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Abrothallus friesii Hepp; Ascomycetes
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Acarospora friesii H. Magn. (1935); Acarosporaceae
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Agaricus friesii Jungh. / Lasch (1828); Agaricaceae
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Agaricus friesii Lév. (1844); Agaricaceae
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Arcyria friesii Berk. & Broome; Arcyriaceae
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Argopsis friesiana [auct.?]; Brigantiaeaceae
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Aspicilia friesii (Lynge) Oksner (1972); Hymeneliaceae
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Asterocyphella friesii (P. & H. Crouan) W.B. Cooke (1961); [ex Calyptella Quél. (1886), ex Chaetocypha Kuntze (1891)]; Cyphellaceae
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Bacidia friesiana (Hepp) Körb. (1860); [ex Biatora, Biatorina Hepp (1857 Bacidiaceae
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Berengeria friesiana; Physciaceae
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Boletus friesii Inzenga; Boletaceae
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Caloplaca friesii H. Magn. (1950); Teloschistaceae
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Cantharellus friesii Welw. & Curr. (1869); Cantharellaceae
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Chondrioderma friesianum Rostaf.; Didymiaceae
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Ciboria friesii Pers.; Sclerotiniaceae
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Collybia friesii Bres. (1928), (= Baeospora myosura); Marasmiaceae
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Comatricha friesiana (de Bary) Rostaf. (1874); Stemonitidaceae
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Conisphaeria friesii (Nitschke) Cooke, (= Melomastia mastoidea); Xylariales
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Conocybe friesii S. Lundell (1953), (= Conocybe pygmaeoaffinis); Bolbitiaceae
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Coprinopsis friesii (Quél.) P. Karst. (1881); [ex Coprinus Quél. (1872)]; Psathyrellaceae
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Corticium friesii Grognot; Corticiaceae
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Cortinarius friesianus Carteret & Reumaux (2001); Cortinariaceae
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Cortinarius friesii N. Lund; Cortinariaceae
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Cortinarius friesii Bres. & Schulzer; Cortinariaceae
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Craterium friesii Rostaf.; Physaraceae
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Cyphella friesii Weinm.; Cyphellaceae
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Cyphella friesii P. Crouan & H. Crouan (1867), (= Asterocyphella friesii); Cyphellaceae
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Cytospora friesii Sacc.; Anamorphe de Valsa
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Echinoderma friesii (Lasch) Bon (1993), [ex Cystolepiota Bon (1977)]; (= Lepiota aspera); Agaricaceae
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Enchnoa friesii Fuckel; Nitschkiaceae
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Erineum friesii A. Braun; Fungi
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Erysiphe friesii (Lév.) U. Braun & S. Takam. (2000) [ex Microsphaera Lév. (1851); Erysiphaceae
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Exidia friesiana P. Karst.; Exidiaceae
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Favolaschia frieseana Henn. (1895); Marasmiaceae
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Favolus friesii Berk. & M.A. Curtis (1868); Polyporaceae
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Gloeocystidiellum friesii S. Lundell,; Stereaceae
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Gloeocystidium friesii S. Lundell (1950); Meruliaceae
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Gyalecta friesii (A. Massal.) Körb. (1855); Gyalectaceae
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Helotium friesii (Weinm.) Sacc. (1889), (= Hymenoscyphus friesii); Helotiaceae
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Helvella friesiana Cooke; Helvellaceae
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Hexagonia friesiana Speg. (1884), (= Trametes villosa); Polyporaceae
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Hirschioporus friesii (Klotzsch) D.A. Reid (1975), (= Trichaptum biforme); Polyporaceae
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Hjortstamia friesii (Lév.) Boidin & Gilles (2003); Phanerochaetaceae
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Hygrophorus friesii Sacc. (1887); Hygrophoraceae
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Hymenoscyphus friesii (Weinm.) Arendh. (1979); Helotiaceae
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Hypocenomyce friesii (Ach.) P. James & Gotth. Schneid. (1980); [ex Lecidea Ach. (1816), Biatora Tuck. (1888)]; Lecideaceae
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Lecidea friesii Ach. (1816), (= Hypocenomyce friesii); Lecideaceae
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Hysterites friesii Nath. (1878); Champignon fossile
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Inocybe friesii R. Heim (1931), (= Inocybe nitidiuscula); Cortinariaceae
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Isaria friesii Mont. (1836); Anamorphe d' Ascomycetes
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Laschia frieseana (Henn.) Sacc. (1899); Steccherinaceae
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Lecanora friesii Lynge (1937); Lecanoraceae
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Lepiota friesii (Lasch) Quél. (1872), [ex Agaricus Lasch (1828)] (= Lepiota aspera); Agaricaceae
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Lecanora friesiana; Lecanoraceae
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Lecidea friesiana; Lecideaceae
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Lycogala friesiana Hall{?}; Reticulariaceae
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Marasmius friesianus Henn.; Marasmiaceae
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Marasmius friesii (Bres.) Rea (1932), (= Baeospora myosura); Marasmiaceae
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Mastomyces friesii Mont. (1848); Anamorphe de Godronia
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Melanoleuca friesii (Bres.) Bon (1978); Tricholomataceae
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Melomastia friesii Nitschke (1871), (= Melomastia mastoidea); Xylariales
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Merulius friesii (Quél.) Kuntze (1891), (= Cantharellus friesii); Cantharellaceae
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Microporellus friesii (Klotzsch) Ryvarden (1972), (= Trichaptum biforme); Polyporaceae
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Mycosphaerella friesii Tomilin (1979); Mycosphaerellaceae
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Obryzum friesii (Keissl.) Nik. Hoffm. & Hafellner (2000); Obryzaceae
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Oligoporus friesii Falck & O. Falck (1937); Polyporaceae
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Ophioceras friesii (Mont.) Sacc. (1883); Magnaporthaceae
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Opisteria friesii; Nephromataceae
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Oscillatoria friesii C. Agardh (1817); Algae
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Oxystoma friesianum Bél. (1846); Graphidaceae
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Phellinus friesianus (Bres.) Bourdot & Galzin (1928), (= Phellinus punctatus); Hymenochaetaceae
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Parmelia friesii; Parmeliaceae
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Patellaria friesii Wallr. (1831); Patellariaceae
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Peltigera friesiorum Gyeln.; Peltigeraceae
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Perichaena friesiana Rostaf.; Trichiaceae
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Petractis friesii A. Massal. (1854); Stictidaceae
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Peziza friesii Pers. (1822), Weinm. (1836) (= Hymenoscyphus friesii); Helotiaceae
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Phacidium friesii Ces.; Phacidiaceae
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Phialopsis friesii; Gyalectaceae
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Pholiotina friesii (S. Lundell) Enderle (1994), (= Conocybe pygmaeoaffinis); Bolbitiaceae
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Phoma friesii Brunaud; Anamorphe de Leptosphaeria
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Phyllerites friesii (A. Braun) Mesch. (1892); Champignon fossile
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Phyllerium friesii A. Braun; Fungi
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Physalospora friesii Keissl. (1923); Hyponectriaceae
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Pilacre friesii Weinm. (1832); Basidiomycetes
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Pleurotus friesii Lév.; Pleurotaceae
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Pocillaria frieseana Kuntze (1891); Polyporaceae
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Polyblastia friesii Lynge; Verrucariaceae
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Polyporus friesii Klotzsch (1833), (= Trichaptum biforme); Polyporaceae
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Polyporus friesii Bres. (1905), (= Inonotus dryophilus); Hymenochaetaceae
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Polystictus friesii (Klotzsch) Cooke (1886), (= Trichaptum biforme); Polyporaceae
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Poria friesiana Bres. (1908), (= Phellinus punctatus); Hymenochaetaceae
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Porina friesii (P. & H. Crouan) Zahlbr. (1922); Pertusariaceae
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Porostereum friesii (Lév.) Hjortstam & Ryvarden (1990); Phanerochaetaceae
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Porotheleum friesii Mont. (1836); Fr. (1874); Schizophyllaceae
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Psathyrella friesii Kits van Wav. (1977); Psathyrellaceae
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Pseudobaeospora frieslandica Bas ex Bas (1998); Tricholomataceae
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Psora friesii (Ach.) Hellb. (1870), (= Hypocenomyce friesii); Lecideaceae
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Pyrenula friesii Trevis. (1860); Pyrenulaceae
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Rhaphidospora friesii Mont. (1849); Magnaporthaceae
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Rosellinia friesii Niessl; Xylariaceae
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Russula friesii Bres. (1929), (= Russula badia); Russulaceae
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Scenidium friesiana (Speg.) Kuntze (1898), (= Trametes villosa); Polyporaceae
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Secoliga friesiana (Hepp) Stizenb. (1863), (= Bacidia friesiana); Bacidiaceae
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Secoliga friesii (A. Massal.) A. Massal. (1856); Gyalectaceae
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Sordaria friesii Niessl; Sordariaceae
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Sphaeria friesii Duby, (= Valsa abietis); Valsaceae
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Stemonitis friesiana de Bary (1862); Stemonitidaceae
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Stereum friesii (Lév.) Sacc. (1888); Stereaceae
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Symplocia friesiana Kütz. (1843); Crocyniaceae
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Taeniolella friesii (Hepp) Hafellner (1998); Anamorphe de Glyphium
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Thelephora friesii Lév. (1854); Grognot (1863); Thelephoraceae
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Thermutis friesii (C. Agardh) Flot. (1850); Lichinaceae
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Trametes friesii (Klotzsch) G. Cunn. (1965), (= Trichaptum biforme); Polyporaceae
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Trematosphaeria friesii Rehm (1899); Melanommataceae
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Tricholoma friesii Bres.; Tricholomataceae
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Tylodon friesii Banker (1902); Valsaceae
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Typhula friesii P. Karst.; Typhulaceae
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Valsa friesii (Duby) Fuckel (1870), Nitschke (1870) (= Valsa abietis); Valsaceae
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Verrucaria friesiaca Erichsen (1930), (= Verrucaria halizoa); Verrucariaceae
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Verrucaria friesii P. Crouan & H. Crouan (1867); Verrucariaceae
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Xylaria friesii Laessøe (1992); Xylariaceae