Smith GF. The unranked infrageneric names validly published in Kalanchoe (Crassulaceae subfam. Kalanchooideae) by Alwin Berger in 1930 revisited, with publication of five names at the rank of section and one at the rank of subgenus. Phytotaxa [Internet]. 2024 Jan. 31 [cited 2025 Apr. 12];635(4):276-8. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.635.4.2