Moronobea grandiflora.

Botanical name: 

Moronobea grandiflora Choizy. Guttiferae.

A tall tree of Brazil. Arruda says the fruit is nearly of the size of an orange but is oval and contains 23 stones covered with a white pulp of a pleasant taste, being sweet and somewhat acid. It is called bacuri.

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