Smith, G. F.; Crouch, N. R.; Mckay, A. Cotyledon turlandii (Crassulaceae [subfam. Cotyledonoideae] Tr. Cotyledoneae), a New Cliff-Dwelling Species from the Maputaland-Pondoland Region of Endemism in Eastern South Africa, With Nomenclatural Notes on the Name Cotyledon zuluensis. Phytotaxa 2026, 760, 149-162.