Wikipedia
Chrysobalanaceae is a family of flowering plants, consisting of trees and shrubs in 18 genera and about 533 species of pantropical distribution with a centre of diversity in the Amazon. Some of the species contain silica in their bodies for rigidity and so the mesophyll often has sclerenchymatous idioblasts. The widespread species Chrysobalanus icaco produces a plum-like fruit and the plant is commonly known as the coco plum.
The family was traditionally placed as a subfamily in the rose family ( Rosaceae) or as a family in the rose order and exceptionally as an order in Myrtiflorae by Dahlgren In the phenotypic cladistic analysis of Nandi et al., it branched with Elaeagnaceaeas sister group of Polygalaceae, in their molecular cladistic analysis it was in Malpighiales and also in their combined analysis.