Aporosa lunata (Miq.) Kurz, J. As. Soc. Bengal 42, II (1873)
Latin for 'sickle-moon-shaped'.

Synonyms
Antidesma lunatum Miq., Bridelia rugosa Miq.

Description
Sub-canopy tree up to 27 m tall and 35 cm dbh. Stipules ca. 13 mm long, curved. Leaves alternate, simple, penni-veined, large, hairy below, usually with cordate base. Flowers ca. 0.3 mm in diameter, yellow, placed in racemes. Fruits ca. 14 mm long, red-purplish, dehiscent capsules, seeds with aril.

Ecology
In undisturbed mixed dipterocarp forests up to 1000 m altitude. Mostly on alluvial places, but also on hillsides and ridges. On sandy to clay soils. In secondary forests usually present as a pre-disturbance remnant tree.

Distribution
Thailand, Peninsular Malaysia, Sumatra, Java, Borneo (Sarawak, Sabah, West-, Central-, South- and East-Kalimantan).

Local names in Borneo
Bambangan, Banigara, Basaiabok, Kapul burung, Kayu masam.