The article discusses the rejection of the nomenclature Cereus heteromorphus Monv., which is part of a collection of cacti species found in roches de Huasco, Chile. Topics include the relationship of Cereus heteromorphus Monv. with other columnar cacti Cereus panoploeatus, Cactus coquimbanus and Cereus spinabarbis, and the characteristics of flowers or fruits of columnar cactic.