Echinocactus monvillei Lem., Cact. Aliq. Nov.: 14. 1838 Echinocactus monvillei Lem., Cact. Aliq. Nov.: 14. 1838is basionym for Gymnocalycium monvillei (Lem.) Pfeiff. ex Britton & Rose, Cactaceae 3: 161, f. 169, 170. 1922Taxon for this nameEchinocactus monvillei Lem.