SMITH, G. F. In search of enhanced material: Kalanchoe ×toelkenii (Crassulaceae subfam. Kalanchooideae), a new South African nothospecies derived from Kalanchoe ×gunniae × K. sexangularis. Phytotaxa, Auckland, New Zealand, v. 619, n. 3, p. 241–249, 2023. DOI: 10.11646/phytotaxa.619.3.4. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.619.3.4. Acesso em: 6 dec. 2025.