Uvaria sorzogonensis

References

1. [1]Plant Resources of Southeast Asia — http://proseanet.org/ ↩︎Lots of information on the uses of the plants of SE Asia.
2. [2]An Enumeration of Philippine Flowering Plants — Merrill E.D. · Bureau of Science, Manila. · 1925 · http://www.biodiversitylibrary.org ↩︎Mainly a list of plant names, plus some synonyms, giving details of where the name was published. Also gives a note on the range of the plant, its habitat and local names. Unfortunately, it does not even give a brief description of the plant.
3. [3]Minor Products of Philippine Forests — Brown. W. H. · Bureau of Forestry, Manilla. · 1920 ↩︎A useful guide to some of the plants of the area, though terse on details. The book is out of copyright and can be legally downloaded from the Internet.