Mammillaria elongata var. subcrocea (DC.) Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 12. 1850 Mammillaria elongata var. subcrocea (DC.) Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 12. 1850is new combination for Mammillaria subcrocea DC. in Mém. Mus. Hist. Nat. 17: 110. 1828Taxon for this nameMammillaria elongata var. subcrocea (DC.) Salm-Dyck