Gomphia jabotapita Sw. Ochnaceae. Button Tree.
Tropical America. Piso says the carpels are astringent and are not only eaten raw, but that an oil is expressed from them, which is used in salads.
Gomphia parviflora DC. Button Tree.
Brazil. The oil expressed from the fruit is used for salads.
Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.