Elaeocarpus kostermansii Wiebel, Candollea 30 (1975)

Named after A.J.G.H. Kostermans [1907-?], a Dutch botanist at Bogor Botanical Gardens, Indonesia.

Mid-canopy tree up to 31 m tall and 75 cm dbh. Stipules dropped early. Leaves alternate, simple, penni-veined, glabrous, very short petioled, conspicuously obovate. Flowers ca. 10 mm in diameter, white-yellow, fimbriate petal margins, placed in racemes. Fruits ca. 24 mm long, green, fleshy drupe.

In undisturbed mixed dipterocarp forests up to 700 m altitude. Common along rivers, hillsides and ridges on sandy soils, but also limestone. In secondary forests usually present as a pre-disturbance remnant tree.

Borneo (Sarawak, Sabah, Central- and East-Kalimantan).