Mammillaria rhodantha f. ruficeps (Lem.) Voss, Vilm. Blumengärtn., ed. 3, 1: 369. 1894 Mammillaria rhodantha f. ruficeps (Lem.) Voss, Vilm. Blumengärtn., ed. 3, 1: 369. 1894is new combination for Mammillaria ruficeps Lem., Cact. Gen. Sp. Nov.: 37. 1839Taxon for this nameMammillaria rhodantha f. ruficeps (Lem.) Voss