Alves-Silva, Jarina Waléria, and Thales Silva Coutinho. “Allamanda Alagoana (Apocynaceae), A Remarkable New Species from Northeastern Brazil”. Phytotaxa 613, no. 2 (September 13, 2023): 187–193. Accessed December 6, 2025. https://phytotaxa.mapress.com/pt/article/view/phytotaxa.613.2.8.