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Smith, G. F.; Shtein, R.; Klein, D.-P. 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, and Reproductive Biology of the Species. Phytotaxa 2025, 718, 265-282.