Sloanea megaphylla

References

1. [1]A Century of Trees of Panama. — Pittier H. Mell C.D. · http://www.biodiversitylibrary.org ↩︎A work that was very difficult to get published according to the correspondence contained at the start!. A treatment of 100 different species with descriptions and details of uses. It can be downloaded from the Internet.
2. [2]Flora of Costa Rica — Standley P.C. · Field Museum of Natural History; Chicago · 1938 · http://www.archive.org/ ↩︎Rather dated, but an excellent treatment of the area. Available for download from the internet.