• Absconditella antarctica Søchting & Vězda, 2004
• Abyssomyces hydrozoicus Kohlm., 1970
• Acarospora austroshetlandica (C.W. Dodge) Øvstedal, 2001
• Acarospora badiofusca (Nyl.) Th. Fr., 1860
• Acarospora convoluta Darb., 1912
• Acarospora flavocordia Castello & Nimis, 1994
• Acarospora fuscata (Nyl.) Th. Fr., 1871
• Acarospora gwynnii C.W. Dodge & E.D. Rudolph, 1955
• Acarospora macrocyclos Vain., 1903
• Acarospora nitrophila H. Magn., 1924
• Acarospora privigna (Ach.) A. Schneid., 1898
• Acarospora smaragdula (Wahlenb.) A. Massal., 1852
• Acarospora veronensis A. Massal., 1852
• Acarospora wahlenbergii H. Magn., 1929
• Acarospora williamsii Filson, 1966
• Acremonium fuci Summerb., Zuccaro & W. Gams, 2004
• Acremonium furcatum C. Moreau & Moreau ex W. Gams, 1969
• Acremonium kiliense Grütz, 1925 accepted as Sarocladium kiliense (Grütz) Summerb., 2011
• Acremonium neocaledoniae Roquebert & J. Dupont, 2000
• Acremonium obclavatum W. Gams, 1984 accepted as Simplicillium obclavatum (W. Gams) Zare & W. Gams, 2001
• Acremonium persicinum (Nicot) W. Gams, 1971
• Acremonium polyaleurum (Tubaki) E.B.G. Jones, Sakay., Suetrong, Somrith. & K.L. Pang, 2009 accepted as Acremonium tubakii W. Gams, 1971 accepted as Emericellopsis tubakii (W. Gams) L.W. Hou, L. Cai & Crous, 2023
• Acremonium potronii Vuill., 1910
• Acremonium psychrophilum C. Möller & W. Gams, 1993
• Acremonium strictum
• Acremonium tenuicristatum S. Ueda & Udagawa, 1983
• Acremonium tubakii W. Gams, 1971 accepted as Emericellopsis tubakii (W. Gams) L.W. Hou, L. Cai & Crous, 2023
• Acrocordiopsis patilii Borse & K.D. Hyde, 1989
• Acrocordiopsis sphaerica Alias & E.B.G. Jones, 1999
• Acrodontium antarcticum Cabello, 1989
• Acrospermum antarcticum Speg., 1887
• Acrostalagmus aphidum Oudem., 1902
• Acrostalagmus luteoalbus (Link) Zare, W. Gams & Schroers, 2004
• Actinostilbe flocculenta (Henn. & E. Nyman) Rossman, Samuels & Seifert, in Rossman et al., 2013
• Adomia avicenniae S. Schatz, 1985
• Aegeanispora elanii E.B.G. Jones & Abdel-Wahab, in Abdel-Wahab et al., 2017
• Agonimia gelatinosa (Ach.) M. Brand & Diederich, 1999
• Agonimia loekoesii S.Y. Kondr., J.P. Halda & Hur, 2016
• Agyrium antarcticum Rehm, 1899
• Aigialus grandis Kohlm. & S. Schatz, 1986
• Aigialus mangrovis Borse, 1987
• Aigialus parvus S. Schatz & Kohlm., 1986
• Aigialus rhizophorae Borse, 1987
• Aigialus striatispora K.D. Hyde, 1992
• Alectoria antarctica C.W. Dodge & G.E. Baker, 1938
• Alectoria corymbosa Hue, 1908 accepted as Ramalina corymbosa (Hue) Kotlov, 2004
• Alectoria nigricans (Ach.) Nyl., 1861
• Alisea longicolla J. Dupont & E.B.G. Jones, 2009
• Allescheria terrestris Apinis, 1963 accepted as Thielavia terrestris (Apinis) Malloch & Cain, 1972
• Alternaria alternata (Fr.) Keissl., 1912
• Alternaria brassicae (Berk.) Sacc., 1880
• Alternaria dauci (J.G. Kühn) J.W. Groves & Skolko, 1944
• Alternaria dianthi J.V. Almeida & Sousa da Câmara, 1903
• Alternaria maritima G.K. Sutherl., 1916
• Alternaria radicina Meier, Drechsler & E.D. Eddy, 1922
• Alternaria solani (Ellis & G. Martin) L.R. Jones & Grout, 1896
• Alternaria tenuis Nees, 1816 accepted as Alternaria alternata (Fr.) Keissl., 1912
• Alternaria tenuissima (Kunze) Wiltshire, 1933
• Amandinea augusta (Vain.) Søchting & Øvstedal, 2004
• Amandinea babingtonii (Hook. f. & Taylor) Søchting & Øvstedal, 2004
• Amandinea clearyi Elix & Øvstedal, 2020
• Amandinea coniops (Wahlenb.) M. Choisy ex Scheid. & H. Mayrhofer, 1993
• Amandinea deminuta Hafellner, 2004
• Amandinea devilliersiana Elix & Kantvilas, 2013
• Amandinea falklandica (Darb.) Elix & Kantvilas, 2013
• Amandinea insperata (Nyl.) H. Mayrhofer & Ropin, 2000
• Amandinea isabellina Søchting & Øvstedal, 2004
• Amandinea latemarginata (Darb.) Søchting & Øvstedal, 2004
• Amandinea petermannii (Hue) Matzer, H. Mayrhofer & Scheid., 1994
• Amandinea punctata (Hoffm.) Coppins & Scheid., 1993
• Amandinea windmillensis Elix, 2019
• Amarenographium metableticum (Trail) O.E. Erikss., 1982 accepted as Amarenomyces ammophilae (Lasch) O.E. Eriksson, 1981
• Amarenomyces ammophilae (Lasch) O.E. Eriksson, 1981
• Amorosia littoralis Mantle & D. Hawksw., 2006
• Amphiloma millegranum Müll. Arg., 1886 accepted as Austroplaca millegrana (Müll. Arg.) Søchting, Frödén & Arup, 2013
• Amphisphaeria biturbinata (Durieu & Montagne) Saccardo, 1882
• Amphisphaeria culmicola Sacc., 1873
• Amphisphaeria fusispora (Syd. & P. Syd.) Teng, 1938
• Amphisphaeria maritima Linder, 1944 accepted as Kirschsteiniothelia maritima (Linder) D. Hawksw., 1985
• Amphisphaeria posidoniae (Durieu & Montagne) Cesati & de Notaris accepted as Halotthia posidoniae (Durieu & Mont.) Kohlm., 1963
• Amundsenia approximata (Lynge) Søchting, Arup & Frödén, 2014
• Amundsenia austrocontinentalis Garrido-Ben., Søchting, Pérez-Ort. & Seppelt, 2014
• Amylocarpus encephaloides Currey, 1859
• Anaptychia fusca (Huds.) Vain., 1899
• Anaptychia runcinata (With.) J.R. Laundon, 1984
• Anguillospora marina Nakagiri & Tubaki, 1983
• Aniptodera chesapeakensis Shearer & Miller, 1977
• Aniptodera haispora Vrijmoed, K.D. Hyde & E.B.G. Jones, 1994
• Aniptodera intermedia K.D. Hyde & Alias, 1999
• Aniptodera juncicola Volkm.-Kohlm. & Kohlm., 1994
• Aniptodera limnetica Shearer, 1989
• Aniptodera longispora K.D. Hyde ined.
• Aniptodera mangrovei K.D. Hyde, 1986
• Aniptodera nypae K.D. Hyde, 1994
• Aniptodera salsuginosa Nakagiri & Tad. Ito, 1994
• Anisostagma rotundatum K.R.L. Petersen & Jørg. Koch, 1996
• Antarctomyces psychrotrophicus Stchigel & Guarro, 2001
• Antennospora caribbea Meyers, 1957
• Antennospora quadricornuta (Cribb & J.W. Cribb) T.W. Johnson, 1958
• Antennospora salina (Meyers) Yusoff, E.B.G. Jones & S.T. Moss accepted as Haiyanga salina (Meyers) K.L. Pang & E.B.G. Jones, 2008