Psathyrella friesii Kits van Wav. (1977); Psathyrellaceae Pseudobaeospora frieslandica Bas ex Bas (1998); Tricholomataceae Psora friesii (Ach.) Hellb. (1870), (= Hypocenomyce friesii); Lecideaceae Pyrenula friesii Trevis. (1860); Pyrenulaceae Rhaphidospora friesii Mont. (1849); Magnaporthaceae Rosellinia friesii Niessl; Xylariaceae Russula friesii Bres. (1929), (= Russula badia); Russulaceae Scenidium friesiana (Speg.) Kuntze (1898), (= Trametes villosa); Polyporaceae Secoliga friesiana (Hepp) Stizenb. (1863), (= Bacidia friesiana); Bacidiaceae Secoliga friesii (A. Massal.) A. Massal. (1856); Gyalectaceae Sordaria friesii Niessl; Sordariaceae Sphaeria friesii Duby, (= Valsa abietis); Valsaceae Stemonitis friesiana de Bary (1862); Stemonitidaceae Stereum friesii (Lév.) Sacc. (1888); Stereaceae Symplocia friesiana Kütz. (1843); Crocyniaceae Taeniolella friesii (Hepp) Hafellner (1998); Anamorphe de Glyphium Thelephora friesii Lév. (1854); Grognot (1863); Thelephoraceae Thermutis friesii (C. Agardh) Flot. (1850); Lichinaceae Trametes friesii (Klotzsch) G. Cunn. (1965), (= Trichaptum biforme); Polyporaceae Trematosphaeria friesii Rehm (1899); Melanommataceae Tricholoma friesii Bres.; Tricholomataceae Tylodon friesii Banker (1902); Valsaceae Typhula friesii P. Karst.; Typhulaceae Valsa friesii (Duby) Fuckel (1870), Nitschke (1870) (= Valsa abietis); Valsaceae Verrucaria friesiaca Erichsen (1930), (= Verrucaria halizoa); Verrucariaceae Verrucaria friesii P. Crouan & H. Crouan (1867); Verrucariaceae Xylaria friesii Laessøe (1992); Xylariaceae Variedatz y formas