SMITH, G. F. The taxonomy and nomenclature of Kalanchoe ser. Rotundifoliae, a cluster of small-growing to medium-sized species with narrowly urceolate flowers here included in K. sect. Kalanchoe (Crassulaceae [subfam. Cotyledonoideae] tr. Kalanchoeae), with the description of a new series, K. ser. Hirtae. Phytotaxa, Auckland, New Zealand, v. 755, n. 2, p. 175–194, 2026. DOI: 10.11646/phytotaxa.755.2.3. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.755.2.3. Acesso em: 16 may. 2026.