Species (8.450)
- Ombrophila hemiamyloidea Baral & Gminder 1999
- Ombrophila juglandis Velen. 1939
- Ombrophila lacustris Velen. 1934
- Ombrophila longispora Velen. 1940
- Ombrophila paradoxa (R. Hedw.) Sacc. 1889
- Onygena equina (Willd. : Fr.) Pers. 1799
- Onygena corvina (Alb. & Schwein.) Fr. 1805
- Octosporella ornithocephala Döbbeler 1980
- Octosporella perforata (Döbbeler) Döbbeler 1980
- Octosporella fusispora Y.J. Yao & Spooner 2006
- Octosporella urosperma Döbbeler 1980
- Octosporella ptilidii Döbbeler 1988
- Odontotrema majusculum Rehm 1882
- Odontotrema alpinum (Sacc.) L. Holm 1979
- Olla caltharum Velen. 1934
- Olla auritae Velen. 1947
- Olla faginea Velen. 1934
- Ombrophila collemoides (Rehm) Sacc. 1889
- Ombrophila nigripes (Pers.) Boud. 1907
- Ombrophila rehnana Baral & T. Richter
- Ombrophila rudis (Berk.) W. Phillips 1887
- Ombrophila subcerinea Rehm 1906
- Ombrophila tschatcalica Raitv. 1969
- Ombrophila alba (Schumach.) Boud. 1907
- Ombrophila aquosa Velen. 1934
- Ombrophila limosella (P. Karst.) Rehm 1881
- Ombrophila rivulorum Velen. 1934
- Octospora lilacina (Seaver) Svr?ek & Kubi?ka 1963
- Octospora nemoralis Benkert & Brouwer 2004
- Octospora phagospora (Flageolet & Lorton) Dennis & Itzerott 1973
- Octospora rubens (Boud.) M.M. Moser 1963
- Octospora splachnophila Benkert & Kristiansen 2008
- Octospora svrcekii Benkert 1998
- Octospora subglobispora Benkert 1997
- Niptera myriadea (Cooke & Massee) Boud. 1907
- Niptera melanophaea Rehm 1891
- Niptera ramincola Rehm 1896
- Niptera umbelliferarum Velen. 1934
- Niptera subbiatorina Rehm 1891
- Niptera rollandii Boud. 1888
- Octospora coccinea var. tetraspora Benkert 1998
- Octospora convexula (Pers.) L.R. Batra 1963
- Octospora echinospora Caillet & Moyne 1987
- Octospora erzbergeri Benkert 2006
- Octospora fissidentis Benkert & Brouwer 2004
- Octospora gemmicola Benkert 1998
- Octospora coccinea (P. Crouan & H. Crouan) Brumm. 1967
- Octospora guestfaliensis Benkert 2009
- Taphrina pseudoplatani (C. Massal.) Jaap 1917
- Taphrina rhizophora Johanson 1886
- Tarbertia juncina Dennis 1974
- Tarzetta spurcata (Pers.) Harmaja 1974
- Tarzetta pusilla Harmaja 1974
- Tarzetta insignis (Berthet & Riousset) Korf & J.K. Rogers 1971
- Tarzetta scotica (Rea) Y.J. Yao & Spooner 2002
- Thecotheus himalayensis S.C. Kaushal 1980
- Thecotheus crustaceus (Starbäck) Aas & N. Lundq. 1992
- Thecotheus holmskjoldii (E.C. Hansen) Eckblad 1968
- Thecotheus lundqvistii Aas 1992
- Thecotheus neoapiculatus Doveri & Coué 2008
- Thecotheus keithii (W. Phillips) Aas 1992
- Thecotheus pelletieri (P. Crouan & H. Crouan) Boud. 1869
- Thecotheus strangulatus (Velen.) Aas & N. Lundq. 1992
- Thecotheus platyapiculatus I. Kušan & Mato?ec 2015
- Thecotheus uncinatus Aas 1992
- Thecotheus viridescens E. Ludw. 1989
- Thelebolus dubius var. lagopi (Rea) Doveri 2004
- Thermoascus aurantiacus Miehe 1907
- Thermoascus thermophilus (Sopp) Arx 1974
- Therrya pini var. mughicola Svr?ek 1958
- Thyrospora calosperma Kirschst. 1938
- Thelebolus crustaceus (Fuckel) Kimbr. 1967
- Thelebolus nanus Heimerl 1889
- Thelebolus microsporus (Berk. & Broome) Kimbr. 1967
- Thelebolus stercoreus Tode : Fr. 1790
- Themisia faginea Velen. 1947
- Thermoascus crustaceus (Apinis & Chesters) Stolk 1965
- Therrya gallica Sacc. & Penz. 1882
- Tapesia cinerella Rehm 1882
- Tapesia laburni Velen. 1939
- Tapesia strobilicola (Rehm) Sacc. 1889
- Taphridium algeriense Lagerh. & Juel 1902
- Tapesia variabilispora Svr?ek 1993
- Tapesia pezizellaeformis Velen. 1939
- Taphrina acerina A.G. Eliasson 1895
- Taphrina athyrii Siemaszko 1923
- Taphrina armeniacae Georgescu & Badea 1937
- Taphrina bergeniae Döbbeler 1979
- Taphrina bacteriosperma Johanson 1887
- Taphrina confusa (G.F. Atk.) Giesenh. 1928
- Taphrina celtidis Sadeb. 1890
- Taphrina farlowii Sadeb. 1890
- Taphrina fusca Giesenh. 1899
- Taphrina wettsteiniana Herzfeld 1910
- Terfezia boudieri Chatin 1892
- Thecotheus agranulosus Kimbr. 1969
- Thecotheus biocellatus (Petr.) Aas 1992