Aporosa nitida Merr., Pl. Elmer (1929)
Latin for 'shiny'.

Description
Sub-canopy tree up to 23 m tall and 27 cm dbh. Stipules dropped early. Leaves alternate, simple, penni-veined, large, glabrous. Flowers ca. 0.3 mm in diameter, yellow, placed on club-shaped inflorescence. Fruits ca. 20 mm long, yellow-orange, dehiscent capsule, seeds with orange aril.

Ecology
In undisturbed mixed dipterocarp forests up to 800 m altitude. On alluvial sites, but also common on ridges. Mostly on sandy soils, sometimes on limestone. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
Fruits are edible.

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

Local names in Borneo
Bilung, Janggau, Janggau daun besar man, Kayu besi, Mata rusa, Punu-punu, Susu diangas.