Coryphantha salm-dyckiana (Scheer ex Salm-Dyck) Britton & Rose, Cactaceae 4: 39. 1923 Coryphantha salm-dyckiana (Scheer ex Salm-Dyck) Britton & Rose, Cactaceae 4: 39. 1923is new combination for Mammillaria salm-dyckiana Scheer in Salm-Dyck, Cact. Hort. Dyck., 1849: 134. 1850Taxon for this nameCoryphantha salm-dyckiana (Scheer ex Salm-Dyck) Britton & Rose