Kalanchoe montana Compton was regarded as a subspecies of Kalanchoe luciae Raym.-Hamet, as K. luciae subsp. montana (Compton) Toelken, in the Flora of Southern Africa treatment of the family Crassulaceae. We here reinstate K. montana Compton at species rank. Descriptions are provided for K. luciae and K. montana, and characters distinguishing them noted and illustrated. Geographical distribution maps are provided for both species in southern Africa. A lectotype is designated for K. montana.