Heliocereus macdougallii (Alexander) Doweld in Sukkulenty 4(1-2): 42. 2002 ["2001"] Heliocereus macdougallii (Alexander) Doweld in Sukkulenty 4(1-2): 42. 2002 ["2001"]is new combination for Lobeira macdougallii Alexander in Cact. Succ. J. (Los Angeles) 16: 178. 1944Taxon for this nameHeliocereus macdougallii (Alexander) Doweld