Lehnert, MARCUS. “Three New Species of Scaly Tree Ferns (Cyathea-Cyatheaceae) from the Northern Andes”. Phytotaxa 1, no. 1 (October 20, 2009): 43–56. Accessed January 28, 2025. https://phytotaxa.mapress.com/pt/article/view/phytotaxa.1.1.5.