Basionym:
Agaricus dysthales Peck, Rep. (Annual) New York State Mus. Nat. Hist. 32: 28 (1879) [MB#444061]
Obligate synonyms:
- Pouzarella dysthales (Peck) Mazzer, Biblioth. Mycol. 46: 105 (1976) [MB#320952]
- Pouzaromyces dysthales (Peck) P.D. Orton, Mycologist 5 (4): 174 (1991) [MB#359027]
- Rhodophyllus dysthales (Peck) Romagn., Bull. Trimestriel Soc. Mycol. France 53: 328 (1937) [MB#322634]
- Leptonia dysthalis (Peck) Konrad & Maubl., Les Agaricales: 184 (1953) [MB#492268]
- Nolanea dysthales (Peck) Murrill, N. Amer. Flora (1917) [MB#503087]
Taxonomic synonyms:
- Inocybe bucknallii Massee, Ann. Bot. (Oxford) 18: 473 (1904) [MB#219873]
- Astrosporina bucknallii (Massee) Rea, British Basidiomycetae: A handbook to the larger British fungi: 213 (1922) [MB#259079]