What is "kostermanthus"

Kostermanthus is a genus of plant in the family Chrysobalanaceae described as a genus in 1979.

Kostermanthus is native to Southeast Asia ( Peninsular Malaysia, Borneo, Sumatra, Sulawesi, and the Philippines). It is named in honor of André Joseph Guillaume Henri Kostermans (1906-1994), an Indonesian botanist of Dutch ancestry.

1. Kostermanthus heteropetalus - Peninsular Malaysia, Borneo, Sumatra, Sulawesi, Philippines
2. Kostermanthus malayanus - Perak
3. Kostermanthus robustus - Sarawak