Mammillaria crassispina var. gracilior Salm-Dyck, Cact. Hort. Dyck., ed. 1844: 8. 1845 Mammillaria crassispina var. gracilior Salm-Dyck, Cact. Hort. Dyck., ed. 1844: 8. 1845Taxon for this nameMammillaria crassispina var. gracilior Salm-Dyck
