References

For Chthamalia

Alvarado-Cárdenas, L.O., M.G. Chávez-Hernández, and C.G. Velazco-Macías. 2021. Ajustes taxonómicos en Apocynaceae Mexicanas. Phytoneuron 2021-47: 1–22. Published 13 September 2021. ISSN 2153 733X Google Scholar

Endress, M.E., U. Meve, D.J. Middleton, and S. Liede-Schumann. 2018. Apocynaceae. In Kadereit, J., & V. Bittrich. 2018. The families and genera of flowering plants. XV. Flowering plants. Eudicots. Apiales, Gentianales (except Rubiaceae). Springer, Cham. Google Scholar

Fishbein, M., and A. McDonnell. 2023. Matelea. In Flora of North America Editorial Committee. 2023c. Flora of North America north of Mexico. Volume 14, Magnoliophyta: Gentianaceae to Hydroleaceae. Oxford Univ. Press, New York, NY. 505 pp. Google Scholar

Morillo, G. 2023. Aportes al conocimiento de las Gonolobinae (Apocynaceae, Asclepiadoideae) Parte V. Chthamalia, Meveampelos gen. nov., Phaeostemma, Polystemma, Ptycanthera. Mem. Fund. La Salle Cienc. Nat. 81(191): 37-90. Google Scholar

Woodson, R.E., Jr. 1941. The North American Asclepiadaceae. I. Perspective of the genera. Ann. Missouri Bot. Garden 28: 193-244. Google Scholar