Synonymy:
Agaricus purpureofuscus Peck, Ann. Rep. N.Y. St. Mus. nat. Hist. 38: 85 (1885)
Prunulus purpureofuscus (Peck) Murrill, N. Amer. Fl. (New York) 9(5): 333 (1916)

Agaricus atromarginatus var. pseudoianthinus Fr. [as 'pseudojanthinus'], Monogr. Hymenomyc. Suec. (Upsaliae) 1: 199 (1857)

Position in classification:
Mycena, Mycenaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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