Can anyone tell me what the small fruits on the plate shown in this picutre are? This was taken in May in a beach town in Pernambuco. They are about 5 cm in diamater, they had a yellow-brown skin and were on a branch in a fairly tight cluster. One would squeeze them to free the white pulp from the skin. The pulp had somewhat sour taste and a texture somewhat like litchi. The pulp formed a thin layer over a large pit.
At the time, someone told me it was pitanga, but I think that is different. As best I can tell, it is maybe similar to imbu/umbu, but not the same.