Smith, G.F. & Shtein, R. (2021)

Clarifying the typification of the names Kalanchoe fedtschenkoi and K. waldheimii (Crassulaceae subfam. Kalanchooideae), two leaf-succulent shrubs indigenous to Madagascar

. Phytotaxa 509 (1): 131–134. https://doi.org/10.11646/phytotaxa.509.1.9