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