Obligate Synonyme: Cortinarius calochrous (Pers.) Gray (1821) [MB195811] Phlegmacium calochroum (Pers.) Wünsche (1877) [MB356901] Agaricus calochrous Pers. (1801) [MB231030] Cortinarius callochrous (Pers.) Gray, A natural arrangement of British plants 1: 629 (1821) [MB499347] Myxacium calochroum (Pers.) P. Kumm. (1871) [MB507922] Phlegmacium callochroum (Pers.) Wünsche, Die Pilze. Eine Anleitung zur Kenntniss derselben: 87 (1877) [MB534573] Myxacium callochroum (Pers.) P. Kumm., Der Führer in die Pilzkunde: 92 (1871) [MB534590] Agaricus callochrous var. callochrous (?) [MB534571] Phlegmacium callochroum f. callochroum (?) [MB534591] Phlegmacium callochroum var. callochroum (?) [MB534593] Phlegmacium calochroum var. calochroum (?) [MB427872] Phlegmacium calochroum f. calochroum (?) [MB429741] Cortinarius calochrous (Pers.) Gray (1821) [MB461246] Cortinaria callochroa (Pers.) Gray (1821) [MB582664] Gomphos callochrous (Pers.) Kuntze, Revisio generum plantarum 2: 853 (1891) [MB646659]