Eriocereus tetracanthus (Labour.) Riccob. in Boll. Reale Orto Bot. Palermo 8: 244. 1909 Eriocereus tetracanthus (Labour.) Riccob. in Boll. Reale Orto Bot. Palermo 8: 244. 1909is new combination for Cereus tetracanthus Labour. in Rev. Hort. (Paris) 4: 25. 1855Taxon for this nameEriocereus tetracanthus (Labour.) Riccob.