Disocactus ×mallisonii (Otto & A.Dietr.) Barthlott in Bradleya 9: 88. 1991 Disocactus ×mallisonii (Otto & A.Dietr.) Barthlott in Bradleya 9: 88. 1991is new combination for Cereus mallisonii Otto & A.Dietr. in Verh. Ver. Beföd. Gartenb. 12: 134. 1837Taxon for this nameDisocactus ×mallisonii (Otto & A.Dietr.) Barthlott