Synonymy:
Agaricus haedinus Berk. & M.A. Curtis, J. Linn. Soc., Bot. 10(no. 45): 288 (1868) [1869]
Pleurotus haedinus (Berk. & M.A. Curtis) Sacc., Syll. Fung. (Abellini) 5: 369 (1887)
Geopetalum haedinum (Berk. & M.A. Curtis) Murrill, N. Amer. Fl. (New York) 9(5): 301 (1916)

Agaricus candidissimus Berk. & M.A. Curtis, Ann. Mag. nat. Hist., Ser. 3 4: 288 (1859)
Pleurotus candidissimus Sacc., Syll. Fung. (Abellini) 5: 368 (1887)

Geopetalum candidissimum (Sacc.) Murrill, N. Amer. Fl. (New York) 9(5): 298 (1916)
Pleurotellus candidissimus (Sacc.) Konrad & Maubl., Icon. Select. Fung. 6: 360 (1937)
Nothopanus candidissimus (Sacc.) Kühner, Bull. mens. Soc. linn. Lyon 49(Num. Spéc.): 895 (1980)
Cheimonophyllum candidissimum (Sacc.) Pegler, Kew Bull., Addit. Ser. 9: 124 (1983)

Agaricus leucochrius Britzelm., Botan. Centralbl. 54(2): 39 (1893)
Pleurotus leucochrius (Britzelm.) Sacc., Syll. Fung. (Abellini) 11: 27 (1895)
Urospora leucochrius (Britzelm.) Singer, Beih. Botan. Centralbl., Abt. B 56: 145 (1936)
Scytinotopsis leucochria (Britzelm.) Singer, Annls mycol. 41(1/3): 157 (1943)

Position in classification:
Cheimonophyllum, Cyphellaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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