Dimorphandra mora.

Botanical name: 

Dimorphandra mora Benth. & Hook. f. Leguminosae.

A gigantic timber-tree of British Guiana. The seeds, says Brown, are used by the natives as food, being boiled, grated, and then mixed with cassava meal, giving it a brown color but a pleasant and sweetish taste. The seeds of another species are likewise used.

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