Malacocarpus aciculatus Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 25. 1850 Malacocarpus aciculatus Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 25. 1850Taxon for this nameMalacocarpus aciculatus Salm-Dyck