Pilocereus palmeri (Rose) F.M.Knuth, Kaktus-ABC: 323. 1936 ["1935"] Pilocereus palmeri (Rose) F.M.Knuth, Kaktus-ABC: 323. 1936 ["1935"]is new combination for Cephalocereus palmeri Rose in Contr. U.S. Natl. Herb. 12: 418. 1909Taxon for this namePilocereus palmeri (Rose) F.M.Knuth