Astrophytum myriostigma Lem., Cact. Gen. Sp. Nov.: 4. 1839 Astrophytum myriostigma Lem., Cact. Gen. Sp. Nov.: 4. 1839is basionym for Echinocactus myriostigma (Lem.) Salm-Dyck, Cact. Hort. Dyck.: 22. 1841Taxon for this nameAstrophytum myriostigma Lem., Cact. Gen. Sp. Nov.: 4. 1839