Cactus gracilis (Mill.) Weston in Bot. Univ. 1: 33. 1770 Cactus gracilis (Mill.) Weston in Bot. Univ. 1: 33. 1770is new combination for Cereus gracilis Mill., Gard. Dict., ed. 8: Cereus no. 8. 1768Taxon for this nameCactus gracilis (Mill.) Weston in Bot. Univ. 1: 33. 1770