Erythroxylum ulei

References

1. [1]Flora of Peru — Macbride. J.F. · Field Museum of Natural History · 1936 ↩︎An excellent attempt at a Flora of Peru, though it is clear that many of the plants were imperfectly known at that time and so information on them was sketchy. Available for download from the Internet.
2. [2]Useful Plants of the Siona and Secoya Indians of Eastern Ecuador. — Vickers W.T.; Plowman T. · Field Museum of Natural History; USA. · 1984 · http://www.biodiversitylibrary.org · ISBN 0015 - 0746 ↩︎Very terse, but it gives the uses of a large number of species. It can be downloaded from the Internet.