Cactus ovatus Gillies ex Loudon, Hort. Brit.: 195. 1830 Cactus ovatus Gillies ex Loudon, Hort. Brit.: 195. 1830is basionym for Cereus ovatus (Gillies ex Loudon) G.Don, Hort. Brit.: 195. 1830Taxon for this nameCactus ovatus Gillies ex Loudon