Hello all, I was recently in my uncle's house in Naranjito, Puerto Rico and he has a shrub-like tree some 6 feet high and with abundant ramifications, the tree produced this round berry which is green when unripe and turns purple when ripe, it has a hairy skin and is about half an inch across. I do not have pictures of the tree unfortunately but here are some of the fruit.
Mabolo (Diospyros blancoi) Velvet Apple or similar sp? http://lifeforherbs.blogspot.com/2010/03/mabolo-diospyros-blancoi-velvet-apple.html