Basionym: Agaricus fulvus Bull., Herbier de la France 12: t. 555:2 (1792) [MB#231862] Obligate synonym: Gyrophila fulva (Fr.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 11 (1886) [MB#494044] Taxonomic synonyms: - Agaricus nictitans Fr., Systema Mycologicum 1: 38 (1821) [MB#448757] - Tricholoma nictitans (Fr.) Gillet, Les Hyménomycètes ou Description de tous les Champignons qui Croissent en France 1: 93 (1874) [MB#238438] - Gyrophila nictitans (Fr.) Quél., Comptes Rendus de l´Association Française pour l´Avancement des Sciences 22 (2): 485 (1894) [MB#502503] - Gyrophila acerba var. nictitans (Fr.) Quél., Comptes Rendus de l´Association Française pour l´Avancement des Sciences 15: 485 (1887) [MB#507777] - Clitocybe marginata Peck, Bull. Torrey Bot. Club: 558 (1902) [MB#160593] - Callistosporium marginatum (Peck) H.E. Bigelow, Rhodora 78: 123 (1976) [MB#310066] - Monodelphus marginatus (Peck) Murrill, Mycologia 7 (5): 282 (1915) [MB#529682] - Agaricus transmutans Peck, Annual Report on the New York State Museum of Natural History 29: 38 (1878) [MB#371985] - Melanoleuca transmutans (Peck) Murrill, North American Flora 10 (1): 23 (1914) [MB#102389] - Tricholoma transmutans (Peck) Sacc., Sylloge Fungorum 5: 91 (1887) [MB#223336] - Agaricus incertus Schaeff., Fungorum qui in Bavaria et Palatinatu circa Ratisbonam nascuntur Icones 4: 28, t. 62 (1774) [MB#490245] - Agaricus flavobrunneus Fr., Observationes mycologicae 2: 119 (1818) [MB#457132] - Agaricus impuber Batsch, Elenchus fungorum: 85 (1783) [MB#490243] - Agaricus proteus Vent., Histoire des champignons de la France, 2 (2) pl. 541-676: 650, t. 431:2-3;544:1 (1812) [MB#497107] - Monadelphus marginatus (Peck) Murrill (1915) [MB#502993]