Mammillaria tetracentra Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 112. 1850 Mammillaria tetracentra Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 112. 1850is basionym for Cactus tetracentrus (Salm-Dyck) Kuntze, Revis. Gen. Pl. 1: 261. 1891Taxon for this nameMammillaria tetracentra Salm-Dyck