium U. Braun, 2000
- Genus Pseudobasidiospora B.J. Dyko & B.C. Sutton, 1978
- Genus Pseudobeltrania P.C. Hennings, 1902
- Genus Pseudocamptoum Gonz. Fragoso & Ciferri, 1925 accepted as Melanographium P.A. Saccardo, 1913
- Genus Pseudocanalisporium R.F. Castañeda Ruiz & W.B. Kendrick, 1991
- Genus Pseudocenangium P.A. Karsten, 1886
- Genus Pseudochuppia Kamal, A.N. Rai & G. Morgan-Jones, 1984
- Genus Pseudoclathrosphaerina H. Voglmayr in H. Voglmayr & I. Krisai-Greilhuber, 1997
- Genus Pseudoconium F. Petrak, 1969
- Genus Pseudocytoplacosphaeria E. Punithalingam & B.M. Spooner, 2002
- Genus Pseudocytospora Petrak, 1923
- Genus Pseudodichomera F. von Höhnel, 1918
- Genus Pseudodictya L.R. Tehon & G.L. Stout, 1929
- Genus Pseudodidymaria U. Braun, 1993
- Genus Pseudodiplodia (P.A. Karsten) P.A. Saccardo, 1884
- Genus Pseudodiscula R. Laubert, 1911
- Genus Pseudoepicoccum M.B. Ellis, 1971
- Genus Pseudoeurotium
- Genus Pseudofumago Briosi & Farneti, 1906
- Genus Pseudofuscophialis A. Sivanesan & H.S. Chang, 1995
- Genus Pseudogaster F. von Höhnel, 1907
- Genus Pseudographiella E.F. Morris, 1966
- Genus Pseudographium von Höhnel, 1915
- Genus Pseudohansfordia G.R.W. Arnold, 1970
- Genus Pseudohansfordia S.M. Reddy & K.S. Bilgrami, 1970
- Genus Pseudohendersonia P.W. Crous & M.E. Palm, 1999
- Genus Pseudohepatica P.M. Jørgensen, 1993
- Genus Pseudolasmeniella Petrak & Sydow, 1927
- Genus Pseudoneottiospora L. Faurel & G. Schotter, 1965
- Genus Pseudopapulaspora N.D. Sharma, 1977
- Genus Pseudopatellina F. von Höhnel, 1908
- Genus Pseudopeltistroma K. Katumoto, 1975
- Genus Pseudoperitheca Elenkin, 1922
- Genus Pseudopetrakia M.B. Ellis, 1971
- Genus Pseudopezizites M. Fiore, 1932 †
- Genus Pseudophloeosporella U. Braun, 1993
- Genus Pseudophoma F. von Höhnel, 1916 accepted as Chaetosphaeronema Moesz, 1915
- Genus Pseudophragmotrichum W.P. Wu, B.C. Sutton & A.C. Gange, 1998
- Genus Pseudophyllachora Spegazzini, 1919
- Genus Pseudopolystigmina Murashkinski, 1928
- Genus Pseudoprotomyces Gibelli, 1874 accepted as Phloeoconis E.M. Fries, 1849
- Genus Pseudoramularia T. Matsushima, 1983
- Genus Pseudorhizopogon Y. Kobayasi, 1983
- Genus Pseudorobillarda Nag Raj, Morgan-Jones & W.B. Kendrick, 1972 accepted as Pseudorobillarda M. Morelet, 1968
- Genus Pseudosaccharomyces Briosi & Farneti, 1906
- Genus Pseudoschizothyra E. Punithalingam in E. Punithalingam & N.D. Sharma, 1980
- Genus Pseudoseptoria Spegazzini, 1910
- Genus Pseudosigmoidea K. Ando & N. Nakamura, 2000
- Genus Pseudosphaerialites B.S. Venkatachala & R.K. Kar, 1969 †
- Genus Pseudostegia Bubák, 1906
- Genus Pseudostilbella M. Muntañola-Cvetkovic & A. Gómez-Bolea, 1995
- Genus Pseudostracoderma A.E. Martinez & A.M. Godeas, 1997
- Genus Pseudothyrium F. von Höhnel in Weese, 1927
- Genus Pseudotorula C.V. Subramanian, 1958
- Genus Pseudotracylla B.C. Sutton & C.S. Hodges, 1976
- Genus Pseudotrichoconis W.A. Baker & Morgan-Jones, 2001
- Genus Pseudoveronaea P.W. Crous & J.C. Batzer in Li, Sun, Zhai, Batzer, Mayfield, Crous, Groenewald & Gleason, 2012
- Genus Pseudozythia F. von Höhnel, 1902
- Genus Psilosphaeria M.C. Cooke, 1879
- Genus Pteropus R.W. Ham, 2005
- Genus Pterulopsis Wakefield & Hansford, 1943
- Genus Pterygosporopsis P.M. Kirk, 1983
- Genus Pucciniopsis Spegazzini, 1888
- Genus Pucciniospora Spegazzini, 1886
- Genus Pulchromyces G.L. Hennebert, 1973
- Genus Pullospora L. Faurel & G. Schotter, 1965
- Genus Pulvinaria Bonorden, 1851
- Genus Pulvinaria L. Rodway, 1918 accepted as Waydora B.C. Sutton in B.C. Sutton et al., 1976
- Genus Pulvinella A.W. Ramaley, 2001
- Genus Pulvinotrichum I.J. Gamundí, A.M. Arambarri & A.L. Giaiotti in A.M. Arambarri et al., 1981
- Genus Pumilus Viala & Marsais, 1934
- Genus Punctillina R.A. Toro, 1934
- Genus Pustularia Bonorden, 1851
- Genus Pycnidioarxiella E. Punithalingam & N.D. Sharma, 1980
- Genus Pycnidiopeltis Batista & C.A.A. Costa, 1959
- Genus Pycnidiostroma F.L. Stevens, 1927 accepted as Phomachora Petrak & H. Sydow, 1925
- Genus Pycnis Brefeld, 1881
- Genus Pycnodactylus Batista, A.A. Silva & Cavalcante, 1967
- Genus Pycnodallia J. Kohlmeyer & B. Volkmann-Kohlmeyer, 2001
- Genus Pycnoharknessia T. Matsushima, 1996
- Genus Pycnomma H. Sydow in H. Sydow & Werdermann, 1924
- Genus Pycnomoreletia Rulamort, 1990
- Genus Pycnopleiospora C.Z. Wei, Y. Harada & K. Katumoto, 1997
- Genus Pycnopsammina P. Diederich & J. Etayo in F.J.A. Daniels et al., 1995
- Genus Pycnorostrum Golovin, 1950
- Genus Pycnoseynesia O. Kuntze, 1898
- Genus Pycnosporium Siegel, 1909
- Genus Pycnostemma H. Sydow, 1927 accepted as Poropeltis Hennings, 1904
- Genus Pycnothera N.D. Sharma & G.P. Agarwal, 1974
- Genus Pycnothyriella A.C. Batista, 1952
- Genus Pycnothyrium Diedicke, 1913
- Genus Pyramidospora S. Nilsson, 1962
- Genus Pyrenochaetella P. Karsten ex von Höhnel, 1917
- Genus Pyrenyllium Clements, 1909
- Genus Pyrgostroma Petrak, 1951
- Genus Pyriculariopsis M.B. Ellis, 1971
- Genus Pyrigemmula D. Magyar & R. Shoemaker, 2010
- Genus Pyripnomyces Cavalcante in Cavalcante et al., 1972
- Genus Quadracaea D. Lunghini, F. Pinzari & L. Zucconi, 1996
- Genus Quadricladium A. Nawawi & A.J. Kuthubutheen, 1989
- Genus Quasidiscus B.C. Sutton, 1991
- Genus Queenslandia Batista & H. Maia, 1959
- Genus Quezelia L. Faurel & G. Schotter, 1965
- Genus Rabdosporium Chevallier, 1826 accepted as Cheirospora Mougeot & E.M. Fries, 1825
- Genus Racoleus R. Santesson & D.L. Hawksworth, 2011
- Genus Radaisiella Bainier, 1910 accepted as Botryosporium Corda in J. Sturm, 1831
- Genus Radiatispora T. Matsushima, 1995
- Genus Radiciseta K. Sawada & S. Katsuki in R. Imazeki et al., 1959
- Genus Radulidium M. Arzanlou, W. Gams & P.W. Crous, 2007
- Genus Raizadenia S.L. Srivastava, 1981
- Genus Ramakrishnanella Kamat & Ullasa ex Ullasa, 1970
- Genus Ramaraomyces N.K. Rao, C. Manoharachary & R.D. Goos, 1989
- Genus Ramicapitulum S.R. Whitton, K.D. Hyde & E.H.C. McKenzie in Whitton, McKenzie & Hyde, 2012
- Genus Ramicephala Voglmayr & Delgado-Rodríguez, 2003
- Genus Ramoacrodictys G.Z. Zhao in Zhao, Tian & Liu, 2010 accepted as Bhatia W.A. Baker & G.A. Morgan-Jones in Gams, Seifert & Morgan-Jones, 2009
- Genus Ramoconidiifera B.C. Sutton, C.C. Carmarán & A.I. Romero, 1996
- Genus Ramulaspera J.I. Lindroth, 1902
- Genus Ranojevicia Bubák in Ranojevic, 1910
- Genus Ratnagiriathyrites R.K. Saxena & N.K. Misra, 1990 †
- Genus Redbia F.C. Deighton & K.A. Pirozynski, 1972
- Genus Refractohilum D.L. Hawksworth, 1977
- Genus Reichlingia Diederich & Scheidegger, 1996
- Genus Remersonia R.A. Samson & K.A. Seifert, 1997
- Genus Repetoblastiella R.F. Castañeda Ruiz, D.W. Minter & M. Stadler, 2010
- Genus Retiarius D.L. Olivier, 1978
- Genus Retroconis G.S. de Hoog & W.H. Batenburg-van der Vegte, 1989
- Genus Rhabdoclema H. Sydow, 1939
- Genus Rhabdogloeopsis Petrak, 1925
- Genus Rhabdomyces Balbiani, 1889
- Genus Rhabdostromella F. von Höhnel, 1915
- Genus Rhabdostromellina F. von Höhnel, 1917 accepted as Coleophoma F. von Höhnel, 1907
- Genus Rhabdostromina Diedicke, 1921 accepted as Coleophoma F. von Höhnel, 1907
- Genus Rhabdothyrella F. von Höhnel, 1917 accepted as Leptothyrium G. Kunze in G. Kunze & J.K. Schmidt, 1823
- Genus Rhabdothyrium F. von Höhnel, 1915 accepted as Leptothyrium G. Kunze in G. Kunze & J.K. Schmidt, 1823
- Genus Rhacodium Persoon ex Wallroth, 1833
- Genus Rhamphosphaeria Kirschstein, 1936
- Genus Rhexoacrodictys W.A. Baker & Morgan-Jones, 2002
- Genus Rhexoampullifera P.M. Kirk, 1982
- Genus Rhexodenticula W.A. Baker & Morgan-Jones, 2001
- Genus Rhexoprolifer T. Matsushima, 1996
- Genus Rhinocladium Saccardo & Marchal, 1885
- Genus Rhinotrichella G. Arnaud ex G.S. de Hoog, 1977
- Genus Rhinotrichum Corda, 1837
- Genus Rhipidocephalum Trail, 1888
- Genus Rhizohypha R. Chodat & Sigriansky, 1911
- Genus Rhizophila K.D. Hyde & E.B.G. Jones, 1989
- Genus Rhizosphaerina B.C. Sutton, 1986
- Genus Rhizosporium L. Rabenhorst, 1844 accepted as Phloeoconis E.M. Fries, 1849
- Genus Rhizostroma E.M. Fries, 1819
- Genus Rhodesiopsis B.C. Sutton & R. Campbell, 1979?
- Genus Rhodothallus A.C. Batista & Ciferri, 1959
- Genus Rhombostilbella A. Zimmermann, 1902
- Genus Rhopographella (Hennings) P.A. Saccardo & Trotter, 1913
- Genus Rhynchnostrigula Batista, J.L. Bezerra & Cavalcante
- Genus Rhynchodiplodia Briosi & Farneti, 1906
- Genus Rhynchomyces Willkomm, 1866
- Genus Rhynchophorus Hollós, 1926 accepted as Ceratopycnis F. von Höhnel, 1915
- Genus Rhynchoseptoria Unamuno, 1940
- Genus Rhynchosphaeria (P.A. Saccardo) Berlese, 1891
- Genus Rhynchosporina J.A. von Arx, 1957
- Genus Rhyncomeliola Spegazzini, 1884
- Genus Riccoa Cavara, 1903 accepted as Heydenia Fresenius, 1852
- Genus Riclaretia Peyronel, 1915
- Genus Rileya A. Funk, 1979
- Genus Riomyces A. Ferrer, A.N. Miller, C. Sarmiento & C.A. Shearer, 2012
- Genus Robakia Petrak, 1952
- Genus Robillarda P.A. Saccardo, 1882
- Genus Rogergoosiella A. Hernández-Gutiérrez & J. Mena Portales, 1996
- Genus Roigiella R.F. Castañeda, 1984
- Genus Romellina Petrak, 1955
- Genus Roscoepoundia O. Kuntze, 1898
- Genus Rosulomyces S. Marchand & D. Cabral in S. Marchand et al., 1976
- Genus Rota Batista, Ciferri & Nascimento, 1959
- Genus Rotaea Cesati ex Schlechtendal, 1851
- Genus Rubikia H.C. Evans & D.W. Minter, 1985
- Genus Ruggieria Ciferri & Montemartini, 1958
- Genus Rugonectria P. Chaverri & G.J. Samuels, 2011
- Genus Rupinia Spegazzini & Roumeguère, 1879 accepted as Heydenia Fresenius, 1852
- Genus Saccardaea Cavara, 1894
- Genus Sachsia P. Lindner, 1895
- Genus Sadasivanella V. Agnihothrudu, 1964 accepted as Neottiosporina Subramanian, 1961
- Genus Sadasivania C.V. Subramanian, 1957
- Genus Sagrahamala C.V. Subramanian, 1972
- Genus Saliastrum Kujala, 1946
- Genus Samarosporella Linder, 1944
- Genus Samukuta C.V. Subramanian & K. Ramakrishnan, 1957 accepted as Neottiospora Desmazières, 1843
- Genus Sanjuanomyces R.F. Castañeda Ruiz & W.B. Kendrick, 1991
- Genus Santapauinda C.V. Subramanian, 1994
- Genus Saprophragma K.B. Deshpande & K.S. Deshpande, 1966
- Genus Saprotaphrina Verona & Rambelli, 1962
- Genus Sarbhoyomyces U.N. Saikia, 1981
- Genus Sarcinodochium F. von Höhnel, 1905
- Genus Sarcinomyces O. Oho in Ota, 1926 accepted as Sarcinosporon D.S. King & S.C. Jong, 1975
- Genus Sarcinosporon D.S. King & S.C. Jong, 1975
- Genus Sarcocypha
- Genus Sarcopodium Ehrenberg ex A.T. Brongniart in F. Cuvier, 1824
- Genus Sartorya Vuillemin, 1927
- Genus Satchmopsis B.C. Sutton & C.S. Hodges in B.C. Sutton, 1975
- Genus Sativumoides S.C. Ren, J. Ma & X.G. Zhang, 2010
- Genus Sawantomyces R. Dubey & N.A. Moonnambeth, 2013
- Genus Scaphidium F.E. Clements, 1901
- Genus Scenomyces F.L. Stevens, 1927
- Genus Sceptrifera Deighton, 1965
- Genus Scharifia Petrak, 1955
- Genus Schizoderma G. Kunze, 1825
- Genus Schizodiplodia C. Zambettakis, 1955 accepted as Didymosporiella Traverso & Migliardi, 1911
- Genus Schizothyra Batista & C.A.A. Costa in Batista et al., 1957
- Genus Schizothyrella Thümen, 1880
- Genus Schizothyropsis A.C. Batista & Vital in A.C. Batista & J.A. Lima, 1960
- Genus Schizotrichum McAlpine, 1903
- Genus Schoenbornia Bubák, 1906 accepted as Hymenopsis P.A. Saccardo, 1886
- Genus Schroeteria G. Winter, 1881
- Genus Schwarzmannia Pisareva, 1968
- Genus Scirrhophoma Petrak, 1941
- Genus Sclerochaeta F. von Höhnel, 1917 accepted as Chaetopyrena Passerini in De Notaris, 1881
- Genus Sclerochaetella F. von Höhnel, 1917 accepted as Diploplenodomus Diedicke, 1912
- Genus Sclerococcum E.M. Fries, 1825
- Genus Scleroconium H. Sydow, 1935
- Genus Sclerodiscus N. Patouillard, 1890
- Genus Sclerodothiorella Diedicke, 1912
- Genus Sclerographiopsis F.C. Deighton, 1973
- Genus Sclerographium M.J. Berkeley, 1854
- Genus Scleromeris H. Sydow, 1926
- Genus Scleroparodia Petrak, 1934 accepted as Ascochytopsis Hennings, 1905
- Genus Scleropycnis H. Sydow & P. Sydow, 1911
- Genus Sclerosphaeropsis Bubák, 1914
- Genus Sclerotiella A.K. Sarbhoy & A. Sarbhoy, 1975
- Genus Sclerozythia Petch in W.B. Grove, 1937
- Genus Scolecobasis Clements & Shear, 1931 accepted as Scolecobasidium E.V. Abbott, 1927
- Genus Scolecobeltrania T. Iturriaga, R.F. Castañeda-Ruiz & R. Fernández in Iturriaga, Fernández, Castañeda-Ruiz, Minter & Cruz, 2013
- Genus Scolecodochium K. Matsushima & T. Matsushima, 1996
- Genus Scolecopeltidella J.M. Mendoza, 1925
- Genus Scolecotheca U. Søchting & B.C. Sutton, 1997
- Genus Scolecozythia Curzi in Curzi & Barbaini, 1927
- Genus Scolicotrichum G. Kunze, 1817
- Genus Scoliocarpon W. Nylander, 1858
- Genus Scoliotidium A.C. Batista & W.A. Cavalcanti in A. Batista et al., 1963
- Genus Scopaphoma J. Dearness & H. House, 1925
- Genus Scopula Arnaud, 1952 accepted as Gloiosphaera F. von Höhnel, 1902
- Genus Scopularia Preuss, 1851
- Genus Scopulariella Gjaerum, 1971
- Genus Scorpiosporium S.H. Iqbal, 1974
- Genus Scothelius A.C. Batista, J.L. Bezerra & W.A. Cavalcanti in A.C. Batista & W.A. Cavalcanti, 1965
- Genus Scotiosphaeria A. Sivanesan, 1977
- Genus Scutisporus K. Ando & K. Tubaki, 1985
- Genus Scutopeltis Batista & Maia in Batista et al., 1957
- Genus Scutopycnis Batista in Batista & Vital, 1957
- Genus Scyphostroma K. Starbäck, 1899 accepted as Subicularium M.L. Farr & R.D. Goos, 1989
- Genus Searchomyces B.S. Mehrotra & M.D. Mehrotra, 1963 accepted as Amblyosporium Fresenius, 1863
- Genus Sedecimiella K.L. Pang, S.A. Alias & E.B.G. Jones, 2010
- Genus Seifertia E.C. Partridge & G. Margan-Jones, 2002
- Genus Seimatosporiella B.A. Abbas, B.C. Sutton & A. Ghaffar, 1998
- Genus Seimatosporiopsis B.C. Sutton, A. Ghaffar & S.Q. Abbas, 1972
- Genus Seiridiella P.A. Karsten, 1890 accepted as Phragmotrichum G. Kunze, 1823
- Genus Selenosira Petrak, 1957
- Genus Selenosporopsis R.F. Castañeda Ruiz & W.B. Kendrick, 1991
- Genus Septochora von Höhnel, 1917 accepted as Helhonia B.C. Sutton, 1980?
- Genus Septocyta Petrak, 1927
- Genus Septocytella H. Sydow, 1929
- Genus Septodochium Matsushima, 1971
- Genus Septodothideopsis Hennings, 1904
- Genus Septoglaeum P.A. Saccardo, 1880
- Genus Septogloeum P.A. Saccardo, 1880
- Genus Septomyxella F. von Höhnel in Falck, 1923
- Genus Septopatella Petrak, 1925
- Genus Septorella Berkeley
- Genus Septoria E.M. Fries, 1819
- Genus Septoriopsis F. von Höhnel, 1920 accepted as Groveolopsis Boedijn, 1951
- Genus Septosporiopsis W.A. Baker & G.A. Morgan-Jones in Gams, Seifert & Morgan-Jones, 2009
- Genus Septosporium Corda in J. Sturm, 1831
- Genus Septothyrella F. von Höhnel, 1911
- Genus Septotrullula F. von Höhnel, 1902
- Genus Seriella E.M. Fries, 1849
- Genus Sessiliospora D.L. Hawksworth, 1979
- Genus Setolibertella E. Punithalingam & B.M. Spooner, 1999
- Genus Setophiale T. Matsushima, 1995
- Genus Setophoma J. de Gruyter, M.M. Aveskamp & G.J.M. Verkley, 2010
- Genus Setosporella Mustafa & Abdul-Wahid, 1989
- Genus Seychellomyces T. Matsushima, 1981
- Genus Seynesiopsis Hennings, 1904
- Genus Shawiella Hansford, 1957
- Genus Sheariella Petrak, 1952
- Genus Shecutia Nieuwland, 1916 accepted as Libertiella Spegazzini & Roumeguère in Roumeguère, 1880
- Genus Shomea A.C. Batista & Bezerra in A.C. Batista & Cavalcanti, 1964 accepted as Geastrumia A.C. Batista in A.C. Batista, M.L. Farr & Bezerra, 1960
- Genus Shrungabeeja V.G. Rao & K.A.N. Reddy, 1981
- Genus Siamia V. Robert, C. Decock & R.F. Castañeda Ruiz, 2000
- Genus Sigmatomyces P.A. Saccardo & P. Sydow, 1913
- Genus Sinotrichium J. Wang, S.Q. Xu & D.B. Strongman, 2010
- Genus Sirexcipula Bubák, 1907
- Genus Sirocyphis F.E. Clements, 1909
- Genus Sirodochiella F. von Höhnel in Weese, 1925
- Genus Sirodomus F. Petrak, 1947 accepted as Sirexcipula Bubák, 1907
- Genus Sirogloea Petrak, 1923
- Genus Siroligniella H.A. Naumov, 1926
- Genus Siropatella F. von Höhnel, 1903
- Genus Sirophoma F. von Höhnel, 1917
- Genus Siroplacodium Petrak in K.H. Rechinger et al., 1939
- Genus Siropleura Petrak, 1934
- Genus Siroscyphella F. von Höhnel, 1910 accepted as Pseudocenangium P.A. Karsten, 1886
- Genus Siroscyphellina Petrak, 1923
- Genus Sirosperma H. Sydow & P. Sydow, 1916
- Genus Sirosphaera H. Sydow & P. Sydow, 1913
- Genus Sirosporonaemella N.A. Naumov, 1951
- Genus Sirostromella F. von Höhnel, 1916 accepted as Pseudodiscula R. Laubert, 1911
- Genus Sirothecium P.A. Karsten, 1887
- Genus Sirothyriella F. von Höhnel, 1910
- Genus Sirothyrium H. Sydow in H. Sydow et al., 1916
- Genus Sirozythia F. von Höhnel, 1904
- Genus Sirozythiella F. von Höhnel, 1909
- Genus Sitochora H.B.P. Upadhyay, 1964
- Genus Slimacomyces D.W. Minter, 1986
- Genus Solheimia E.F. Morris, 1967
- Genus Solicorynespora R.F. Castañeda Ruiz & W.B. Kendrick, 1990
- Genus Soliomyces K.L. Pang & J.S. Jheng, 2012
- Genus Soloacrospora W.B. Kendrick & R.F. Castaneda Ruiz in R.F. Castañeda Ruiz & W.B. Kendrick, 1991
- Genus Solosympodiella Matsushima, 1971
- Genus Soloterminospora T. Matsushima, 1996
- Genus Sopagraha C.V. Subramanian & K. Sudha, 1979 accepted as Arachnophora Hennebert, 1963
- Genus Soredospora Corda, 1837 accepted as Fumago Persoon, 1822
- Genus Spalovia J.A. Nieuwland, 1916 accepted as Spermotrichum O. Kuntze, 1898
- Genus Spegazzinia P.A. Saccardo, 1879
- Genus Spermatoloncha Spegazzini, 1908
- Genus Spermochaetella Ciferri, 1954
- Genus Spermospora R. Sprague, 1948
- Genus Spermosporella F.C. Deighton, 1969
- Genus Spermotrichum O. Kuntze, 1898
- Genus Sphaerialites B.S. Venkatachala & R.K. Kar, 1969 †
- Genus Sphaeridium Fresenius, 1852
- Genus Sphaeriostromella Bubák, 1916
- Genus Sphaeriothyrium Bubák, 1916
- Genus Sphaerocolla P.A. Karsten, 1892
- Genus Sphaerocybe Magrou & Marneffe, 1946
- Genus Sphaeromma H.B.P. Upadhyay, 1964
- Genus Sphaeromyces G. Arnaud, 1954
- Genus Sphaeromyxa K.P.J. Sprengel, 1827 accepted as Sphaeronaema E.M. Fries, 1815
- Genus Sphaeronaema E.M. Fries, 1815
- Genus Sphaeronaemina F. von Höhnel, 1917 accepted as Sphaeronaema E.M. Fries, 1815
- Genus Sphaerophoma Petrak, 1924
- Genus Sphaeropsis Léveillé in Demidov, 1842
- Genus Sphaerosporium Schweinitz, 1832
- Genus Sphaerothyrium Wallroth, 1833 accepted as Stegilla H.G.L. Reichenbach, 1829
- Genus Sphaerulomyces L. Marvanová, 1977
- Genus Spheropsis Rafinesque, 1815
- Genus Sphondylocephalum J.A. Stalpers, 1974
- Genus Spicaria P. Harting, 1846
- Genus Spicularia Persoon, 1822
- Genus Spiculostilbella E.F. Morris, 1963 accepted as Phaeoisaria F. von Höhnel, 1909
- Genus Spilomium Nylander, 1858 accepted as Sclerococcum E.M. Fries, 1825
- Genus Spilomyces F. Petrak & H. Sydow, 1927 accepted as Neottiospora Desmazières, 1843
- Genus Spinulospora F.C. Deighton, 1973
- Genus Spiralotrichum H.S. Yates, 1918
- Genus Spiralum J.L. Mulder, 1975
- Genus Spiropes R. Ciferri, 1955
- Genus Spiroplana H. Voglmayr, M.J. Park & H.D. Shin, 2011
- Genus Spirospora L. Mangin & Vincens, 1920 accepted as Acrospeira M.J. Berkeley & C.E. Broome, 1857
- Genus Spogotteria B.J. Dyko & B.C. Sutton in B.J. Dyko et al., 1979 accepted as Plectronidium T.R. Nag Raj, 1977
- Genus Spondylocladiella Linder, 1934
- Genus Spondylocladiopsis M.B. Ellis, 1963
- Genus Spondylocladium C.F.P. Martius ex P.A. Saccardo, 1880 accepted as Stachylidium Link, 1809
- Genus Sporendonema Desmazières, 1827
- Genus Sporhaplus H.B.P. Upadhyay, 1964
- Genus Sporidesmina C.V. Subramanian & D.J. Bhat, 1989 accepted as Janetia M.B. Ellis, 1976
- Genus Sporocarpon W.C. Williamson, 1878 †
- Genus Sporoctomorpha J.V. Almeida & Sousa da Câmara, 1903
- Genus Sporocystis A.P. Morgan, 1902
- Genus Sporodiniopsis F. von Höhnel, 1903
- Genus Sporodochiolichen A. Aptroot & H.J.M. Sipman, 2011
- Genus Sporoglena P.A. Saccardo, 1894
- Genus Sporophiala P. Rag. Rao, 1970
- Genus Sporophora Luteraan, 1952
- Genus Sporostachys P.A. Saccardo, 1919 accepted as Melanographium P.A. Saccardo, 1913
- Genus Sporotretophora S.R. Whitton, K.D. Hyde & E.H.C. McKenzie in Whitton, McKenzie & Hyde, 2012
- Genus Stachybotryella J.B. Ellis & Bartholomew, 1902
- Genus Stachybotryna K. Tubaki & T. Yokoyama, 1971
- Genus Stachycoremium K.A. Seifert, 1986
- Genus Stachylidium Link, 1809
- Genus Stagonopatella Petrak, 1927
- Genus Stagonopsis P.A. Saccardo, 1884
- Genus Stagonosporina Tassi, 1902
- Genus Stagonostromella F. Petrak & H. Sydow, 1927
- Genus Staheliella J.H. van Emden, 1974
- Genus Stalagmochaetia R. Ciferri & A.C. Batista in A.C. Batista & R. Ciferri, 1963
- Genus Staphylotrichum J. Meyer & Nicot, 1957
- Genus Stauriella Sivichai & E.B.G. Jones, 2004
- Genus Staurochaeta P.A. Saccardo, 1875 accepted as Staurophoma F. von Höhnel, 1907
- Genus Stauromyca R. Kar, B.D. Mandaokar & R.K. Kar, 2009 †
- Genus Stauronematopsis S.Q. Abbas, B.C. Sutton & A. Ghaffar, 2002
- Genus Staurophoma F. von Höhnel, 1907
- Genus Stearophora L. Mangin & P. Viala, 1905
- Genus Stegia E.M. Fries, 1818 accepted as Stegilla H.G.L. Reichenbach, 1829
- Genus Stegilla H.G.L. Reichenbach, 1829
- Genus Stegolerium G. Strobel, W.M. Hess & E.J. Ford in G. Strobel et al., 2001
- Genus Stegonsporiopsis K.T. van Warmelo & B.C. Sutton, 1981
- Genus Stegophorella Petrak, 1947
- Genus Stellifraga V. Alstrup & M. Olech, 1993
- Genus Stellomyces G. Morgan-Jones, R.C. Sinclair & A. Eicker, 1987
- Genus Stellopeltis A.C. Batista & Vital in A.C. Batista & R. Ciferri, 1959
- Genus Stellospora J.L. Alcorn & B.C. Sutton, 1984
- Genus Stellothyriella A.C. Batista & R. Ciferri, 1959
- Genus Stemmaria Preuss, 1851
- Genus Stenellopsis G. Morgan-Jones, 1980 accepted as Parastenella J.C. David, 1991
- Genus Stenocephalopsis G.P. Chamuris & C.J.K. Wang, 1998
- Genus Stenocephalum G.P. Chamuris & C.J.K. Wang, 1990
- Genus Stenocladiella L. Marvanová & E. Descals, 1987
- Genus Stenospora F.C. Deighton, 1969
- Genus Stephanosporium G. Dal Vesco, 1961
- Genus Sterigmatobotrys Oudemans, 1886
- Genus Stevensomyces E.F. Morris & D.E. Finley, 1965
- Genus Stevensonula F. Petrak, 1952
- Genus Stichospora Petrak, 1927
- Genus Stictopatella F. von Höhnel, 1918
- Genus Stictosepta F. Petrak, 1964
- Genus Stigmastoma A.C. Batista & Maia in A.C. Batista et al., 1960 accepted as Pycnothyrium Diedicke, 1913
- Genus Stigmatellina A.C. Batista & H.S. Maia in A.C. Batista et al., 1960
- Genus Stigmateopsis A.C. Batista in A.C. Batista et al., 1960 accepted as Placonema (Saccardo) Petrak, 1921
- Genus Stigmatisphaera Dumortier, 1822
- Genus Stigmella Léveillé in Demidov, 1842
- Genus Stigmopeltella H. Sydow, 1927 accepted as Stigmopeltis H. Sydow, 1927
- Genus Stigmopeltis H. Sydow, 1927
- Genus Stigmopeltopsis G.E.P. Peres, 1961 accepted as Myxothyriopsis Batista & A.F. Vital, 1956
- Genus Stigmopsis Bubák, 1914 accepted as Cheiromyces Berkeley & M.A. Curtis, 1857
- Genus Stilbellula Boedijn, 1951
- Genus Stilbomyces J.B. Ellis & Everhart, 1895
- Genus Stilbophoma Petrak, 1942
- Genus Stilbospora Persoon, 1797
- Genus Stomatogenella Petrak, 1955
- Genus Strasseria G. Bresadola & P.A. Saccardo, 1902
- Genus Strasseriopsis B.C. Sutton & T. Kobayashi, 1970
- Genus Stratiphoromyces T.K. Goh & K.D. Hyde, 1998
- Genus Strickeria Körber, 1865
- Genus Strionemadiplodia Zambettakis, 1955
- Genus Striosphaeropsis G.J.M. Verkley & A. van der Aa in G.J.M. Verkley et al., 1997
- Genus Stromatopogon A. Zahlbruckner, 1897
- Genus Stromatopycnis A.F. Vital, 1956
- Genus Stromatostysanus F. von Höhnel in Weese, 1829
- Genus Strongylothallus A.C. Batista & R. Ciferri, 1959
- Genus Strumellopsis F. von Höhnel, 1909
- Genus Stygiomyces B.J. Coppins & S.Y. Kondratyuk, 1995
- Genus Stylaspergillus B.C. Sutton, J.L. Alcorn & P.J. Fisher, 1982
- Genus Subicularium M.L. Farr & R.D. Goos, 1989
- Genus Subramania D. Rao & P.R. Rao, 1964
- Genus Subramanianospora Narayanan, J.K. Sharma & Minter, 2003
- Genus Subramaniomyces K.I. Mani Varghese & V.G. Rao, 1980
- Genus Subulariella F. von Höhnel, 1915
- Genus Subulispora K. Tubaki in K. Tubaki & T. Yokoyama, 1971
- Genus Surculiseries I. Okane, A. Nakagiri & Tad. Ito, 2001
- Genus Sutravarana C.V. Subramanian & K.V. Chandrashekara, 1977
- Genus Suttonia S. Ahmad, 1961 accepted as Suttoniella S. Ahmad, 1961
- Genus Suttoniella S. Ahmad, 1961
- Genus Suttonina H.C. Evans, 1984
- Genus Syamithabeeja C.V. Subramanian & K. Natarajan, 1976
- Genus Sylviacollaea R. Ciferri, 1963
- Genus Symbiotaphrina H. Kühlwein & G. Jurzitza ex W. Gams & J.A. von Arx, 1980
- Genus Symphyosirella K.A. Seifert in Gams, Seifert & Morgan-Jones, 2009
- Genus Symphysos A.C. Batista & W.A. Cavalcanti in A.C. Batista et al., 1967
- Genus Sympodina C.V. Subramanian & B.C. Lodha, 1964 accepted as Veronaea Ciferri & Montemartini, 1957
- Genus Sympodiocladium E. Descals in E. Descals & J. Webster, 1982
- Genus Sympodioclathra H. Voglmayr in H. Voglmayr & I. Krisai-Greilhuber, 1997
- Genus Sympodiophora G.R.W. Arnold, 1970 accepted as Pseudohansfordia G.R.W. Arnold, 1970
- Genus Sympodioplanus R.C. Sinclair & S. Boshoff in R.C. Sinclair et al., 1997
- Genus Synchronoblastia F.A. Uecker & F.L. Caruso, 1988
- Genus Syncladium Rabenhorst, 1859
- Genus Syncollesia C.G.D. Nees, 1823 accepted as Fumago Persoon, 1822
- Genus Synnemacrodictys W.A. Baker & G.A. Morgan-Jones in Gams, Seifert & Morgan-Jones, 2009
- Genus Synnemaseimatoides K. Matsushima & T. Matsushima, 1996
- Genus Synnematomyces Y. Kobayasi, 1981
- Genus Synnemellisia N.K. Rao, C. Manoharachary & R.D. Goos, 1989
- Genus Synnmukerjiomyces K.R. Aneja & R. Kumar, 1999
- Genus Synostomina Petrak, 1949
- Genus Synsphaeria H.F. Bonorden, 1851
- Genus Syphosphaera Dumortier, 1822
- Genus Systremmopsis Petrak, 1923
- Genus Szaferomyces G. Worobiec & M. Piątek in Worobiec et al., 2023 †
- Genus Taeniolina M.B. Ellis, 1976
- Genus Taeniophora P.A. Karsten, 1886 accepted as Phragmotrichum G. Kunze, 1823
- Genus Talekpea D. Lunghini & A. Rambelli, 1979
- Genus Talpapellis V. Alstrup & M.S. Cole, 1998
- Genus Tandonea M.D. Mehrotra, 1991
- Genus Tandonia M.D. Mehrotra, 1991 accepted as Tandonea M.D. Mehrotra, 1991
- Genus Tarsodisporus A.C. Batista & A.S.A. Silva, 1965
- Genus Tassia H. Sydow & P. Sydow, 1919
- Genus Tawdiella K.B. Deshpande & K.S. Deshpande, 1966
- Genus Taxomyces G. Strobel, A. Stierle, D. Stierle & W.M. Hess, 1993
- Genus Tectacervulus A.W. Ramaley, 1992
- Genus Tegoa Batista & Fonseca, 1961
- Genus Telioclipeum A.P. Viégas, 1962
- Genus Telligia Hendrickx, 1948
- Genus Temerariomyces B.C. Sutton, 1993
- Genus Teratosperma H. Sydow & P. Sydow, 1909
- Genus Tetrabrachium A. Nawawi & A.J. Kuthubutheen, 1987
- Genus Tetrabrunneospora B.J. Dyko, 1978
- Genus Tetrachia P.A. Saccardo, 1921 accepted as Spegazzinia P.A. Saccardo, 1879
- Genus Tetrachia Berkeley & M.A. Curtis, 1882 accepted as Spegazzinia P.A. Saccardo, 1879
- Genus Tetracoccosporis F.E. Clements, 1909
- Genus Tetracoccosporium Szabó, 1905
- Genus Tetradia T. Johnson, 1904
- Genus Tetradigita R. Kar, B.D. Mandaokar & R.K. Kar, 2009 †
- Genus Tetrameronycha Spegazzini ex W. Rossi & M. Blackwell, 1990
- Genus Tetranacriella Kohlmeyer & Volkmann-Kohlmeyer, 2001
- Genus Tetranacrium H.J. Hudson & B.C. Sutton, 1964
- Genus Tetraposporium S.J. Hughes, 1951
- Genus Textotheca T. Matsushima, 1996
- Genus Thallisphaera Dumortier, 1822
- Genus Thallospora L.S. Olive, 1948
- Genus Thamnogalla D.L. Hawksworth, 1980
- Genus Thaptospora B.C. Sutton & I.G. Pascoe, 1987
- Genus Tharoopama C.V. Subramanian, 1956
- Genus Thelidiella Fink in Hedrick, 1933
- Genus Thelonectria P. Chaverri & C. Salgado, 2011
- Genus Thirumalacharia Y. Rathaiah, 1981
- Genus Tholomyces Matsushima, 2003
- Genus Thomiella C.W. Dodge, 1935 accepted as Gonatobotryum P.A. Saccardo, 1880
- Genus Thoracella Oudemans, 1900
- Genus Thrinacospora Petrak, 1948
- Genus Thyridella (P.A. Saccardo) P.A. Saccardo, 1895
- Genus Thyriostromella A.C. Batista & Costa in A.C. Batista & R. Ciferri, 1959
- Genus Thyrococcum (P.A. Saccardo) P.A. Saccardo in P.A. Saccardo & A. Trotter, 1913
- Genus Thyrostromella von Höhnel, 1919
- Genus Thyrotheca Kirschstein, 1944
- Genus Thyrsidiella von Höhnel ex von Höhnel, 1909
- Genus Thyrsidina F. von Höhnel, 1905
- Genus Thyrsidium Montagne in Durieu, 1846-1849 accepted as Cheirospora Mougeot & E.M. Fries, 1825
- Genus Tiarosporellivora E. Punithalingam, 1981
- Genus Ticogloea G. Weber, F. Spaaij & W. Gams, 1994
- Genus Ticosynnema R.F. Castañeda-Ruiz, M.M. Granados & M. Mardones in Castañeda-Ruiz, Granados, Mardones, Stadler, Minter, Hernández-Restrepo, Gené & Guarro, 2013
- Genus Tilakiopsis V.G. Rao, 1994
- Genus Titaeopsis B.C. Sutton & F.C. Deighton in B.C. Sutton, 1984
- Genus Titaeospora Bubák, 1916
- Genus Tomenticola F.C. Deighton, 1969
- Genus Tompetchia C.V. Subramanian, 1985
- Genus Tonduzia F.L. Stevens, 1927 accepted as Dontuzia L.D. Gómez Pignataro, 1973
- Genus Torulella V. Köfaragó-Gyelnik, 1939
- Genus Torulopsiella H.B. Bender, 1932
- Genus Torulopsis Spegazzini, 1918 accepted as Torulopsiella H.B. Bender, 1932
- Genus Toxosporiella B.C. Sutton, 1986
- Genus Toxosporiopsis B.C. Sutton & Sellar, 1966
- Genus Toxosporium Vuillemin, 1896
- Genus Trachythyriolum Spegazzini, 1919
- Genus Tracylla (P.A. Saccardo) F. Tassi, 1904
- Genus Traquairia Carruthers, 1873 †
- Genus Treleasiella Spegazzini, 1896
- Genus Trematophoma Petrak, 1924
- Genus Tremellidium Petrak, 1927
- Genus Tretocephala C.V. Subramanian, 1995
- Genus Tretophragmia C.V. Subramanian & K. Natarajan, 1974
- Genus Tretospeira K.A. Pirozynski, 1972
- Genus Tretovularia F.C. Deighton, 1984
- Genus Triacutus G.L. Barron & S.S. Tzean, 1981
- Genus Triadelphia C.A. Shearer & J.L. Crane, 1971
- Genus Tribolospora D.A. Reid, 1966
- Genus Tricellula A.L. Van Beverwijk, 1954
- Genus Trichaegum Corda, 1837
- Genus Trichobolbus A.C. Batista in A.C. Batista & W.A. Cavalcanti, 1964
- Genus Trichobotrys Penzig & P.A. Saccardo, 1901
- Genus Trichoconis F.E. Clements, 1909
- Genus Trichocrea El. Marchal, 1891
- Genus Trichodiscula Vouaux, 1910
- Genus Trichodochium H. Sydow, 1927
- Genus Trichodytes Klebahn, 1898
- Genus Tricholeconium Corda, 1837 accepted as Sarcopodium Ehrenberg ex A.T. Brongniart in F. Cuvier, 1824
- Genus Trichomatoclava G.F. Sepúlveda, R.C. Pereira-Carvalho & J.C. Dianese, 2009
- Genus Trichomatomyces D. Dornelo-Silva & J.C. Dianese, 2004
- Genus Trichomatosphaera R.C. Pereira-Carvalho, G. Sepúlveda-Chavera & J.C. Dianese, 2009
- Genus Trichopeltium F.E. Clements, 1909 accepted as Trichopeltulum Spegazzini, 1889
- Genus Trichopeltulum Spegazzini, 1889
- Genus Trichoseptoria Cavara, 1892(?)
- Genus Trichosperma Spegazzini, 1888 accepted as Spermotrichum O. Kuntze, 1898
- Genus Trichospermella Spegazzini, 1912
- Genus Trichosphaera Dumortier, 1822
- Genus Trichosphaeropsis A.C. Batista & M.L. Nascimento in A.C. Batista et al., 1960
- Genus Trichosporodochium D. Dornelo-Silva & J.C. Dianese, 2004
- Genus Trichostroma Link, 1826
- Genus Trichostroma Corda in J. Sturm, 1829
- Genus Tricladiella K. Ando & K. Tubaki, 1984
- Genus Tricladiopsis E. Descals in E. Descals & J. Webster, 1982
- Genus Tricladiospora A. Nawawi & A.J. Kuthubutheen, 1988
- Genus Tricornispora L. Bonar, 1967 accepted as Tridentaria Preuss, 1852
- Genus Tridentaria Preuss, 1852
- Genus Trifurcospora K. Ando & K. Tubaki in K. Ando, K. Tubaki & K. Arai, 1988
- Genus Triglyphium Fresenius, 1852
- Genus Trigonosporium Tassi, 1900
- Genus Tripoconidium C.V. Subramanian, 1978
- Genus Triposporina F. von Höhnel, 1912
- Genus Triramulispora T. Matsushima, 1975
- Genus Triscelophorus Ingold, 1944
- Genus Triscelosporium A. Nawawi & A.J. Kuthubutheen, 1987
- Genus Trisulcosporium H.J. Hudson & B.C. Sutton, 1964
- Genus Trizodia T. Laukka in Stenroos et al., 2009
- Genus Trochophora R.T. Moore, 1955
- Genus Tromeropsis M.A. Sherwood in D.L. Hawksworth & M.A. Sherwood, 1981
- Genus Troposporella P.A. Karsten, 1892
- Genus Troposporium H.W. Harkness, 1884
- Genus Troposporopsis S.R. Whitton, E.H.C. McKenzie & K.D. Hyde, 1999
- Genus Trullula Cesati, 1852
- Genus Tryssglobulus B.C. Sutton & I.G. Pascoe, 1987
- Genus Tuberculariopsis F. von Höhnel, 1909
- Genus Tubercularis F.E. Clements & Shear, 1931 accepted as Tuberculariopsis F. von Höhnel, 1909
- Genus Tuberculispora F.C. Deighton & K.A. Pirozynski, 1972
- Genus Tuberosurculus Paulet, 1791
- Genus Tulipispora Á. Révay & J. Gönczöl, 2009
- Genus Tumularia E. Descales & L. Marvanová in L. Marvanová & E. Descals, 1987
- Genus Tunicago B.C. Sutton & F.G. Pollack, 1977
- Genus Turturconchata J.L. Chen, T.L. Huang & S.S. Tzean, 1999
- Genus Tylomyces Cortini, 1921
- Genus Tympanosporium W. Gams, 1974
- Genus Uberispora K.A. Pirozynski & C.S. Hodges, 1973
- Genus Ubrizsya Negru in Negru & Sándor, 1965
- Genus Ulocoryphus J. Michaelides, L. Hunter & W.B. Kendrick, 1982
- Genus Uloploca H. Klebahn, 1933
- Genus Ulvella (Nylander) V. Trevisan, 1880
- Genus Umbellidion B.C. Sutton & C.S. Hodges, 1975
- Genus Umispora M.A. Abdel-Wahab & T. Nagahama, 2010
- Genus Uncispora R.C. Sinclair & G. Morgan-Jones, 1979
- Genus Uredinaria Chevallier, 1826
- Genus Urobasidium Giesenhagen, 1893 accepted as Zygosporium C. Montagne in Sagra, 1838-1842
- Genus Uroconis F.E. Clements, 1909 accepted as Urohendersonia Spegazzini, 1902
- Genus Urohendersonia Spegazzini, 1902
- Genus Urohendersoniella Petrak, 1955
- Genus Urophiala Vuillemin, 1910 accepted as Zygosporium C. Montagne in Sagra, 1838-1842
- Genus Urosporium Fingerhuth, 1836
- Genus Ussurithyrites V.A. Krassilov, 1967 †
- Genus Usteria Batista & H. Maia, 1962 accepted as Mycousteria M.L. Farr, 1986
- Genus Uvarispora Goos & Pirozynski, 1975
- Genus Vagnia D.L. Hawksworth & J. Miadlikowska, 1997
- Genus Valsarioxylon von Höhnel, 1929
- Genus Vanakripa D.J. Bhat, W.B. Kendrick & T.R. Nag Raj in D.J. Bhat & W.B. Kendrick, 1993
- Genus Vanbeverwijkia V.V. Agnihothrudu, 1961
- Genus Vanderystiella P. Hennings, 1908
- Genus Vanibandha Manoharachary, N.K. Rao, Kunwar & D.K. Agarwal, 2006
- Genus Vanterpoolia A. Funk, 1982
- Genus Vargamyces S. Tóth, 1980
- Genus Variocladium E. Descals & L. Marvanová in E. Descals et al., 1999
- Genus Vasculomyces S.F. Ashby, 1913
- Genus Vasudevella Chona, Munjal & Bajaj, 1957
- Genus Velutipila D.L. Hawksworth, 1987
- Genus Ventrographium H.P. Upadhyay, W.A. Cavalcanti & A.A. Silva, 1986
- Genus Venustisporium R.F. Castañeda Ruiz & T. Iturriaga, 1999
- Genus Venustocephala T. Matsushima, 1995
- Genus Venustosynnema R.F. Castañeda & W.B. Kendrick, 1990
- Genus Venustusporium R.F. Castañeda Ruiz & T. Iturriaga, 1999
- Genus Veracruzomyces Mercado, Guarro, Heredia & J. Mena, 2002
- Genus Veramycella G. Delgado, 2009
- Genus Veramyces T. Matsushima, 1993
- Genus Verdipulvinus A.W. Ramaley, 1999
- Genus Vermiculariopsis C. Torrend, 1912
- Genus Vermispora F.C. Deighton & K.A. Pirozynski, 1972
- Genus Vermisporium H.J. Swart & M.A. Williamson, 1983
- Genus Veronaea Ciferri & Montemartini, 1957
- Genus Veronaella C.V. Subramanian & K.R. Chandra-Reddy, 1975
- Genus Veronidia A. Negru, 1964
- Genus Verrucariella S. Ahmad, 1967
- Genus Verrucarites H.R. Göppert in F. Wimmer, 1844 †
- Genus Verrucaster Tobler, 1912
- Genus Verrucophragmia P.W. Crous, M.J. Wingfield & W.B. Kendrick, 1994
- Genus Versicolorisporium S. Hatakeyama, K. Tanaka & Y. Harada, 2008
- Genus Verticicladus T. Matsushima, 1993
- Genus Verticilliopsis Costantin, 1892
- Genus Verticimonosporium T. Matsushima, 1971
- Genus Vesicularia I. Schmidt, 1974 accepted as Cumulospora I. Schmidt, 1985
- Genus Vesiculohyphomyces E.A.S. Armando, R.C. Pereira-Carvalho & J.C. Dianese, 2009
- Genus Vestigium Pirozynski & Shoemaker, 1972
- Genus Vinculum R.Y. Roy, R.S. Dwivedi & P.K. Khanna, 1965 accepted as Barnettella D. Rao & P.R. Rao, 1964
- Genus Virgariella S.J. Hughes, 1953
- Genus Virgatospora D.E. Finley, 1967
- Genus Viridiannula Etayo, 2002
- Genus Viscomacula R. Sprague, 1950
- Genus Vittalia Gawas & Bhat, 2007
- Genus Voglinoana O. Kuntze, 1891
- Genus Volucrispora Haskins, 1958
- Genus Volutellaria P.A. Saccardo, 1886
- Genus Volutellis F.E. Clements & Shear, 1931
- Genus Volutellopsis Spegazzini, 1910
- Genus Volutellopsis C. Torrend, 1913 accepted as Volutellis F.E. Clements & Shear, 1931
- Genus Vonarxia A.C. Batista in A.C. Batista, J. Bezerra & H.S. Maia, 1960
- Genus Vouauxiella F. Petrak & H. Sydow, 1927
- Genus Waihonghopes Yanna & K.D. Hyde, 2002
- Genus Wakefieldia G. Arnaud, 1954 accepted as Anaphysmene Bubák, 1906
- Genus Wardinella A.C. Batista & G.E.P. Peres in A.C. Batista et al., 1960
- Genus Waydora B.C. Sutton in B.C. Sutton et al., 1976
- Genus Websteromyces W.A. Baker & E.C. Partridge in E.C. Partridge et al., 2000
- Genus Weesea F. von Höhnel, 1920
- Genus Weissia A.C. Batista & M.M.P. Herrera, 1964
- Genus Wettsteiniella O. Kuntze, 1891 accepted as Arthrobotryum Cesati, 1854
- Genus Weufia D.J. Bhat & B.C. Sutton, 1985
- Genus Winterina P.A. Saccardo, 1891
- Genus Wojnowicia P.A. Saccardo in P.A. Saccardo & P. Sydow, 1899
- Genus Wolkia J. Ramsbottom, 1915
- Genus Xanthoriicola D. Hawksworth in D. Hawksworth & E. Punithalingam, 1973
- Genus Xeilaria Libert, 1837
- Genus Xenidiocercus T.R. Nag Raj, 1993
- Genus Xenobotrytis R.F. Castañeda Ruiz & W.B. Kendrick, 1990 accepted as Paracostantinella C.V. Subramanian & K. Sudha, 1989
- Genus Xenochora Petrak, 1948
- Genus Xenoconiothyrium P.W. Crous & S. Marincowitz, 2011
- Genus Xenocylindrosporium P.W. Crous & G.J.M. Verkley, 2009
- Genus Xenodomus Petrak in H. Sydow & Petrak, 1922
- Genus Xenoheteroconium D.J. Bhat, W.B. Kendrick & T.R. Nag Raj in D.J. Bhat & W.B. Kendrick, 1993
- Genus Xenokylindria F. DiCosmo, S.M. Berch & W.B. Kendrick, 1983
- Genus Xenomyxa H. Sydow, 1939
- Genus Xenopeltis H. Sydow & P. Sydow, 1919
- Genus Xenoplaca Petrak, 1949
- Genus Xenostroma F. von Höhnel, 1915
- Genus Xepicula T.R. Nag Raj, 1993
- Genus Xepiculopsis T.R. Nag Raj, 1993
- Genus Xeroconium D.L. Hawksworth, 1981
- Genus Xiambola D.W. Minter & V. Holubová-Jechová, 1981
- Genus Xiphomyces H. Sydow & P. Sydow, 1916
- Genus Xylaria J. Hill ex S.F. Gray, 1821
- Genus Xylochia B.C. Sutton in B.C. Sutton & N.D. Sharma, 1983
- Genus Xylocoryneum Saccardo
- Genus Xyloglyphis F.E. Clements, 1909
- Genus Xylogone J.A. von Arx & T. Nilsson, 1969
- Genus Xylohypha (E.M. Fries) E.W. Mason ex Deighton, 1960
- Genus Xylohyphopsis W.A. Baker & Partridge, 2000
- Genus Xylona R. Gazis & P. Chaverri in Gazis, Miadlikowska, Lutzoni, Arnold & Chaverri, 2012
- Genus Xylosphaeria M.C. Cooke, 1879
- Genus Xyphasma Rebentisch, 1844 accepted as Hyphasma Rebentisch ex Nocca & Balbis, 1821
- Genus Yalodendron Capriotti, 1962
- Genus Yalomyces T.R. Nag Raj, 1993
- Genus Ybotromyces Rulamort, 1986
- Genus Yinmingella T.K. Goh, K.M. Tsui & K.D. Hyde, 1999
- Genus Ypsilina J. Webster, E. Descals & L. Marvanová in E. Descals et al., 1999
- Genus Yuccamyces Gour, B.J. Dyko & B.C. Sutton in B.J. Dyko & B.C. Sutton, 1979
- Genus Yunnania H.Z. Kong, 1998
- Genus Zakatoshia B.C. Sutton, 1973
- Genus Zebrospora E.H.C. McKenzie, 1991
- Genus Zelandiocoela T.R. Nag Raj, 1993
- Genus Zelodactylaria A.C.R. da Cruz, L.F.P. Gusmão & R.F. Castañeda-Ruiz in Cruz, Gusmão, Castañeda-Ruíz, Stadler & Minter, 2012
- Genus Zelopelta B.C. Sutton & R.D. Gaur, 1984
- Genus Zelosatchmopsis T.R. Nag Raj in M. Saikawa et al., 1991
- Genus Zelotriadelphia R.F. Castañeda, Saikawa, M. Stadler & Iturriaga, 2005
- Genus Zernya Petrak, 1947
- Genus Zetesimomyces T.R. Nag Raj, 1988
- Genus Zevadia J.C. David & D. Hawksworth, 1995
- Genus Zilingia Petrak, 1934
- Genus Zinzipegasa T.R. Nag Raj, 1993
- Genus Zopheromyces B.C. Sutton & C.S. Hodges Jr., 1977
- Genus Zunura T.R. Nag Raj, 1993
- Genus Zygodesmus Corda, 1837
- Genus Zygosporium C. Montagne in Sagra, 1838-1842
- Genus Zymonema Beurmann & Gougerot, 1909
- Genus Zymoseptoria W. Quaedvlieg & P.W. Crous, 2011
- Genus Zyxiphora B.C. Sutton, 1981
- Family Dematiaceae
- Family Herpomycetaceae accepted as Ascomycota incertae sedis
- Family Leptothyriaceae accepted as Ascomycota incertae sedis
- Family Nectrioidaceae accepted as Ascomycota incertae sedis
- Family Nectroidaceae accepted as Ascomycota incertae sedis
- Family Perisporiaceae accepted as Ascomycota incertae sedis
- Family Sphaeropsidaceae accepted as Ascomycota incertae sedis
- Family Zophiaceae accepted as Ascomycota incertae sedis
- Class Ascomycotina incertae sedis
- Class Dothideomycetes
- Class Eurotiomycetes
- Class Geoglossomycetes
- Class Laboulbeniomycetes
- Class Lecanoromycetes
- Class Leotiomycetes
- Class Lichinomycetes
- Class Neolectomycetes
- Class Orbiliomycetes
- Class Pezizomycetes
- Class Pneumocystidomycetes
- Class Saccharomycetes
- Class Sareomycetes
- Class Schizosaccharomycetes
- Class Sordariomycetes
- Class Taphrinomycetes
- Class Xylonomycetes
- Phylum Basidiobolomycota accepted as Zygomycota
- Phylum Basidiomycota
- Phylum Blastocladiomycota
- Phylum Calcarisporiellomycota accepted as Zygomycota
- Phylum Caulochytriomycota accepted as Chytridiomycota
- Phylum Chytridiomycota
- Phylum Entomophthoromycota
- Phylum Fungi (awaiting allocation)
- Phylum Fungi incertae sedis
- Phylum Glomeromycota
- Phylum Kickxellomycota accepted as Zygomycota
- Phylum Monoblepharomycota accepted as Chytridiomycota
- Phylum Mortierellomycota accepted as Zygomycota
- Phylum Mucoromycota accepted as Zygomycota
- Phylum Nematophyta †
- Phylum Neocallimastigomycota accepted as Chytridiomycota
- Phylum Olpidiomycota accepted as Chytridiomycota
- Phylum Rozellomycota
- Phylum Zoopagomycota accepted as Zygomycota
- Phylum Zygomycota
- Genus Celluloxylon J.W. Dawson, 1881 † accepted as Prototaxites J.W. Dawson, 1859 †
- Genus Mucorites Meschinelli, 1898 † accepted as Mucorites Meschinelli ex Lindau, 1900 †
- Genus Mucorites Meschinelli ex Lindau, 1900 †
- Genus Mycelites W. Roux, 1887 †
- Genus Mycobystrovia Goujet & Locquin, 1979 †
- Genus Nematophycus Carruthers, 1872 † accepted as Prototaxites J.W. Dawson, 1859 †
- Genus Nematophyton J.W. Dawson, 1888 † accepted as Prototaxites J.W. Dawson, 1859 †
- Genus Ourasphaira C.C. Loron, R.H. Rainbird, E.C. Turner, J.W. Greenman & E.J. Javaux, 2019 †
- Genus Petsamomyces M.Y. Belova, 2006 †
- Genus Pilula S.D. Harker & W.A.S. Sarjeant in Harker et al., 1990 † accepted as Pilula S.D. Harker & W.A.S. Sarjeant ex S.D. Harker & W.A.S. Sarjeant, 1992 †
- Genus Pilula S.D. Harker & W.A.S. Sarjeant ex S.D. Harker & W.A.S. Sarjeant, 1992 †
- Genus Polycellaria H.D. Pflug, 1965 †
- Genus Prototaxites J.W. Dawson, 1859 †
- Genus Rhyniomycelium M. Krings & C.J. Harper, 2023 †
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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