HEIDUK, A. Ceropegia cryptobarbata sect. Chamaesiphon (Apocynaceae—Asclepiadoideae), a novel tuberous species from the Drakensberg foothills in South Africa. Phytotaxa, Auckland, New Zealand, v. 613, n. 2, p. 162–170, 2023. DOI: 10.11646/phytotaxa.613.2.5. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.613.2.5. Acesso em: 6 dec. 2025.