Basionym: Agaricus lignatilis Pers., Synopsis methodica fungorum: 368 (1801) [MB#114678] Obligate synonyms: - Pleurocybella lignatilis (Pers.) Singer, Mycologia 39 (1): 82 (1947) [MB#445570] - Pleurotus lignatilis (Pers.) P. Kumm., Der Führer in die Pilzkunde: 104 (1871) [MB#166552] - Nothopanus lignatilis (Pers.) Bon, Documents Mycologiques 17 (65): 53 (1986) [MB#129548] - Clitocybe lignatilis (Pers.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 86 (1879) [MB#455828] - Omphalia lignatilis (Pers.) Quél., Comptes Rendus de l´Association Française pour l´Avancement des Sciences 30 (2): 494 (1902) [MB#355967] - Dendrosarcus lignatilis (Fr.) Kuntze, Revisio generum plantarum 3 (3): 464 (1898) [MB#524986] Taxonomic synonyms: - Agaricus abscondens Peck, Annual Report on the New York State Museum of Natural History 31: 32 (1879) [MB#467974] - Pleurotus abscondens (Peck) Sacc., Sylloge Fungorum 5: 346 (1887) [MB#200737] - Micromphale abscondens (Peck) Murrill, North American Flora 9 (5): 307 (1916) [MB#502939] - Dendrosarcus abscondens (Peck) Kuntze: 463 (1898) [MB#524889] - Agaricus markii Trattori, Fung. austr.: 140 (1805) [MB#249136]