Cereus polyptychus Lem., Cact. Gen. Sp. Nov.: 56. 1839 Cereus polyptychus Lem., Cact. Gen. Sp. Nov.: 56. 1839is basionym for Pilocereus polyptychus (Lem.) Rümpler, Handb. Cacteenk., ed. 2: 680. 1885Taxon for this nameCereus polyptychus Lem., Cact. Gen. Sp. Nov.: 56. 1839