Bouea burmanica.
Botanical name:
Bouea burmanica Griff. Anacardiaceae.
Burma. The fruit is eaten, that of one variety being intensely sour, of another insipidly sweet.
Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.
A herbal distance course
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.