Lemaireocereus laetus (Kunth) Britton & Rose in J. New York Bot. Gard. 20: 157. 1919
Lemaireocereus laetus in J. New York Bot. Gard. 20: 157. 1919
is new combination for Cactus laetus, Nov. Gen. Sp. (quarto ed.) 6: 68. 1823
Lemaireocereus laetus in J. New York Bot. Gard. 20: 157. 1919