Synonymy:
Drosophila atricastanea Murrill, Mycologia 10(2): 66 (1918)
Psathyrella atricastanea (Murrill) A.H. Sm., Mem. N. Y. bot. Gdn 24: 281 (1972)

Position in classification:
Psathyrella, Psathyrellaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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