Cereus geometrizans Mart. ex Pfeiff., Enum. Diagn. Cact.: 90. 1837 Cereus geometrizans Mart. ex Pfeiff., Enum. Diagn. Cact.: 90. 1837is basionym for Myrtillocactus geometrizans (Mart. ex Pfeiff.) Console in Boll. Reale Orto Bot. Giardino Colon. Palermo 1: 10. 1897Taxon for this nameCereus geometrizans Mart. ex Pfeiff.