Smith, G. F. “A Review and Analysis of the Nomenclature and Taxonomy of the Genus-Rank Synonyms of Kalanchoe (Crassulaceae Subfam. Kalanchooideae) Published Between 1763 and 1956”. Phytotaxa, vol. 659, no. 3, July 2024, pp. 236-54, doi:10.11646/phytotaxa.659.3.2.