Cereus flagelliformis var. mallisonii Cereus flagelliformis var. mallisonii Walp., Repert. Bot. Syst. 2: 278. 1843 sec. WFO 201911. WFO 2019=Cereus crimsonii Pritz., Icones: 246. 1855 syn. sec. Britton & Rose 192022. Britton, N. L. & Rose, J.N. 1920: Cactaceae 2Content