Echinofossulocactus holopterus (Miq. ex Salm-Dyck) Lawr. in Gard. Mag. (London) 17: 318. 1841 Echinofossulocactus holopterus (Miq. ex Salm-Dyck) Lawr. in Gard. Mag. (London) 17: 318. 1841is new combination for Echinocactus holopterus Miq. ex Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 27. 1850Taxon for this nameEchinofossulocactus holopterus (Miq. ex Salm-Dyck) Lawr.