Fungi with Scientific Names beginning with the letter O

3,325 Fungi, page 1 of 2

• Obconicum chaerophylli Velen.
• Obconicum conicola Velen.
• Obelidium hamatum Sparrow 1937
• Obelidium megarhizum Willoughby 1961
• Obelidium mucronatum Nowak. 1877
• Obeliospora basispira Nawawi & Kuthub.
• Obeliospora minima W.P. Wu & McKenzie
• Obeliospora triappendiculata Kuthub. & Nawawi
• Oberwinkleria anulata Vánky & C. Vánky 1995
• Obolarina dryophila (Tul. & C. Tul.) Pouzar 1986
• Obryzum friesii (Keissl.) Nik. Hoffm. & Hafellner
• Obryzum striguloides Aptroot & Sipman
• Obscurodiscus myricae (P. Karst.) Raitv. 2002
• Obstipipilus malabaricus (T.S. Ramakr. & K. Ramakr.) B. Sutton 1968
• Obstipispora chewaclensis R.C. Sinclair & Morgan-Jones 1979
• Obtectodiscus aquaticus E. Müll., Petrini & Samuels 1980
• Obtectodiscus nectrioides Samuels & Rogerson 1986
• Occultifur corticiorum P. Roberts 1997
• Occultifur externus "J.P. Samp.
• Occultifur interdendron P. Roberts 1997
• Occultifur internus (L.S. Olive) Oberw. 1990
• Occultitheca costaricensis J.D. Rogers & Y.M. Ju 2003
• Ocellaria acellata
• Ocellaria aurantiaca Rehm
• Ocellaria aurantiaca var. aurantiaca Rehm
• Ocellaria aurantiaca var. crataegi (Lasch) Rehm
• Ocellaria aurea var. aurea Tul. & C. Tul. ex P. Karst.
• Ocellaria betuli (Alb. & Schwein.) Rehm
• Ocellaria bresadolae Rehm
• Ocellaria callorioides Rehm
• Ocellaria kirschsteiniana Jaap
• Ocellaria masseeana Sacc. & P. Syd. 1899
• Ocellaria nigrella (Sommerf.) Rehm
• Ocellaria vanillae Henn.
• Ocellularia actinota (Tuck.) Müll. Arg. 1887
• Ocellularia agasthiensis Nagarkar, Sethy & Patw. 1988
• Ocellularia alba var. alba (Fée) Müll. Arg. 1887
• Ocellularia alba var. alba (Fée) Müll. Arg. 1887
• Ocellularia alba var. caesiascens Räsänen 1949
• Ocellularia albida (Nyl.) Zahlbr. 1923
• Ocellularia albidiformis (Leight.) Zahlbr.
• Ocellularia albo-olivacea (Vain.) Zahlbr. 1924
• Ocellularia albogilva (Kremp.) Zahlbr. 1923
• Ocellularia albomaculata Hale 1981
• Ocellularia albula (Nyl.) Zahlbr. 1923
• Ocellularia allospora (Nyl.) Zahlbr. 1923
• Ocellularia allosporiza (Nyl.) Zahlbr. 1923
• Ocellularia allosporoides (Nyl.) Patw. & Kulk. 1977
• Ocellularia almbornii
• Ocellularia americana Hale 1973
• Ocellularia americanum Hale
• Ocellularia amplior (Nyl.) Redinger 1936
• Ocellularia andamanica (Nyl.) Tat. Matsumoto & Deguchi 1999
• Ocellularia annulosa Müll. Arg. 1895
• Ocellularia anomorpha (Nyl.) Riddle 1912
• Ocellularia antillensis Hale 1974
• Ocellularia apayoënsis (Vain.) Zahlbr. 1923
• Ocellularia apayo�nsis (Vain.) Zahlbr. 1923
• Ocellularia arecae (Vain.) Hale 1980
• Ocellularia argillacea Müll. Arg.
• Ocellularia ascidioidea Hale 1981
• Ocellularia asiatica (Vain.) Hale 1980
• Ocellularia astrolucens Sipman 1992
• Ocellularia auberiana (Mont.) Hale 1980
• Ocellularia auberiana det.
• Ocellularia auberianoides (Nyl.) Müll. Arg. 1891
• Ocellularia auratipruinosa Breuss
• Ocellularia aurulenta Hale 1974
• Ocellularia baileyi Müll. Arg. 1891
• Ocellularia bakoensis Nagarkar & Hale 1989
• Ocellularia bataana (Vain.) Zahlbr. 1923
• Ocellularia berkeleiana (mont.) zahlbr.
• Ocellularia bicabata Mull.Arg.
• Ocellularia bicavata (Nyl.) Müll. Arg.
• Ocellularia bonplandiae (Zahlbr.) Müll. Arg.
• Ocellularia bonplandii (Fée) Müll. Arg. 1882
• Ocellularia bonplandii var. bonplandii (Fée) Müll. Arg. 1882
• Ocellularia bonplandii var. obliterata Müll. Arg. 1893
• Ocellularia brasiliana Hale
• Ocellularia brunneospora Homchant. & Coppins
• Ocellularia bullata Hale 1978
• Ocellularia caledoniensis (Hale) Hale 1980
• Ocellularia canara Nagarkar, Sethy & Patw. 1988
• Ocellularia canariana Patw., Sethy & Nagarkar 1986
• Ocellularia capensis Zahlbr. 1932
• Ocellularia capensis var. feracior Zahlbr.
• Ocellularia carnea (Eckfeldt) Zahlbr. 1923
• Ocellularia carneodisca Hale 1975
• Ocellularia carnosula (Kremp.) Zahlbr. 1923
• Ocellularia cavata (Ach.) Müll. Arg. 1882
• Ocellularia cavata var. submutata (Nyl.) Zahlbr.
• Ocellularia chionostoma (Nyl.) Riddle 1917
• Ocellularia chiriquiensis (Hale) Hale 1980
• Ocellularia chonestoma (Leight.) Zahlbr. 1923
• Ocellularia cinchonarum var. cinchonarum (Fée) Spreng.
• Ocellularia cinchonarum var. endocrocea Müll. Arg.
• Ocellularia cinerascens Abbayes 1955
• Ocellularia circumscripta (C. Knight) C.W. Dodge 1970
• Ocellularia clandestina (Ach.) Müll. Arg.
• Ocellularia collativa (Kremp.) Zahlbr. 1923
• Ocellularia comparabilis (Kremp.) Müll. Arg. 1883
• Ocellularia comparabilis var. microcarpa Redinger
• Ocellularia concentrica (Stirt.) Sherwood 1987
• Ocellularia concolor Meyen & Flot. 1843
• Ocellularia conferta (Nyl.) C.W. Dodge 1965
• Ocellularia confluens (Kremp.) Zahlbr. 1923
• Ocellularia conformis (Fée) Hale 1980
• Ocellularia confusa (Hale) Hale 1980
• Ocellularia conglomerata Hale
• Ocellularia conpsoromica Hale 1973
• Ocellularia crassa (Müll. Arg.) Hale 1980
• Ocellularia crispata Müll. Arg. 1895
• Ocellularia crocea (Kremp.) Overeem & D. Overeem 1922
• Ocellularia croceoisidiata Sipman 1992
• Ocellularia croceopora Hale 1981
• Ocellularia cruentata (Mont.) Hafellner & Magnes 1997
• Ocellularia cryptotrema (Nyl.) Kalb 1983
• Ocellularia culmicola
• Ocellularia dactyliza Hale 1978
• Ocellularia decolorata Hale 1978
• Ocellularia deformis Nagarkar & Hale 1989
• Ocellularia defossa Müll. Arg. 1884
• Ocellularia dehiscens (Leight.) Zahlbr. 1923
• Ocellularia diacida Hale 1978
• Ocellularia diffractella Müll. Arg. 1891
• Ocellularia diospyrosis Homchant. & Coppins
• Ocellularia diploschistoides Zahlbr. 1932
• Ocellularia discoidea (Ach.) Müll. Arg. 1887
• Ocellularia discolor (Ach.) Spreng. 1827
• Ocellularia dolichospora (Nyl.) Müll. Arg.
• Ocellularia dolichotata (Nyl.) Zahlbr. 1923
• Ocellularia domingensis (Fée) Müll. Arg. 1887
• Ocellularia dominicana Hale 1974
• Ocellularia elabens Müll. Arg. 1895
• Ocellularia emergens (Vain.) Zahlbr. 1923
• Ocellularia emersa (Kremp.) Müll. Arg. 1886
• Ocellularia endoleuca Müll. Arg. 1895
• Ocellularia endomelaena Müll. Arg. 1893
• Ocellularia epitrypa (Nyl.) Hale 1980
• Ocellularia erumpens (H. Magn.) Hale 1980
• Ocellularia eumorpha (Stirt.) Hale 1980
• Ocellularia eurychades (Kremp.) Nagarkar & Hale 1989
• Ocellularia exanthismocarpa
• Ocellularia excavata (Vain.) Zahlbr.
• Ocellularia excavata var. excavata (Vain.) Zahlbr.
• Ocellularia exigua Müll. Arg. 1892
• Ocellularia exuta Hale 1981
• Ocellularia fecunda (Vain.) Hale 1974
• Ocellularia feigei Sipman
• Ocellularia fernandeziana
• Ocellularia fissa (Nyl.) Hale 1980
• Ocellularia flavescens Homchant. & Coppins
• Ocellularia flavida Hale 1974
• Ocellularia flavomedullosa Nagarkar & Hale 1989
• Ocellularia floridensis Fink ex J. Hedrick
• Ocellularia fumosa (Ach.) Müll. Arg.
• Ocellularia garoana Patw. & Nagarkar 1980
• Ocellularia gentingensis Nagarkar & Hale 1989
• Ocellularia gerardii
• Ocellularia glaucoglyphica Sipman 1992
• Ocellularia glaziovii Müll. Arg. 1895
• Ocellularia globosa Hale 1974
• Ocellularia glyphica (Nyl.) Hale 1980
• Ocellularia goniostoma Müll. Arg. 1891
• Ocellularia gracilis Müll. Arg. 1881
• Ocellularia gracilis var. gracilis Müll. Arg.
• Ocellularia grandis (Hale) Hale 1980
• Ocellularia granulata (Nyl.) Zahlbr.
• Ocellularia granulatula (Nyl.) Zahlbr. 1923
• Ocellularia granulifera (Kremp.) Müll. Arg. 1892
• Ocellularia granulosa (Tuck.) Zahlbr. 1923
• Ocellularia groenhartii Hale 1975
• Ocellularia guptei (Nagarkar, Sethy & Patw.) D.D. Awasthi 1991
• Ocellularia gymnocarpa (Nyl.) Zahlbr. 1923
• Ocellularia gyrostomoides Müll. Arg. 1888
• Ocellularia hawaiiensis
• Ocellularia henatomma (Ach.) Müll. Arg. 1887
• Ocellularia hians (Stirt.) Müll. Arg.
• Ocellularia holospora (Harm.) Zahlbr. 1923
• Ocellularia homothecium (Vain.) Zahlbr.
• Ocellularia inexpectata Nagarkar & Hale 1989
• Ocellularia interponenda (Nyl.) Hale 1980
• Ocellularia interposita (Nyl.) Hale 1980
• Ocellularia interpositum (Nyl.) Hale
• Ocellularia inthanonensis Homchant. & Coppins
• Ocellularia isertii (Vain.) Zahlbr.
• Ocellularia isidiifera Hale 1974
• Ocellularia jamesii (Patw. & C.R. Kulk.) D.D. Awasthi 1991
• Ocellularia jugalis Müll. Arg. 1895
• Ocellularia kanneliyensis Hale 1981
• Ocellularia kansriae Homchant. & Coppins
• Ocellularia karnatakensis Hale 1978
• Ocellularia keralensis Patw. & C.R. Kulk. ex Hale 1981
• Ocellularia kinabaluensis Nagarkar & Hale 1989
• Ocellularia landronii Hale 1978
• Ocellularia lankaensis Hale 1981
• Ocellularia lathraea (Tuck.) Zahlbr. 1923
• Ocellularia latilabra (Tuck.) Müll. Arg. 1895
• Ocellularia leiostoma (Tuck.) R.C. Harris 1990
• Ocellularia lepadinoides (Leight.) Zahlbr. 1923
• Ocellularia leptospora Zahlbr.
• Ocellularia leucina (Müll. Arg.) Hale 1980
• Ocellularia leucomelaena (Nyl.) Hale 1980
• Ocellularia leucomelana (Nyl.) Hale
• Ocellularia leucomelanum (Nyl.) Hale?
• Ocellularia leucotrema (Nyl.) Zahlbr. 1923
• Ocellularia leucotylia (Nyl.) Müll. Arg. 1891
• Ocellularia lirelliformis (Tuck.) Hale 1980
• Ocellularia lithophila Redinger 1936
• Ocellularia maculata Hale 1974
• Ocellularia mahabalei (Patw. & C.R. Kulk.) D.D. Awasthi 1991
• Ocellularia masafuerana
• Ocellularia massalongii (Mont.) Hale 1980
• Ocellularia massalongoi (Mont.) Hale
• Ocellularia mauretiana Hale 1975
• Ocellularia maxima (Hale) Hale
• Ocellularia megalostoma Müll. Arg. 1892
• Ocellularia meiosperma (Nyl.) Hale 1980
• Ocellularia meiospermoides Hale 1981
• Ocellularia melanophthalma Homchant. & Coppins
• Ocellularia melanostoma (Kremp.) Kalb 1983
• Ocellularia melanotremata Hale 1981
• Ocellularia metaphorica (Nyl.) Hale 1980
• Ocellularia microascidia (Vain.) Zahlbr. 1923
• Ocellularia microspora (Zahlbr.) Hale 1980
• Ocellularia monosporoides (Nyl.) Hale 1980
• Ocellularia mordenii Hale 1974
• Ocellularia multilocularis Zahlbr.
• Ocellularia myrioporella (Nyl.) Zahlbr. 1923
• Ocellularia neocavata Hale 1981
• Ocellularia neoleucina Homchant. & Coppins
• Ocellularia neomasonhalei (Patw., Sethy & Nagarkar) D.D. Awasthi 1991
• Ocellularia neopertusariiformis Hale 1981
• Ocellularia nigropuncta Hale 1974
• Ocellularia nostalgica (Saliz.)
• Ocellularia nureliya (Hale) Patw., Sethy & Nagarkar 1986
• Ocellularia nylanderiana Hale
• Ocellularia obovata (Stirt.) Müll. Arg. 1894
• Ocellularia obscura (Hale) Hale 1980
• Ocellularia obturascens (Nyl.) Hale 1987
• Ocellularia obturata (Ach.) Müll. Arg.
• Ocellularia octolocularis (C. Knight) Shirley 1899
• Ocellularia orthomastia (Kremp.) Zahlbr. 1923
• Ocellularia pachyspora
• Ocellularia palaeoamplior Aptroot & Sipman
• Ocellularia panamensis (Hale) Hale 1980
• Ocellularia papillata (Leight.) Zahlbr. 1923
• Ocellularia papuana Müll. Arg. 1884
• Ocellularia parauberiana
• Ocellularia parvula (Kremp.) Zahlbr. 1923
• Ocellularia patagonica Imshaug in sched.
• Ocellularia patwardhanii Hale 1978
• Ocellularia percolumellata Sipman 1994
• Ocellularia peremergens Homchant. & Coppins
• Ocellularia perforata (Leight.) Müll. Arg. 1892
• Ocellularia persimilis (Kremp.) Müll. Arg. 1893
• Ocellularia petrinensis J.C. David 1995
• Ocellularia phaeotropa (Kremp.) Zahlbr. 1923
• Ocellularia phlyctellacea Müll. Arg.
• Ocellularia phlyctidea (Nyl.) Zahlbr. 1923
• Ocellularia planaria (Hale) Hale 1980
• Ocellularia platistoma (C. Montagne) Zahlbruckner
• Ocellularia platycarpella (Vain.) Zahlbr.
• Ocellularia platychlamis M�ll. Arg. 1895
• Ocellularia platychlamys Müll. Arg. 1895
• Ocellularia platystoma (Mont.) Zahlbr. 1923
• Ocellularia plurifaria (Nyl.) Müll. Arg.
• Ocellularia pluripora Hale 1981
• Ocellularia pluriporoides Homchantara & Coppins
• Ocellularia polillensis (Vain.) Hale 1981
• Ocellularia polydisca Redinger 1933
• Ocellularia pomiformis (Kremp.) Overeem & D. Overeem 1922
• Ocellularia poncinsiana Hue 1916
• Ocellularia postposita (Nyl.) A.Frisch
• Ocellularia praestans (Müll. Arg.) Hale 1980
• Ocellularia praestantoides
• Ocellularia protocetraricum
• Ocellularia pruinata Nagarkar & Hale 1989
• Ocellularia psathyroloma Müll. Arg. 1891
• Ocellularia psorbarroensis
• Ocellularia psoromica (Hale) Hale 1980
• Ocellularia pulchra Müll. Arg. 1891
• Ocellularia punctulata (Leight.) Zahlbr. 1923
• Ocellularia pycnophragmia (Nyl.) Zahlbr. 1923
• Ocellularia pycnophragmium (Nyl.) Zahlbr.
• Ocellularia pyrenuloides Zahlbr. 1943
• Ocellularia rassagala Hale 1981
• Ocellularia recondita (Stirt.) Zahlbr. 1923
• Ocellularia retispora R.C. Harris 1990
• Ocellularia rhabdospora (Nyl.) Redinger 1936
• Ocellularia rhicnopora Hale 1981
• Ocellularia rhicnoporoides Homchant. & Coppins
• Ocellularia rhodostroma (Mont.) Zahlbr. 1923
• Ocellularia rimosa Hale 1974
• Ocellularia ripleyi Hale 1974
• Ocellularia rufocincta Müll. Arg.
• Ocellularia sanfordiana (Zahlbr.) Hale 1980
• Ocellularia scolecorpora
• Ocellularia scolecospora C.W. Dodge 1953
• Ocellularia sinuosa Sipman 1992
• Ocellularia sorediata Hale 1974
• Ocellularia stictica (Hale) Hale 1980
• Ocellularia sticticans Hale 1981
• Ocellularia sticticum Hale
• Ocellularia stictidea (Nyl.) Vezda 1969
• Ocellularia straminea (Vain.) Hale 1980
• Ocellularia stylothecia (Vain.)
• Ocellularia subbarroensis
• Ocellularia subcavara
• Ocellularia subcavata (Nyl.) Zahlbr. 1923
• Ocellularia subcrassula (Vain.) Zahlbr.
• Ocellularia subemersa Müll. Arg. 1886
• Ocellularia subleucina Homchant. & Coppins
• Ocellularia sublilacina (Ellis & Everh.) Zahlbr. 1923
• Ocellularia submicrosporoides (Nagarkar, Sethy & Patw.) D.D. Awasthi 1991
• Ocellularia subperforata Nagarkar, Sethy & Patw. 1988
• Ocellularia subpraestans (Hale) Hale 1980
• Ocellularia subsimilis (Hale) Hale 1980
• Ocellularia subterebrata Vezda
• Ocellularia subtilis (Tuck.) Riddle 1920
• Ocellularia suecicum H. Magn.
• Ocellularia tanii Sipman
• Ocellularia tenuis (Hale) Hale 1980
• Ocellularia terebrata (Ach.) Müll. Arg. 1887
• Ocellularia terebrata forma subeminescens (Nyl.) Zahlbr. 1924
• Ocellularia texana (Willey) Zahlbr. 1923
• Ocellularia thelotrematoides Zenker 1827
• Ocellularia thelotremoides (Leight.) Zahlbr.
• Ocellularia thryptica Hale 1973
• Ocellularia trachodes (Nyl.) Zahlbr. 1923
• Ocellularia triglyphica Overeem & D. v. Overeem
• Ocellularia trypanea
• Ocellularia tryphanea
• Ocellularia tuberculata Nagarkar & Hale 1989
• Ocellularia turgidula Müll. Arg. 1893
• Ocellularia udupiensis Patw., Sethy & Nagarkar 1986
• Ocellularia umbilicata Müll. Arg. 1893
• Ocellularia vegae R. Santini
• Ocellularia verrucoisidiata Nagarkar, Sethy & Patw. 1988
• Ocellularia verrucomarginata Patw., Sethy & Nagarkar 1986
• Ocellularia verrucosa (Fée) Hale 1978
• Ocellularia verruculosa H. Magn. 1955
• Ocellularia vieillardi
• Ocellularia violacea Räsänen 1949
• Ocellularia violacea var. glauca Räsänen 1949
• Ocellularia violacea var. violacea Räsänen 1949
• Ocellularia virens (Müll. Arg.) Hale 1980
• Ocellularia viridipallens Müll. Arg. 1887
• Ocellularia viridis Hale 1978
• Ocellularia wandoorensis Nagarkar, Sethy & Patw. 1986
• Ocellularia xantholeuca Müll. Arg. 1891
• Ocellularia xanthostroma (Nyl.) Zahlbr. 1923
• Ocellularia xanthostromiza (Nyl.) Zahlbr. 1923
• Ocellularia zeorina Müll. Arg. 1891
• Ochotrichobolus polysporus Kimbr. & Korf 1983
• Ochroconis crassihumicola (Matsush.) de Hoog & Arx
• Ochroconis gallopavum
• Ochroconis gamsii de Hoog 1985
• Ochroglossum capitatum (F.L. Tai) S. Imai
• Ochroglossum fumosum (Peck) S. Imai
• Ochroglossum longisporum (E.J. Durand) S. Imai
• Ochroglossum rufum (Schwein.) S. Imai
• Ochrolechia africana Vain. 1926
• Ochrolechia aggregata (Bagl.) Verseghy
• Ochrolechia akagiensis Yas. in Vain.
• Ochrolechia alboflavescens f. subfarinosa Verseghy
• Ochrolechia albosorediosa Gyeln.
• Ochrolechia alectoronica Imshaug in sched.
• Ochrolechia androgyna (Hoffm.) Arnold 1885
• Ochrolechia androgyna a
• Ochrolechia androgyna b
• Ochrolechia androgyna c
• Ochrolechia androgyna d
• Ochrolechia androgyna f. granulosa (Räsänen) Verseghy
• Ochrolechia androgyna var. pergranulosa Räsänen
• Ochrolechia androgyna var. saxorum (Oeder) Verseghy
• Ochrolechia antarctica (Müll. Arg.) Darb.
• Ochrolechia antillarum Brodo
• Ochrolechia apiculata Verseghy
• Ochrolechia arborea (Kreyer) Almb. 1949
• Ochrolechia austroamericana (Räsänen) Räsänen
• Ochrolechia balcanica Verseghy
• Ochrolechia blandior (Nyl.) Darb.
• Ochrolechia bryophaga (Erichsen) K. Schmitz & Lumbsch
• Ochrolechia californica Verseghy
• Ochrolechia chilensis Verseghy
• Ochrolechia corsicana ZSCH.
• Ochrolechia croazalsiana clauzade & vezda
• Ochrolechia croazalsiana clauzade
• Ochrolechia crozalsiana Clauzade & V?zda
• Ochrolechia dalmatica (Erichsen) Boqueras
• Ochrolechia deceptionis (Hue) Darb.
• Ochrolechia elisabethae-kolae Verseghy
• Ochrolechia farinacea Howard
• Ochrolechia frigida (Sw.) Lynge 1928
• Ochrolechia frigida f. frigida (Sw.) Lynge
• Ochrolechia frigida f. thelephoroides (Ach.) Lynge
• Ochrolechia frigida forma frigida (Sw.) Lynge 1928
• Ochrolechia frigida forma lapuënsis (Vain.) Coppins 1981
• Ochrolechia frigida frigida
• Ochrolechia gallica Verseghy
• Ochrolechia gowardii
• Ochrolechia grimmiae Lynge
• Ochrolechia groenlandica Verseghy
• Ochrolechia gyalectina (Nyl.) Zahlbr.
• Ochrolechia gyrophorica (A.W. Archer) A.W. Archer & Lumbsch 1997
• Ochrolechia harmandii Verseghy
• Ochrolechia hawaiensis (Räsänen) Verseghy
• Ochrolechia howardii
• Ochrolechia inaequatula (Nyl.) Zahlbr. 1913
• Ochrolechia inversa (Nyl.) J.R. Laundon 1963
• Ochrolechia isidiata (Malme) Verseghy
• Ochrolechia isidiigera Kalb
• Ochrolechia juvenalis Brodo
• Ochrolechia laevigata (Räsänen) Verseghy
• Ochrolechia lapuënsis (Räsänen) Räsänen
• Ochrolechia lapu�nsis (Vain.) R�s�nen 1931
• Ochrolechia macrosperma (Müll. Arg.) R.W. Rogers 1982
• Ochrolechia mahluensis Räsänen
• Ochrolechia malmei Räsänen
• Ochrolechia malmei raesaenen
• Ochrolechia margarita Poelt
• Ochrolechia mexicana Vain.
• Ochrolechia microstictoides Räsänen 1936
• Ochrolechia microstictoides raesaenen
• Ochrolechia montana
• Ochrolechia ocelliformis (Wain.) Vers.
• Ochrolechia oregensis H. Magn. ex Sipe
• Ochrolechia oregonensis H. Magn.
• Ochrolechia orientalis Vain.
• Ochrolechia osorioana Verseghy
• Ochrolechia pacifica H. Magn.
• Ochrolechia pallescens (L.) A. Massal. 1853
• Ochrolechia pallescens f. coronata Verseghy
• Ochrolechia pallescens f. laevigata (Grognot) Verseghy
• Ochrolechia pallescens f. pallescens (L.) A. Massal.
• Ochrolechia pallescens f. pulverulenta Verseghy
• Ochrolechia pallescens var. austroamericana Räsänen
• Ochrolechia pallescens var. hawaiensis Räsänen
• Ochrolechia pallescens var. laevigata Räsänen
• Ochrolechia pallescens var. oceanica Räsänen
• Ochrolechia pallescens var. parella (L.) Körb.
• Ochrolechia palmicola C.W. Dodge
• Ochrolechia papillata (Räsänen) Verseghy
• Ochrolechia parella (L.) A. Massal. 1852
• Ochrolechia parella corticola
• Ochrolechia parella f. angulosa Verseghy
• Ochrolechia parella f. papillata Räsänen
• Ochrolechia parella f. phloeoleuca (Nyl.) Zahlbr.
• Ochrolechia parella f. porinoides anon.
• Ochrolechia parella f. tenuis Verseghy
• Ochrolechia parella forma parella (L.) A. Massal. 1852
• Ochrolechia parella forma phloeoleuca (Nyl.) Zahlbr. 1928
• Ochrolechia parella tumidula
• Ochrolechia parella var. albissima Zschacke
• Ochrolechia parella var. gyrosa Räsänen
• Ochrolechia parella var. immersa Szatala
• Ochrolechia parella var. parella (L.) A. Massal.
• Ochrolechia parella var. saxicola Cretz.
• Ochrolechia parella var. tumidula (Pers.) Arnold
• Ochrolechia parellula
• Ochrolechia parellvla (Müll.Arg.) Zahlbr.
• Ochrolechia pennsylvanica Verseghy
• Ochrolechia pergranulosa (Räsänen) Verseghy
• Ochrolechia pseudopallescens Brodo
• Ochrolechia pseudotartarea (Vain.) Verseghy 1962
• Ochrolechia pterulina (Nyl.) G.E. Howard
• Ochrolechia pustulosa
• Ochrolechia quaterna Imshaug in sched.
• Ochrolechia repaliensis
• Ochrolechia rhamni-purshianae E. Senft
• Ochrolechia rhodoleuca (Th. Fr.) Brodo
• Ochrolechia rosella (Müll. Arg.) Verseghy
• Ochrolechia roseosorediosa Gyeln.
• Ochrolechia sordidogrisea (Erichsen) E. Schreiner & Hafellner
• Ochrolechia sorediosa G.E. Howard
• Ochrolechia spendens Lumbsch & Messuti
• Ochrolechia splendens Lumbsch & Messuti
• Ochrolechia splendida Lumbsch & Messuti ined.
• Ochrolechia subathallina H. Magn. 1940
• Ochrolechia subisidiata Brodo
• Ochrolechia subpallescens Verseghy 1962
• Ochrolechia subplicans (Nyl.) Brodo
• Ochrolechia subplicans hultenii
• Ochrolechia subplicans subplicans
• Ochrolechia subrhodotropa (A.W. Archer) K. Schmitz & Lumbsch 1994
• Ochrolechia subviridis (Høeg) Erichsen 1930
• Ochrolechia szatalaënsis Verseghy
• Ochrolechia szatalaensis Verseghy 1958
• Ochrolechia szatalaensis var. macrospora Verseghy
• Ochrolechia szatalaensis var. szatalaensis Verseghy
• Ochrolechia szatalensis Vers.
• Ochrolechia tartarea (L.) A. Massal. 1928
• Ochrolechia tartarea granulosa
• Ochrolechia tartarea var. effigurata Verseghy
• Ochrolechia tenuissima Verseghy
• Ochrolechia thelotremoides Nyl.
• Ochrolechia tratarea L. subsp. androgyna Hoff.
• Ochrolechia trochophora (Vain.) Oshio
• Ochrolechia trochophora pruinirosella
• Ochrolechia trochophora var. pruinirosella Brodo
• Ochrolechia trochophora var. trochophora (Vain.) Oshio
• Ochrolechia tuckermanii Verseghy
• Ochrolechia tumidula
• Ochrolechia turnei (Sm.) Hasselrot
• Ochrolechia turneri (Sm.) Hasselrot 1945
• Ochrolechia uppsaliensis (L.) Mass.
• Ochrolechia upsaliensis (L.) A. Massal.
• Ochrolechia variolosa
• Ochrolechia verruculosa Kalb
• Ochrolechia weymouthii Jatta 1911
• Ochrolechia xanthostoma (Sommerf.) K. Schmitz & Lumbsch 1994
• Ochroporus cinereus (Niemelä) M. Fisch.
• Ochroporus confusus Donk
• Ochroporus fulvus J. Schröt.
• Ochroporus ossatus M. Fisch.
• Ochropsora anemones (Pers.) Ferd. & Jørgensen{?} 1938
• Ochropsora ariae (Fuckel) Ramsb. 1914
• Ochropsora daisenensis T. Hirats. & Uchida{?} 1960
• Ochropsora kraunhiae (Diet.) Diet.
• Ochropsora nambuana (Henn.) Dietel 1895
• Ochrosphaera meliolae Sawada
• Ocostaspora apilongissima "E.B.G. Jones
• Ocotomyces parasiticus H.C. Evans & Minter 1985
• Octaviania alveolata Cooke & Massee
• Octaviania archeri Berk.
• Octaviania asterosperma Vittad. 1831
• Octaviania borneensis Petri
• Octaviania borziana (Cavara) Svr?ek
• Octaviania brisbanensis (Berk. & Broome) G. Cunn.
• Octaviania brunneola Harkn.
• Octaviania citrina Harkn.
• Octaviania columellifera Kobayasi
• Octaviania cyanescens Trappe & Castellano
• Octaviania densa (Rodway) G. Cunn.
• Octaviania glabra (Rodway) G. Cunn.
• Octaviania hessei Kuntze
• Octaviania hinsbyi
• Octaviania laevis
• Octaviania lamingtonensis (J.W. Cribb) Pegler & T.W.K. Young
• Octaviania levis R. Hesse
• Octaviania lutea R. Hesse
• Octaviania luteocarnea Bres.
• Octaviania macrospora Singer & A.H. Sm.
• Octaviania malaiensis (Corner & Hawker) Pegler & T.W.K. Young
• Octaviania megaspora (Rodway) G. Cunn.
• Octaviania monticola Harkn.
• Octaviania mutabilis R. Hesse
• Octaviania nigrescens J.W. Cribb
• Octaviania occidentalis Harkn.
• Octaviania pallida (Lloyd) Lloyd
• Octaviania pila (Pat.) Svr?ek
• Octaviania plena J.W. Cribb
• Octaviania ravenelii (Berk.) Lloyd
• Octaviania rogersii Singer & A.H. Sm.
• Octaviania rosea Harkn.
• Octaviania seminuda (Massee & Rodway) G. Cunn.
• Octaviania socialis Harkn.
• Octaviania soderstromii (Lagerh.) Lloyd
• Octaviania stillingeri
• Octaviania tasmanica (Kalchbr. ex Massee) Lloyd
• Octaviania tuberculata R. Hesse
• Octaviania variegata Vittad.
• Octavianina asterosperma (Vittad.) Kuntze
• Octavianina macrospora Singer & A. H. Sm.
• Octavianina papyracea
• Octavianina rogersii
• Octavianina tasmanica
• Octavianina tuberculata R. Hesse
• Octospora albidula Hedw.
• Octospora americana Benkert
• Octospora applanata Hedw.
• Octospora araneosa (Bull.) Gam.
• Octospora aurantiaca (Bres.) Svrcek
• Octospora axillaris (Nees) M.M. Moser 1963
• Octospora axillaris var. tetraspora Benkert
• Octospora borealis (Eckblad) Caillet & Moyne
• Octospora bridei Caillet & Moyne
• Octospora bryi-argentei Benkert
• Octospora carbonigena (Berk.) Dennis 1960
• Octospora coccinea (P. Crouan & H. Crouan) Brumm. 1967
• Octospora coccinea var. tetraspora Benkert
• Octospora convexula (Pers.) L.R. Batra 1963
• Octospora craterella (Hedw.) anon.
• Octospora crosslandii (Dennis & Itzerott) Benkert 1976
• Octospora echinospora Caillet & Moyne
• Octospora euchroa (P. Karst.) Berthet
• Octospora fasciculata Hedw.
• Octospora fungoidaster Hedw.
• Octospora gemmicola Benkert
• Octospora grimmiae Dennis & Itzerott
• Octospora gunora
• Octospora gyalectoides Svrcek & Kubicka
• Octospora hirta Hedw.
• Octospora humosa (Fr.) Dennis 1960
• Octospora hygrohypnophila Dissing & Sivertsen
• Octospora insolitata K.B. Khare
• Octospora leucoloma Hedw. 1789
• Octospora leucoloma var. leucoloma Hedw.
• Octospora libussae Svr?ek & Kubi?ka
• Octospora lilacina (Seaver) Svr?ek & Kubi?ka
• Octospora melina (Velen.) Dennis & Itzerott 1973
• Octospora meslinii (Le Gal) Svr?ek & Kubi?ka
• Octospora moravecii
• Octospora musci-muralis Graddon 1972
• Octospora neglecta Dennis & Itzerott 1973
• Octospora orthotricha
• Octospora paradoxa R. Hedw.
• Octospora phagospora (Flageolet & Los Rios) Dennis & Itzerott
• Octospora pleurozii Eckblad
• Octospora pumilata Khara
• Octospora retispora Itzerott & Thate
• Octospora rhizophora Hedw.
• Octospora roxheimii Dennis & Itzerott 1973
• Octospora roxheimii var. aestivalis Caillet & Moyne
• Octospora rubens (Boud.) M.M. Moser 1963
• Octospora rubicosa (Fr.) Hedw.
• Octospora rubricosa
• Octospora rustica (Velen.) J. Moravec 1969
• Octospora scutellata Hedw.
• Octospora semiimmersa
• Octospora similis
• Octospora subglobispora Benkert
• Octospora subhepatica (Rehm) K.B. Khare & V.P. Tewari
• Octospora thumenii (P. Karst.) K.B. Khare & V.P. Tewari
• Octosporella erythrostigma
• Octosporella hemicrypta (Döbbeler) Döbbeler 1980
• Octosporella jungermanniarum (P. Crouan & H. Crouan) Döbbeler 1980
• Octosporella ornithocephala Döbbeler 1980
• Octosporella perforata (Döbbeler) Döbbeler 1980
• Octosporella ptilidii Döbbeler 1988
• Octosporella radulae Döbbeler & Menjívar 1992
• Octosporella urosperma Döbbeler 1980
• Octosporomyces octosporus (Beij.) Kudryavtsev 1960
• Oculimacula acuformis (Boerema, R. Pieters & Hamers) Crous & W. Gams 2003
• Oculimacula yallundae (Wallwork & Spooner) Crous & W. Gams 2003
• Odontia ambigua P. Karst.
• Odontia andina Pat.
• Odontia archeri (Berk.) Wakef.
• Odontia arguta aspera
• Odontia arguta var. arguta (Fr.) Quél.
• Odontia artocreas (Berk. & M.A. Curtis ex Cooke) Bres.
• Odontia badia Pat.
• Odontia barba-jobi
• Odontia calcata Britzelm.
• Odontia capitata G. Cunn.
• Odontia clelandii
• Odontia cretacea Henn. & E. Nyman
• Odontia fallax (Fr.) Quél.
• Odontia fimbriata P. & Fr.
• Odontia flavoargillacea Bres.
• Odontia flexibilis G. Cunn.
• Odontia fragilis G. Cunn.
• Odontia fragilissima (Berk. & M.A. Curtis) C.A. Br.
• Odontia hirta Fuckel
• Odontia hudnoidea (S.) Morg.
• Odontia lactea (P. Karst.) P. Karst.
• Odontia latemarginata Pat. 1897
• Odontia lilacina Bres.
• Odontia lyndoniae D.A. Reid
• Odontia novaezelandiae G. Cunn.
• Odontia paulensis Syd. & P. Syd.
• Odontia pyramidata var. flava Rick
• Odontia sacchari Burt
• Odontia saccharicola Burt
• Odontia schroeteriana Henn.
• Odontia scopinella (Berk.) Berk.
• Odontia secernibilis Berk.
• Odontia stipitata
• Odontia stratosa G. Cunn.
• Odontia subfascicularis
• Odontia subscopinella G. Cunn.
• Odontia tenuis Peck
• Odontia velata (Berk. & M.A. Curtis) Rick
• Odontia verruca H. Furuk.
• Odontia verruculosa G. Cunn.
• Odontia wrightii (Berk. & M.A. Curtis) Pat.
• Odonticium australe D.A. Reid 1981
• Odonticium helgae Hjortstam & Ryvarden 1986
• Odonticium laxum (L.W. Mill.) Ryvarden 1978
• Odonticium monfraguense M.N. Blanco, G. Moreno & Manjón 1989
• Odonticium raitviirii Parmasto
• Odonticium romellii (S. Lundell) Parmasto 1968
• Odontiochaete alba Rick
• Odontiopsis ambigua (Berk. & Broome) Hjortstam 1987
• Odontiopsis hyphodontina Hjortstam & Ryvarden 1980
• Odontodictyospora comasii Mercado 1984
• Odontoschizon parvulum Syd.
• Odontotrema alpinum (Sacc.) L. Holm
• Odontotrema anodontum Nyl.
• Odontotrema belonosporum Nyl.
• Odontotrema intermedium "Diederich
• Odontotrema majusculum Rehm
• Odontotrema minor anon.
• Odontotrema oregonense Sherwood
• Odontotrema pertusariae Etayo, Diederich & Coppins 2002
• Odontotrema phacidiellum Nyl.
• Odontotrema phacidioides Nyl.
• Odontotrema plantagineum P. Karst.
• Odontotrema rauzabagensis P.G. Sathe & Mogarkar{?}
• Odontotrema rhizocarpicola "Zhurb.
• Odontotrema santessonii "Zhurb.
• Odontotrema wegelini (Rehm)
• Oedemium ramorum Fr.
• Oedemium thalictri Jaap
• Oedocephalum albidum Sacc.
• Oedocephalum album Preuss
• Oedocephalum argillaceum Malençon
• Oedocephalum beticola Oudem.
• Oedocephalum byssinum subsp. herbariorum P. Karst. 1888
• Oedocephalum byssinum herbariorum P. Karst. 1888
• Oedocephalum coprophilum Kobayasi
• Oedocephalum crystallinum Ces.
• Oedocephalum elegans Preuss 1851
• Oedocephalum fimetarium (Riess) Sacc.
• Oedocephalum glomerulosum (Bull.) Sacc. 1886
• Oedocephalum glomerulosum forma candidum Demelius 1923
• Oedocephalum glomerulosum var. cantonense Teng 1932
• Oedocephalum guadalcanalense Matsush.
• Oedocephalum laeticolor Berk. & Broome 1865
• Oedocephalum lineatum B.K. Bakshi 1950
• Oedocephalum lunzinense Svilv. 1941
• Oedocephalum nayoroense Ts. Watan.
• Oedocephalum nicotianae Oudem. 1903
• Oedocephalum ochraceum Massee & E.S. Salmon
• Oedocephalum pallidum (Berk. & Broome) Costantin ex Thaxt. 1891
• Oedocephalum piriforme (Bonord.) Sacc.
• Oedocephalum roseum Cooke
• Oedocephalum vuilleminii Sacc.
• Oedogoniomyces lymnaeae Kobayasi & M. Ôkubo 1954
• Oedomyces leproides Trab. & Sacc.
• Oedothea vismiae Syd.
• Oesophagomyces lithobii Manier & Ormières
• Ogataea glucozyma "(Wick.) Y. Yamada
• Ogataea henricii "(Wick.) Y. Yamada
• Ogataea kodamae (Van der Walt & Yarrow) Mikata & Y. Yamada
• Ogataea minuta var. minuta "(Wick.) Y. Yamada
• Ogataea minuta var. nonfermentans "(Wick.) Y. Yamada
• Ogataea wickerhamii "(Capr.) Y. Yamada
• Ohleria brasiliensis Starbäck
• Ohleria modesta Fuckel
• Ohleria obducens G. Winter 1871
• Ohleria quercicola Fabre
• Ohleria rugulosa Fuckel 1870
• Ohleria ulmi Fabre
• Oidiodendron ambiguum Peyronel & Malan 1949
• Oidiodendron cereale (Thüm.) G.L. Barron 1962
• Oidiodendron cerealis (Thüm.) G.L. Barron
• Oidiodendron chlamydosporicum Morrall 1968
• Oidiodendron citrinum G.L. Barron 1962
• Oidiodendron echinulatum G.L. Barron 1962
• Oidiodendron fimicola A.V. Rice & Currah
• Oidiodendron flavum Svilv. 1941
• Oidiodendron flavum von
• Oidiodendron griseum Robak 1934
• Oidiodendron hughesii Udagawa & Uchiy.
• Oidiodendron kalrai R.P. Tewari & Macph.
• Oidiodendron maius G.L. Barron 1962
• Oidiodendron majus
• Oidiodendron muniellense
• Oidiodendron myxotrichoides "M. Calduch
• Oidiodendron periconioides Morrall 1968
• Oidiodendron pilicola Kobayasi 1969
• Oidiodendron ramosum E.G. Simmons
• Oidiodendron reticulatum ined.
• Oidiodendron rhodogenum Robak 1932
• Oidiodendron robustum Mercado & R.F. Castañeda
• Oidiodendron scytaloides W. Gams & B.E. Söderstr. 1983
• Oidiodendron setiferum Essl. 1987
• Oidiodendron sindenia
• Oidiodendron tenuissimum (Peck) S. Hughes 1958
• Oidiodendron terrestre R.Y. Roy & G.N. Singh
• Oidiodendron truncatum G.L. Barron 1962
• Oidiopsis convolvuli K.B. Deshp. & Rajd.
• Oidiopsis gossypii (Wakef.) Raych.
• Oidiopsis haplophylli (H. Magn.) Rulamort
• Oidiopsis oxalidis J.M. Yen
• Oidiopsis thryallidis A. Pande & V.G. Rao
• Oidites moniliformis J.A. Menge & Göpp.
• Oidites thuigenus Göpp. & J.A. Menge
• Oidium abelmoschi Thüm.
• Oidium abortifaciens J. Kickx f.
• Oidium acanthospermi Chidd.
• Oidium ailanthi "P.K. Dubey
• Oidium ailanthii "P.K. Dubey
• Oidium album Sumst.
• Oidium ambrosiae Thüm.
• Oidium anacardii F. Noack 1898
• Oidium anguineum Fresen.
• Oidium anthemidis Thüm.
• Oidium arachidis Chorin 1961
• Oidium araliacearum U. Braun & Oehrens
• Oidium astaci Happich{?}
• Oidium aurantium Cooke
• Oidium aureofulvum (Cooke & Ellis) Linder
• Oidium baccharidis Havryl. & U. Braun
• Oidium balsaminae Rajd.
• Oidium bauhiniae G.J.M. Gorter & Eicker
• Oidium bixae Viégas
• Oidium botryoides Ces.
• Oidium brasiliense O. Magalh.
• Oidium braunii Hosag.
• Oidium buddlejae G.J.M. Gorter & Eicker
• Oidium bulbigerum (Bonord.) Sacc. & Voglino
• Oidium caesalpiniacearum Hosag. & U. Braun
• Oidium calanchoeae Lüstner ex U. Braun
• Oidium camemberti P. Mazé
• Oidium candicans (Sacc.) Linder 1942
• Oidium candidum Schwein.
• Oidium caricae-papayae J.M. Yen 1966
• Oidium caricicola J.M. Yen & Chin C. Wang
• Oidium carpini Foitzik 1995
• Oidium carthami Jacz.
• Oidium cassiae-siameae J. M. Yen
• Oidium ceratoniae Comes
• Oidium chartarum Link 1824
• Oidium chrysanthemi Rabenh. 1853
• Oidium cinerariae anon.
• Oidium cinnamomi (J.M. Yen) U. Braun
• Oidium citri (J.M. Yen) U. Braun
• Oidium clitoriae Narayanas. & K. Ramakr.
• Oidium concentricum Berk. & Broome
• Oidium corrientense M. G. Cabrera & R. A. Ã�lvarez
• Oidium crotalariae "(Cif. & Gonz. Frag.) Hosag.
• Oidium crystalinum Lév.
• Oidium crystallinum Lév.
• Oidium cucurbitaceae anon.
• Oidium cyclaminis Wenzl
• Oidium cydoniae Pass.
• Oidium cyparissiae Syd. 1897
• Oidium cyperissae Syd.
• Oidium dendrophthoë (Bhagyan. & Ramachar) Bhagyan. & Ramachar
• Oidium dianthi Jacz.
• Oidium drummondii Thüm.
• Oidium emiliae-sonchifoliae Sawada
• Oidium epilobii (Corda) Desm.
• Oidium ericinum Erikss. 1885
• Oidium erysifoidis
• Oidium erysiphoidis
• Oidium eucalypti Rostr.
• Oidium euphorbiae-hirtae J.M. Yen 1966
• Oidium eupiphoides Fr.
• Oidium evonymi (Arcang.) Salm.
• Oidium evonymi-japonicae Sacc.
• Oidium evonymi-japonici (Arc.) Sacc.
• Oidium fasciculatum Berk.
• Oidium fructigenum
• Oidium haplophylli H. Magn.
• Oidium hardenbergiae Boesew.
• Oidium heveae B.A. Steinm. 1925
• Oidium hiratae U. Braun
• Oidium hortensiae Jørst. 1925
• Oidium hyssopi Erikss.
• Oidium indicum Kamat
• Oidium indigoferae J.M. Yen
• Oidium insolitum "U. Braun
• Oidium ipomoeae (J.M. Yen & Chin C. Wang) U. Braun
• Oidium irregulare Peck
• Oidium ladaniferi Thüm.
• Oidium lagasceae Chidd.
• Oidium lauracearum Graniti & U. Braun 1998
• Oidium leptadeniae
• Oidium leuckartii H. Hoffm.
• Oidium leucococinum
• Oidium lippiae Thüm.
• Oidium longipes Noordel. & Loer.
• Oidium lycopersici Cooke & Massee 1888
• Oidium lycopersicum Cooke & Massee
• Oidium magnisporum Linder
• Oidium mangiferae Berthet 1914
• Oidium manihoticola "Hosag.
• Oidium manihotis Henn.
• Oidium martii Lév. erysiphoides Fr.
• Oidium matalense Castell.
• Oidium megalosporum Speg.
• Oidium menzieziae Unam.
• Oidium monosporium Westend.
• Oidium morgani Linder
• Oidium murrayae "Hosag.
• Oidium mutisiae Havryl.
• Oidium necans
• Oidium neolycopersici L. Kiss 2001
• Oidium nephelii Hadiw. ex U. Braun
• Oidium nubilum Weigmann & A. Wolff
• Oidium ocimi
• Oidium papayae Marta Seq.
• Oidium papillatum (Bonord.) Sacc. & Voglino
• Oidium parthenii Satyapr. & Ushar.
• Oidium passifloracearum Hosag.
• Oidium passiflorae Politis
• Oidium pavoniae Bagyan. & U. Braun
• Oidium peltophori (W. Y. Yen) Boesew.
• Oidium phyllanthi J.M. Yen
• Oidium piperis "Uppal
• Oidium pseudolongipes U. Braun & Gabler
• Oidium pullorum Jungherr
• Oidium pullulans Lindner
• Oidium pulmoneum J.H. Benn.
• Oidium pulvinatum Berk. & M.A. Curtis
• Oidium quercinu Thüm.
• Oidium quercinus Thüm.
• Oidium quinckeanum Zopf
• Oidium rivinae "Bagyan.
• Oidium robustum U. Braun & Oehrens
• Oidium roseum Zenoni
• Oidium ruborum Sacc.
• Oidium saintpauliae Gorlenko ex U. Braun
• Oidium santalacearum U. Braun & Hosag.
• Oidium schmiedeknechtii U. Braun
• Oidium scopariae (N.D. Sharma & A.C. Jain) Bhagyan. & Ramachar
• Oidium sesami (Y.S. Paul & J.N. Kapoor) Hosag., Vijay., Udaiyan & Manian 1992
• Oidium spirale M.B. Ellis ined.
• Oidium stachytarphetae J.M. Yen
• Oidium suaveolens Krzemecki
• Oidium subtile R. Blanch.
• Oidium succisae Karl
• Oidium syringae S. Blumer
• Oidium temerum
• Oidium tingitaninum J.C. Carter
• Oidium tonsurans Zopf
• Oidium tritici Lib.
• Oidium verbenacae Pass.
• Oidium verbenacea Pass.
• Oidium verbenaceae Pass.
• Oidium verbenae Thüm. & P.C. Bolle
• Oidium ziziphi (J.M. Yen & Chin C. Wang) U. Braun
• Oidospora anomala Will.
• Ojibwaya perpulchra B. Sutton 1973
• Oleina lateralis Tiegh.
• Oleina nodosa Tiegh.
• Oleinis lateralis (Tiegh.) Clem.
• Oligoporus africanus Ryvarden
• Oligoporus alni (Niemelä & Vampola) Pi?tek
• Oligoporus bambusicola (Corner) T. Hatt.
• Oligoporus friesii Falck & O. Falck
• Oligoporus hydnoidea G. Gaarder & Ryvarden
• Oligoporus leucospongius (Cooke & Harkn.) Gilb. & Ryvarden
• Oligoporus manuka (G. Cunn.) P.K. Buchanan & Ryvarden
• Oligoporus mappus (Overh. & J. Lowe) Gilb. & Ryvarden
• Oligoporus norrlandicus Berglund & Ryvarden
• Oligoporus parvus
• Oligoporus perplexus (Corner) T. Hatt.
• Oligoporus placenta
• Oligoporus rennyii (Berk. & Broome) Donk
• Oligoporus rubescens Bref.
• Oligoporus subfragilis (Corner) T. Hatt.
• Oligoporus subpendulus (G.F. Atk.) Gilb. & Ryvarden
• Oligoporus wynnei (Berk. & Br.)
• Oligostroma graphis (A. L. Smith)
• Oligostroma suttoniae F. Stevens
• Oligostroma zelandicum Syd.
• Olivea capituliformis (Henn.) Arthur 1917
• Olivea colebrookiana Thirum. & Yadav 1955
• Olivea fimbriata (Mains) Cummins & Y. Hirats. 1983
• Olivea isonandrae Hosag. 1989
• Olivea petitiae Arthur 1917
• Olivea scitula Syd. 1937
• Olivea tectonae (T.S. Ramakr. & K. Ramakr.) Thirum. 1949
• Olivea viticis Y. Ono & J.F. Hennen 1984
• Oliven frynseskive
• Oliveonia citrispora (Hauerslev) P. Roberts 1998
• Oliveonia fibrillosa (Burt) Donk 1958
• Oliveonia nodosa (Hauerslev) P. Roberts 1998
• Oliveonia pauxilla (H.S. Jacks.) Donk 1958
• Oliveonia termitophila (Oberw. & Ryvarden) P. Roberts 1998
• Olla minuta Velen.
• Olla sambuci Velen.
• Olla transiens (Höhn.) Baral
• Olla ulmariae Velen.
• Ollula lignicola Höhn.
• Olpidiella uredinis Lagerh.
• Olpidiomorpha pseudosporae Scherff.
• Olpidium aggregatum P.A. Dang.
• Olpidium agrostidis Sampson 1932
• Olpidium algarum Sorok?n
• Olpidium allomycetos Karling
• Olpidium appendiculatum Karling
• Olpidium bornovanus (Sahtiy.) Karling
• Olpidium borzii De Wild.
• Olpidium bothriospermi Sawada
• Olpidium brassicae (Woronin) P.A. Dang. 1886
• Olpidium bryopsidis de Bruyne
• Olpidium caudatum Reinsch
• Olpidium diplochytrium (Tomaschek) J. Schröt.
• Olpidium endogenum (A. Braun) J. Schröt.
• Olpidium euglenae P.A. Dang.
• Olpidium fulgens (Zopf) Karling
• Olpidium granulatum Karling
• Olpidium gregarium (Nowak.) J. Schröt. 1886
• Olpidium hantzschiae Skvortsov
• Olpidium hyalothecae Scherff.
• Olpidium immersum Sorok?n
• Olpidium incognitum S.N. Dasgupta & R. John
• Olpidium indicum Karling
• Olpidium laguncula H.E. Petersen
• Olpidium lauderiae Gran
• Olpidium longicollum Uebelm.
• Olpidium longum S.N. Dasgupta & R. John
• Olpidium luxurians (Tomaschek) A. Fisch.
• Olpidium macrosporum (Nowak.) J. Schröt.
• Olpidium marinum P.A. Dang.
• Olpidium maritimum Höhnk & Aleem
• Olpidium mougeotia Skvortsov
• Olpidium nematodae Skvortsov
• Olpidium nematodeae Skvortsov
• Olpidium paradoxum Glockling
• Olpidium pendulum Zopf 1890
• Olpidium poreferum Kiran & Dayal
• Olpidium protonemae Skvortsov
• Olpidium pseudoeuglenae S.N. Dasgupta & R. John
• Olpidium pseudosporearum Scherff.
• Olpidium radicale Schwartz & P. Cook{?} 1928
• Olpidium rhizophlyctidis Sparrow
• Olpidium rostriferum Ivimey Cook
• Olpidium rotiferum Karling
• Olpidium saccatum Sorok?n
• Olpidium sacchari M.T. Cook
• Olpidium sparrowii Dogma
• Olpidium sphaeropleae Tokun.
• Olpidium synchytrii Karling
• Olpidium trifolii (Pass.) J. Schröt.
• Olpidium tuba Sorok?n
• Olpidium uredinis (Lagerh.) A. Fisch.
• Olpidium utriculiforme Scherff.
• Olpidium vampyrellae Scherff.
• Olpidium vermicola G.L. Barron & Szijarto
• Olpidium viciae Kusano
• Olpidium virulentus (Sahtiy.) Karling
• Olpidium zootocum (A. Braun) J. Schröt.
• Olpidium zopfianus (Morini) Karling
• Olpitrichum macrosporum (Farl. ex Sacc.) Sumst. 1911
• Olpitrichum patulum (Sacc. & Berl.) Hol.-Jech. 1974
• Olpitrichum sphaerosporum Matsush. 1975
• Olpitrichum tenellum (Berk. & M.A. Curtis) Hol.-Jech. 1975
• Omalycus violacinus Raf.
• Ombrophila ambigua Höhn. 1918
• Ombrophila aurea (Fuckel) Sacc.
• Ombrophila baeumleri Rehm 1885
• Ombrophila bakeriana Rehm
• Ombrophila baumleri Rehm
• Ombrophila blumenaviensis Henn.
• Ombrophila chilensis (Mont.) Sacc.
• Ombrophila decolorans (Berk. & M.A. Curtis) Sacc. 1889
• Ombrophila gelatinosa Rehm
• Ombrophila geralensis Henn.
• Ombrophila glycerincola Rehm
• Ombrophila heliotioides Rehm
• Ombrophila helotioides Rehm 1899
• Ombrophila hemiamyloidea Baral & Gminder
• Ombrophila hirtella Rehm
• Ombrophila janthina P. Karst.
• Ombrophila kriegeriana Rabh.
• Ombrophila lilacina (Wulfen) P. Karst.
• Ombrophila limosella (P. Karst.) Rehm
• Ombrophila microspora (Ellis & Everh.) Sacc. & P. Syd.
• Ombrophila morthierana Rehm
• Ombrophila morthieriana Rehm
• Ombrophila nigrescens Henn.
• Ombrophila nigripes (Pers.) Boud. 1907
• Ombrophila obstricta P. Karst. 1889
• Ombrophila prasinula P. Karst.
• Ombrophila pura foliacea
• Ombrophila purpurea (Fuckel) W. Phillips 1887
• Ombrophila rubescenti-rosea Rehm
• Ombrophila rudis (Berk.) W. Phillips 1887
• Ombrophila sanguinea Rehm
• Ombrophila squalida P. Karst.
• Ombrophila subcerinea Rehm
• Ombrophila subspadicea Rehm
• Ombrophila subsqualida Rehm
• Ombrophila terrestris W. Phillips
• Ombrophila thujina Peck
• Ombrophila tschatcalica Raitv.
• Ombrophila violacea (Hedw.) Fr. 1849
• Ombrophila vitrea Velen.
• Omega coenobiticum B. Sutton & Minter 1988
• Ommatomyces coronatus "Kohlm.
• Ommatomyces terrestris "You Z. Wang
• Ommatospora roraimensis Bat. & Cavalc.
• Ommatosporella burseracearum Bat., J.L. Bezerra & Poroca 1967
• Omnidemptus affinis P.F. Cannon & Alcorn 1994
• Omphalaria cubana Tuck.
• Omphalaria decipiens A. Massal.
• Omphalaria kansana Tuck.
• Omphalaria nodulosa (Nyl.) Harm.
• Omphalaria notarisii A. Massal.
• Omphalaria nummularia Mont.
• Omphalaria pulvinata var. laxa Müll. Arg.
• Omphalaria pulvinata var. pulvinata (Schaer.) Nyl.
• Omphalaria pulvinata var. schleicheri Hepp
• Omphalaria umbella Tuck.
• Omphalaria wrightii Tuck.
• Omphalia affricata (Berk. & Broome) Gillet
• Omphalia albidula Peck
• Omphalia alboflava (Morgan) Sacc.
• Omphalia alutacea
• Omphalia anthiceps Berk. & M.A. Curtis
• Omphalia aurantiaca Peck
• Omphalia bicolor (Murrill) Murrill
• Omphalia bresadolae Maire
• Omphalia bruchii Speg.
• Omphalia bullula (V. Brig.) Sacc.
• Omphalia byssiseda Bres.
• Omphalia caespitosa (Bolton) Cooke
• Omphalia campaniella Batsch
• Omphalia chrysoleuca (Pers.) P. Karst.
• Omphalia clavata Peck
• Omphalia clusiliformis Kühner & Romagn.
• Omphalia colensoi Berk.
• Omphalia conspersa Velen.
• Omphalia corticola Peck
• Omphalia curvipes Peck
• Omphalia discorosea Pilát
• Omphalia euspeirea (Berk. & M.A. Curtis) Overh.
• Omphalia fibuloides Peck
• Omphalia giovanellae Bres.
• Omphalia glaucophylla (Lasch) Sacc.
• Omphalia kalchbrenneri Bres.
• Omphalia lapidescens (Horan.) Cohn & J. Schröt.
• Omphalia leonina Massee
• Omphalia lundellii Pilát
• Omphalia luteola Peck
• Omphalia marginella (Pers.) Joss.
• Omphalia martensii Henn.
• Omphalia mellea (Murrill) Murrill
• Omphalia ndianensis Henn.
• Omphalia nigerrinus
• Omphalia orickiana A.H. Sm.
• Omphalia paucifolia (Murrill) Murrill
• Omphalia pectinata Romell
• Omphalia peculiaris (Britzelm.) Sacc.
• Omphalia pfeifferi
• Omphalia pigmentata Bliss 1938
• Omphalia polypus Kalchbr.
• Omphalia pusillissima Peck
• Omphalia ralumensis Henn.
• Omphalia rosarum Velen.