• Alternaria Nees ex Wallroth, 1816
• Alternaria acalyphicola E.G. Simmons, 1994
• Alternaria alliariae-officinalis Savul. & Sandu, 1933 accepted as Alternaria brassicae (Berk.) Sacc., 1880
• Alternaria allii Nolla, 1927 accepted as Alternaria solani Sorauer, 1896
• Alternaria alternantherae Holcomb & Antonop., 1976 accepted as Nimbya alternantherae (Holcomb & Antonop.) E.G. Simmons & Alcorn, 1995
• Alternaria alternata (Fr.) Keissl., 1912
• Alternaria anagallidis A. Raabe, 1939
• Alternaria angustiovoidea E.G. Simmons, 1986
• Alternaria aragakii E.G. Simmons, 1993
• Alternaria araliae H.C. Greene, 1953 accepted as Alternaria panax Whetzel, 1912
• Alternaria arbusti E.G. Simmons, 1993
• Alternaria argyranthemi E.G. Simmons & C.F. Hill, 1997
• Alternaria atrocariis E.G. Simmons, 1995
• Alternaria bataticola Ikata ex W. Yamam., 1960
• Alternaria brassicae (Berk.) Sacc., 1880
• Alternaria brassicicola (Schwein.) Wiltshire, 1947
• Alternaria burnsii Uppal, Patel & Kamat, 1938
• Alternaria calendulae Nirenberg, 1977
• Alternaria capsici-annui Savul. & Sandu, 1936
• Alternaria carotae (Ellis & Langl.) J.A. Stev. & Wellman, 1944 accepted as Alternaria dauci (J.G. Kühn) J.W. Groves & Skolko, 1944
• Alternaria carthami S. Chowdhury, 1944
• Alternaria cassiae Jurair & A. Khan, 1960
• Alternaria chartarum Preuss, 1851 accepted as Ulocladium chartarum (Preuss) E.G. Simmons, 1967
• Alternaria cheiranthi (Lib.) P.C. Bolle, 1924
• Alternaria chlamydospora Mouch., 1973
• Alternaria chrysanthemi E.G. Simmons & Crosier, 1965
• Alternaria cichorii Nattrass, 1937
• Alternaria cinerariae Hori & Enjoji, 1931
• Alternaria circinans (Berk. & M.A. Curtis) P.C. Bolle, 1924 accepted as Alternaria brassicicola (Schwein.) Wiltshire, 1947
• Alternaria citri (Penz.) Mussat, 1901
• Alternaria citri Ellis & N. Pierce, 1902
• Alternaria conjuncta E.G. Simmons, 1986
• Alternaria consortialis (Thüm.) J.W. Groves & S. Hughes, 1953 accepted as Ulocladium consortiale (Thüm.) E.G. Simmons, 1967
• Alternaria crassa (Sacc.) Rands, 1917
• Alternaria cucumerina (Ellis & Everh.) J.A. Elliott, 1917
• Alternaria cucurbitae Letendre & Roum., 1886 accepted as Ulocladium cucurbitae (Letendre & Roum.) E.G. Simmons, 1982
• Alternaria cyamopsidis Rangaswami & V. Rao, 1957 accepted as Alternaria cucumerina (Ellis & Everh.) J.A. Elliott, 1917
• Alternaria daturae (Fautrey) Bubák & Ranoj., 1909 accepted as Alternaria crassa (Sacc.) Rands, 1917
• Alternaria dauci (J.G. Kühn) J.W. Groves & Skolko, 1944
• Alternaria dendritica (Sousa da Câmara) P. Joly, 1964 accepted as Stemphylium dendriticum Sousa da Câmara, 1930
• Alternaria dennisii M.B. Ellis, 1971
• Alternaria dianthi F. Stevens & J.G. Hall, 1909
• Alternaria dianthicola Neerg., 1945
• Alternaria dichondrae Gambogi, Vannacci & Triolo, 1975
• Alternaria eichhorniae Nag Raj & Ponnappa, 1970
• Alternaria ethzedia E.G. Simmons, 1986 accepted as Lewia ethzedia E.G. Simmons, 1986
• Alternaria euphorbiae (Barthol.) Aragaki & J.Y. Uchida, 1985 accepted as Alternaria euphorbiicola E.G. Simmons & Engelhard, 1986
• Alternaria euphorbiicola E.G. Simmons & Engelhard, 1986
• Alternaria eureka E.G. Simmons, 1986 accepted as Embellisia eureka (E.G. Simmons) E.G. Simmons, 1990
• Alternaria exitiosa (J.G. Kühn) Jørst., 1945 accepted as Alternaria brassicae (Berk.) Sacc., 1880
• Alternaria fallax (Bubák & Dearn.) P. Joly, 1964 accepted as Alternaria anagallidis A. Raabe, 1939
• Alternaria fasciculata (Cooke & Ellis) L.R. Jones & Grout, 1897 accepted as Alternaria alternata (Fr.) Keissl., 1912
• Alternaria gaisen Nagano, 1928
• Alternaria geophila Dasz., 1912
• Alternaria godetiae (Neerg.) Neerg., 1945 accepted as Alternaria tenuissima (Kunze) Wiltshire, 1933
• Alternaria gomphrenae Togashi, 1926 accepted as Nimbya gomphrenae (Togashi) E.G. Simmons, 1989
• Alternaria gossypina (Thüm.) J.C.F. Hopkins, 1931
• Alternaria grisea Svilv., 1936
• Alternaria grossulariae Jacz., 1917
• Alternaria gypsophilae Neerg., 1945
• Alternaria hawaiiensis E.G. Simmons, 1993
• Alternaria helianthi (Hansf.) Tubaki & Nishih., 1969
• Alternaria helianthicola G.N. Rao & K. Rajagop., 1977
• Alternaria helianthinficiens E.G. Simmons, Walcz & R.G. Roberts, 1986
• Alternaria herculea (Ellis & G. Martin) J.A. Elliott, 1917 accepted as Alternaria brassicae (Berk.) Sacc., 1880
• Alternaria infectoria E.G. Simmons, 1986 accepted as Lewia infectoria (Fuckel) M.E. Barr & E.G. Simmons, 1986
• Alternaria iridis Cooke & Ellis
• Alternaria japonica Yoshii, 1941
• Alternaria kikuchiana S. Tanaka, 1933
• Alternaria lancipes Ellis & Everh. accepted as Stemphylium lancipes (Ellis & Everh.) E.G. Simmons, 1969
• Alternaria lanuginosa (Harz) Sacc., 1886 accepted as Ulocladium lanuginosum (Harz) E.G. Simmons, 1967
• Alternaria leucanthemi Nelen, 1962
• Alternaria limaciformis E.G. Simmons, 1981
• Alternaria limicola E.G. Simmons & M.E. Palm, 1990
• Alternaria lini Dey, 1933
• Alternaria linicola J.W. Groves & Skolko, 1945
• Alternaria longipedicellata Snowden, 1927 accepted as Alternaria macrospora Zimm., 1931
• Alternaria longipes (Ellis & Everh.) E.W. Mason, 1928
• Alternaria longissima Deighton & MacGarvie, 1968
• Alternaria macrospora (Sacc.) Sacc. accepted as Alternaria brassicae (Berk.) Sacc., 1880
• Alternaria macrospora Zimm., 1931
• Alternaria mali Roberts, 1924
• Alternaria malorum (Rühle) U. Braun, Crous & Dugan, 2003 accepted as Cladosporium malorum Rühle, 1931
• Alternaria malvae Roum. & Letell.
• Alternaria maritima G.K. Sutherl., 1916
• Alternaria mattiolae Neerg., 1945 accepted as Alternaria japonica Yoshii, 1941
• Alternaria metachromatica E.G. Simmons, 1994
• Alternaria molesta E.G. Simmons, 1981
• Alternaria mouchaccae E.G. Simmons, 1981
• Alternaria multirostrata E.G. Simmons & C.R. Jacks., 1968
• Alternaria nelumbii Enlows & F.V. Rand, 1921
• Alternaria oleracea Milbrath, 1922 accepted as Alternaria brassicicola (Schwein.) Wiltshire, 1947
• Alternaria oregonensis E.G. Simmons, 1994
• Alternaria padwickii (Ganguly) M.B. Ellis, 1971
• Alternaria panax Whetzel, 1912
• Alternaria passiflorae J.H. Simmonds, 1938
• Alternaria passiflorae Sawada, 1959
• Alternaria peglionii Curzi, 1926
• Alternaria pellucida E.G. Simmons, 1990
• Alternaria petroselini (Neerg.) E.G. Simmons, 1976