Cupania americana.
Botanical name:
Cupania americana Linn. Sapindaceae.
Mexico. The sweet, chestnut-like seeds are used in the West Indies as a food. The seeds have the flavor of chestnut or sweet acorns and are used on the banks of the Orinoco to make a fermented liquor.
Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.