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
- Class Ascomycotina incertae sedis
- Class Dothideomycetes
- Class Eurotiomycetes
- Class Geoglossomycetes
- Class Laboulbeniomycetes
- Class Lecanoromycetes
- Class Leotiomycetes
- Class Lichinomycetes
- Class Neolectomycetes
- Class Orbiliomycetes
- Class Pezizomycetes
- Order Pezizales
- Family Aleuriaceae accepted as Pezizaceae
- Family Ascobolaceae
- Family Ascodesmidaceae
- Family Caloscyphaceae
- Family Carbomycetaceae
- Family Chorioactidaceae
- Family Discinaceae
- Family Geneaceae accepted as Pyronemataceae
- Family Glaziellaceae
- Family Glischodermataceae accepted as Pezizaceae
- Family Glischrodermataceae accepted as Pezizaceae
- Family Helvellaceae
- Genus Acetabula (E.M. Fries) Fuckel, 1870 accepted as Helvella Linnaeus, 1753
- Genus Balsamia Vittadini, 1831
- Genus Barssia Gilkey, 1925
- Genus Biverpa (E.M. Fries) Boudier, 1907 accepted as Helvella Linnaeus, 1753
- Genus Boletolichen Jussieu, 1789 accepted as Helvella Linnaeus, 1753
- Genus Cidaris E.M. Fries, 1849
- Genus Coelomorum Paulet, 1793 accepted as Helvella Linnaeus, 1753
- Genus Costapeda Falck, 1923 accepted as Helvella Linnaeus, 1753
- Genus Cowlesia J.A. Nieuwland, 1916 accepted as Helvella Linnaeus, 1753
- Genus Cyathipodia Boudier, 1907 accepted as Helvella Linnaeus, 1753
- Genus Euhelvella S. Imai, 1932
- Genus Fuckelina O. Kuntze, 1891 accepted as Helvella Linnaeus, 1753
- Genus Globopilea Beauseigneur, 1926 accepted as Helvella Linnaeus, 1753
- Genus Gyromitra (E.M. Fries) S. Imai, 1932
- Genus Helvella Linnaeus, 1753
- Genus Leptopodia Boudier, 1885 accepted as Helvella Linnaeus, 1753
- Genus Leucangium Quélet, 1883
- Genus Macropodia Fuckel, 1869 accepted as Helvella Linnaeus, 1753
- Genus Macroscyphus C.G.D. Nees ex S.F. Gray, 1821 accepted as Helvella Linnaeus, 1753
- Genus Midotis E.M. Fries, 1828 accepted as Wynnella Boudier, 1885
- Species Midotis americana (Thaxt.) Sacc. & Traverso, 1911 accepted as Furia americana (Thaxt.) Humber, 1989
- Species Midotis versiformis (Pers.) Seaver, 1951 accepted as Chlorencoelia versiformis (Pers.) J.R. Dixon, 1975
- Genus Paxina O. Kuntze, 1891 accepted as Helvella Linnaeus, 1753
- Genus Phaeomacropus P.C. Hennings, 1899 accepted as Helvella Linnaeus, 1753
- Genus Phleboscyphus Clements, 1903 accepted as Helvella Linnaeus, 1753
- Genus Phymatomyces Y. Kobayasi, 1937 accepted as Barssia Gilkey, 1925
- Genus Pindara Velenovský, 1934 accepted as Helvella Linnaeus, 1753
- Genus Pseudobalsamia E. Fischer, 1907 accepted as Balsamia Vittadini, 1831
- Genus Tubipeda Falck, 1923 accepted as Helvella Linnaeus, 1753
- Genus Villihelvella S. Imai, 1932
- Genus Wynnella Boudier, 1885
- Family Hemiascosporiaceae accepted as Ascodesmidaceae
- Family Humariaceae accepted as Pyronemataceae
- Family Karstenellaceae
- Family Morchellaceae
- Family Mycogalopsidaceae accepted as Pyronemataceae
- Family Otideaceae accepted as Pyronemataceae
- Family Otidiaceae accepted as Pyronemataceae
- Family Pezizaceae
- Family Pezizales incertae sedis
- Family Pyronemataceae
- Family Rhizinaceae
- Family Sarcoscyphaceae
- Family Sarcosomataceae
- Family Terfeziaceae accepted as Pezizaceae
- Family Tuberaceae
- Order Pezizomycetes incertae sedis
- 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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