Mammillaria gracilis f. pulchella (Salm-Dyck) Schelle, Kakteen: 317. 1926 Mammillaria gracilis f. pulchella (Salm-Dyck) Schelle, Kakteen: 317. 1926is new combination for Mammillaria pulchella Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 10, 94. 1850Taxon for this nameMammillaria gracilis f. pulchella (Salm-Dyck) Schelle