Remarks: The name Cactus cruciformis has been recommended for conservation against 4 earlier names: Cereus squamulosus Salm-Dyck ex DC. 1828, Cereus tenuispinus Haw. 1827, Cereus myosurus Salm-Dyck ex DC. 1828, and Cereus tenuis DC. 1828 (see Taxon 45: 678-679. 1996).