[1]
Smith, G.F. 2024. Expanding and subdividing the southern and south-tropical African Kalanchoe [subg. Kalanchoe] sect. Raveta (Crassulaceae subfam. Kalanchooideae): description of K. [sect. Raveta] ser. Raveta, K. [sect. Raveta] ser. Longiflorae, and K. [sect. Raveta] ser. Rotundifoliae. Phytotaxa. 655, 1 (Jun. 2024), 1–20. DOI:https://doi.org/10.11646/phytotaxa.655.1.1.