Cactus proteiformis Placement status: unresolved name – to be further revisedCactus proteiformis Desf., Tabl. École Bot., ed. 2: 192. 1815 sec. Britton & Rose 192011. Britton, N. L. & Rose, J.N. 1920: Cactaceae 2=Cereus proteiformis (Salm-Dyck) Steud., Nomencl. Bot., ed. 2, 1: 335. 1840 syn. sec. Britton & Rose 192022. Britton, N. L. & Rose, J.N. 1920: Cactaceae 2Content