Basionym: Agaricus panaeolus Fr., Epicrisis Systematis Mycologici: 49 (1838) [MB#457354] Obligate synonyms: - Tricholoma panaeolum (Fr.) Quél., Mémoires de la Société d'Émulation de Montbéliard ser. 2, 5: 82 (1872) [MB#243507] - Lepista panaeolus (Fr.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 481 (1879) [MB#355596] - Rhodopaxillus panaeolus (Fr.) Maire, Annales Mycologici 11 (4): 338 (1913) [MB#432034] - Gyrophila panaeola (Fr.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 17 (1886) [MB#492450] - Tricholoma panaeolus (Fr.) Quél. (1872) [MB#542124] - Gyrophila panaeolus (Fr.) Quél. (1886) [MB#542133] - Gyrophila panaeolus var. panaeolus (?) [MB#542135] - Lepista panaeola var. panaeola (?) [MB#540943] - Gyrophila panaeola var. panaeola (?) [MB#536030] - Lepista panaeolus var. panaeolus (?) [MB#417243] Taxonomic synonyms: - Agaricus panaeolus var. calceolus Fr., Epicrisis Systematis Mycologici: 49 (1838) [MB#517819] - Tricholoma panaeolum subsp. calceolus (Fr.) Sacc., Sylloge Fungorum 5: 132 (1887) [MB#139334] - Tricholoma panaeolum var. calceolus (Fr.) Sacc., Sylloge Fungorum 5: 132 (1887) [MB#457350] - Tricholoma panaeolum var. calceolum (Fr.) Sacc., Sylloge Fungorum 5: 132 (1887) [MB#566140] - Gyrophila panaeolus var. calceola (Fr.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 17 (1886) [MB#542134]