Sclerocactus scheeri (Salm-Dyck) N.P.Taylor in Bradleya 5: 94. 1987 Sclerocactus scheeri (Salm-Dyck) N.P.Taylor in Bradleya 5: 94. 1987is new combination for Echinocactus scheeri Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 155. 1850Taxon for this nameSclerocactus scheeri (Salm-Dyck) N.P.Taylor in Bradleya 5: 94. 1987