Basionym: Agaricus titubans Bull., Herbier de la France 9: t. 425:1 (1789) [MB#247469] Obligate synonyms: - Bolbitius vitellinus var. titubans (Bull.) M.M. Moser ex Bon & Courtec., Documents Mycologiques 18 (69): 37 (1987) [MB#132865] - Prunulus titubans (Bull.) Gray, A natural arrangement of British plants 1: 632 (1821) [MB#486526] - Pluteolus titubans (Bull.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 105 (1886) [MB#493098] - Bolbitius vitellinus subsp. titubans (Bull.) Konrad & Maubl., Icones Selectae Fungorum Fasc. 4: pl. 171: 2, t. 171:2 (1928) [MB#499378] - Pluteolus titubans var. titubans (Bull.) Quél.: 83 (1888) [MB#569774] Taxonomic synonyms: - Agaricus vitellinus Pers., Synopsis methodica fungorum: 402 (1801) [MB#165280] - Bolbitius vitellinus (Pers.) Fr., Epicrisis Systematis Mycologici: 254 (1838) [MB#153925] - Cortinarius vitellinus (Fr.) Bigeard & H. Guill., La Flore des Champignons supérieurs de France 1: 255 (1909) [MB#114676] - Pluteolus vitellinus (Pers.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 104 (1886) [MB#493100] - Bolbitius titubans var. vitellinus (Pers.) Courtec., Documents Mycologiques 34 (135-136): 49 (2008) [MB#518178] - Agaricus flavidus Bolton, An History of Fungusses, Growing about Halifax App.: 149, t. 149 (1791) [MB#461837] - Agaricus boltonii Pers., Synopsis methodica fungorum: 414 (1801) [MB#207850] - Bolbitius boltonii (Pers.) Fr., Epicrisis Systematis Mycologici: 254 (1838) [MB#250216] - Prunulus boltonii (Pers.) Gray, A natural arrangement of British plants 1: 632 (1821) [MB#486525] - Bolbitius flavidus (Bolton) Massee, British Fungus-Flora 2: 204 (1893) [MB#456922] - Pluteolus vitellinus var. boltonii (Pers.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 104 (1886) [MB#802767] - Agaricus boltonii Copel., Annales Mycologici 3 (1): 27 (1905) [MB#207645]