Alfaroa williamsii Ant.Molina Terrestrial trees. Distribution in PILA 700–2100 m, low elevation mixed forest, mixed forest in transition to low elevation forest, mixed forest in transition to cloud forest, cloud forest, low elevation oak forest. Global distribution: Nicaragua to Panama. Records: A. Fernández 777 (CR, INB, MO), A.K. Monro 4991 (INB, MO), A.K. Monro 6200 (PMA), A. Rodríguez 10934 (BM, INB, PMA). ψ Oreomunnea mexicana (Standl.) J.-F.Leroy Gaulín (CR). Terrestrial trees. Distribution in PILA 500–1700 m, low elevation mixed forest, mixed forest in transition to low elevation forest, mixed forest in transition to cloud forest. Global distribution: Mexico, Guatemala, Nicaragua to Panama. Records: A. Rodríguez 11327 (BM, INB, PMA), S. Bridgewater 4194 (BM, INB, PMA). Regional conservation status: Near Threatened (NT).

Published as part of MONRO, A. K., SANTAMARÍA-AGUILAR, D., GONZÁLEZ, F., CHACÓN, O., SOLANO, D., RODRÍGUEZ, A., ZAMORA, N., FEDELE, E. & CORREA, M., 2017, A first checklist to the vascular plants of La Amistad International Park (PILA), Costa Rica-Panama, pp. 448-450 in Phytotaxa 322 (1) on pages 448-450, DOI: 10.11646/phytotaxa.322.1.1, http://zenodo.org/record/13698397