Hovenia dulcis.

Botanical name: 

Hovenia dulcis Thunb. Rhamneae. Raisin Tree.

Himalayan regions, China and Japan. The tree is cultivated in India for its fruit, which has a pleasant flavor like that of a Bergamot pear. The round fruits, about the size of a pea, are seated at the end of the recurved, fleshy peduncle, which is cylindrical, about an inch long, and is the part eaten.

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.