1.
Smith GF. In search of enhanced material: Kalanchoe ×toelkenii (Crassulaceae subfam. Kalanchooideae), a new South African nothospecies derived from Kalanchoe ×gunniae × K. sexangularis. Phytotaxa [Internet]. 2023 Oct. 10 [cited 2025 Dec. 6];619(3):241-9. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.619.3.4