The nomenclature and taxonomy of the Malagasy Kalanchoe macrochlamys (Crassulaceae [subfam. Cotyledonoideae] tr. Kalanchoeae), and inclusion of K. maromokotrensis in its synonymy, with notes on the natural geographical distribution range, ecology, an

The nomenclature and taxonomy of the Malagasy Kalanchoe macrochlamys (Crassulaceae [subfam. Cotyledonoideae] tr. Kalanchoeae), one of the kalanchoes described by the French botanist Henri Perrier de la Bâthie in 1928, are discussed and clarified. The species has remained little-known for nearly 100 years, likely because it had not been illustrated until 2006, and then as K. maromokotrensis. The typification of the name K. macrochlamys is corrected and it is shown that K. maromokotrensis belongs in the synonymy of K. macrochlamys. A map and discussion of the natural geographical distribution range of K. macrochlamys are provided, along with an amplified description of the species, and illustrations of it from several localities as well as its multiple reproductive strategies. Kalanchoe macrochlamys is also compared to K. cymbifolia.