Smith GF. Refinements to the infra-sectional classification of Kalanchoe [subg. Bryophyllum] sect. Invasores (Crassulaceae subfam. Cotyledonoideae) at the rank of series: description of K. [subg. Bryophyllum sect. Invasores] ser. Invasores, K. [subg. Bryophyllum sect. Invasores] ser. Fruticosa, and K. [subg. Bryophyllum sect. Invasores] ser. Herbacea. Phytotaxa [Internet]. 2025 May 2 [cited 2025 Dec. 6];698(4):196-208. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.698.4.1