Mammillaria odieriana var. rigidior Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 98. 1850 Mammillaria odieriana var. rigidior Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 98. 1850Taxon for this nameMammillaria odieriana var. rigidior Salm-Dyck