SMITH, G. F. The nomenclature associated with the name Kalanchoe arborescens (Crassulaceae subfam. Cotyledonoideae), the type of which is the type of K. subg. Calophygia. Phytotaxa, Auckland, New Zealand, v. 672, n. 3, p. 285–292, 2024. DOI: 10.11646/phytotaxa.672.3.6. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.672.3.6. Acesso em: 6 dec. 2025.