Flower and fruit of Dillenia philippinensis

 

Flower and fruit of Dillenia philippinensis
Dilleniaceae
Dilleniales

A tree that originates from the Philippines. Flowers have two types of stamens - shorter yellow outer stamens and longer purple outer stamens. Somehow it's mind-boggling that evolution determined that having many stamens work and continues on with in?

Reference:
https://www.nparks.gov.sg/florafaunaweb/flora/2/8/2845