Echinocereus scheeri (Salm-Dyck) Scheer, Bot. Voy. Herald: 291. 1856 Echinocereus scheeri (Salm-Dyck) Scheer, Bot. Voy. Herald: 291. 1856is new combination for Cereus scheeri Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 190. 1850Taxon for this nameEchinocereus scheeri (Salm-Dyck) Scheer, Bot. Voy. Herald: 291. 1856