Philodendron sulcatum K.Krause

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, Phytotaxa 322 (1), pp. 448-450 : 448-450

Philodendron sulcatum K.Krause

Hemi-epiphytic herbs. Distribution in PILA 0–1400 m, low elevation mixed forest, mixed forest in transition to low elevation forest, mixed forest in transition to cloud forest, dense thicket. Global distribution: Nicaragua to Ecuador. Records: D. Santamaría 6816 (BM, INB, PMA), D. Santamaría 7037 (BM, INB, PMA), D. Santamaría 7043 (BM, INB, PMA).

Philodendron thalassicum Croat & Grayum Hemi-epiphytic herbs. Distribution in PILA 0–2300 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: Costa Rica, Panama. Records: A.K. Monro 5457 (BM, INB, PMA), A.K. Monro 5545 (BM, INB, PMA), E. Alfaro 741 (INB, MO), G. Davidse 28365 (CR), G. Davidse 29201 (MO), J. Bittner 1787 (INB, MO), M. Grayum 10282 (INB, MO), T. Croat 27000A (MO).