Synonymy:
Agaricus titubans Bull., Herb. Fr. (Paris) 9: pl. 425, fig. 1 (1789)
Prunulus titubans (Bull.) Gray, Nat. Arr. Brit. Pl. (London) 1: 632 (1821)
Pluteolus titubans (Bull.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 105 (1886)
Bolbitius vitellinus subsp. titubans (Bull.) Konrad & Maubl., Icon. Select. Fung. 2: pl. 171: 2 (1932)
Bolbitius vitellinus var. titubans (Bull.) M.M. Moser ex Bon & Courtec., Docums Mycol. 18(no. 69): 37 (1987)

Agaricus fragilis L., Sp. pl. 2: 1175 (1753)
Amanita fragilis (L.) Lam., Encycl. Méth. Bot. (Paris) 1: 110 (1783)
Bolbitius fragilis (L.) Fr., Epicrisis Systematis Mycologici: 254 (1838) [1836-1838]
Pluteolus fragilis (L.) Quél., Fl. mycol. France (Paris): 83 (1888)
Mycena fragilis (L.) Murrill, Mycologia 4(2): 73 (1912)
Bolbitius vitellinus var. fragilis (L.) J. Favre, Beitr. Kryptfl. Schweiz 10(no. 3): 147 (1948)

Agaricus equestris Bolton, Hist. fung. Halifax (Huddersfield) 2: 65 (1788)

Agaricus flavidus Bolton, Hist. fung. Halifax, App. (Huddersfield) 3: 149 (1792) [1791]
Bolbitius flavidus Massee, Brit. Fung.-Fl. (London) 2: 204 (1893)

Agaricus vitellinus Pers., Syn. meth. fung. (Göttingen) 2: 402 (1801)
Coprinus vitellinus (Pers.) Zaw., Enum. plant. Galic. Bucow. (Breslau): 169, n° 2707 (1835)
Bolbitius vitellinus (Pers.) Fr., Epicrisis Systematis Mycologici: 254 (1838) [1836-1838]
Pluteolus vitellinus (Pers.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 104 (1886)
Cortinarius vitellinus (Pers.) Bigeard & H. Guill., Fl. Champ. Supér. France (Chalon-sur-Saône) 1: 255 (1909)
Bolbitius titubans var. vitellinus (Pers.) Courtec., Docums Mycol. 34(nos 135-136): 49 (2008)

Agaricus boltonii Pers., Syn. meth. fung. (Göttingen) 2: 414 (1801)
Prunulus boltonii (Pers.) Gray, Nat. Arr. Brit. Pl. (London) 1: 632 (1821)
Bolbitius boltonii (Pers.) Fr., Epicrisis Systematis Mycologici: 254 (1838) [1836-1838]
Pluteolus vitellinus var. boltonii (Pers.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 104 (1886)

Agaricus luteolus Lasch, Linnaea 4: 551 (1829)
Bolbitius luteolus Fr., Epicrisis Systematis Mycologici: 254 (1838) [1836-1838]

Pluteolus titubans var. luteolus (Fr.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 105 (1886)

Bolbitius vitellinus var. olivaceus Quél., Bull. Soc. Bot. France 23: 329 (1877) [1876]
Pluteolus vitellinus var. olivaceus (Quél.) Quél., C. r. Assoc. Franç. Avancem. Sci. 18(2): 510 (1890) [1889]
Bolbitius titubans var. olivaceus (Quél.) Arnolds, Persoonia 18(2): 204 (2003)

Bolbitius variicolor G.F. Atk., Stud. Amer. Fungi: 164 (1900)
Mycena variicolor (G.F. Atk.) Murrill, N. Amer. Fl. (New York) 10(3): 191 (1917)
Bolbitius vitellinus var. variicolor (G.F. Atk.) Krieglst., Beitr. Kenntn. Pilze Mitteleur. 7: 62 (1991)

Bolbitius variicolor var. svalbardensis Hauskn., Weholt, Bendiksen & Krisai, in Hausknecht, Weholt, Bendiksen & Greilhuber, Agarica 31: 95 (2011)

Position in classification:
Bolbitius, Bolbitiaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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