Escobaria sect. Acharagma N.P.Taylor in Kakteen And. Sukk. 34: 185. 1983
Escobaria sect. Acharagma in Kakteen And. Sukk. 34: 185. 1983
is basionym for Acharagma, Guía Identific. Cact. Amenazadas México: Ac/Ag. 1997 ["1998"]
Escobaria sect. Acharagma in Kakteen And. Sukk. 34: 185. 1983