Morales, J. Francisco, and Mary E. Endress. “A Synopsis of Macropharynx (Apocynaceae) in Colombia, With Comments on Floral Characters, and a New Combination”. Phytotaxa 677, no. 2 (December 16, 2024): 173–180. Accessed December 6, 2025. https://phytotaxa.mapress.com/pt/article/view/phytotaxa.677.2.6.