Cereus subsect. Peniocereus A.Berger in Rep. (Annual) Missouri Bot. Gard. 16: 77. 1905 Cereus subsect. Peniocereus A.Berger in Rep. (Annual) Missouri Bot. Gard. 16: 77. 1905is basionym for Peniocereus (A.Berger) Britton & Rose in Contr. U.S. Natl. Herb. 12: 428. 1909Taxon for this nameCereus subsect. Peniocereus A.Berger