Basionym Name:Agaricus angustus Pers., Syn. meth. fung. (Göttingen) 2: 345 (1801)
Homotypic synonyms:Clitopilus angustus (Pers.) P. Kumm., Führ. Pilzk. (Zerbst): 97 (1871)Rhodophyllus angustus (Pers.) Quél., Enchir. fung. (Paris): 62 (1886)