The taxonomic status of Crassula multicava Lem. subsp. floribunda Friedrich ex Toelken (C. sect. Anacampseroideae Haw.) is reassessed and raised to that of species, as C. floribunda (Friedrich ex Toelken) N.R.Crouch, Gideon F.Sm. & D.Styles. Distribution maps and descriptions for the allopatric subtropical species C. multicava and C. floribunda are provided, and vegetative and reproductive characters that distinguish them noted and illustrated. The name C. quadrifida Baker, a synonym of C. multicava, does not have a holotype and a previous lectotypification must stand. The name C. quadrifida is epitypified on a specimen previously thought to be its holotype.