Cereus robinii var. keyensis (Britton & Rose) L.D.Benson
Cereus robinii var. keyensis
is new combination for Cephalocereus keyensis in Contr. U.S. Natl. Herb. 12: 416. 1909
non Cephalocereus robinii var. keyensis in Cact. Succ. J. (Los Angeles) 41: ?. 1969