Cereus paxtonianus Monv. ex Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 211. 1850 Cereus paxtonianus Monv. ex Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 211. 1850is basionym for Monvillea paxtoniana (Monv. ex Salm-Dyck) Borg, Cacti, ed. 1: 97. 1937Taxon for this nameCereus paxtonianus Monv. ex Salm-Dyck