Aporosa falcifera Hook.f., Fl. Brit. India 5 (1887)
Latin for 'sickle-shaped', referring to the stipules.

Synonyms
Aporusa acuminatissima Merr., Aporusa hosei Merr., Aporusa merrilliana Govaerts & Radcl.

Description
Mid-canopy tree up to 33 m tall and 47 cm dbh. Stipules ca. 15 mm long, curved. Leaves alternate, simple, penni-veined, glabrous. Flowers ca. 1 mm in diameter, yellowish, placed in compacted racemes. Fruits ca. 12 mm long, red, dehiscent capsule, seeds with aril.

Ecology
In undisturbed mixed dipterocarp and sub-montane forests up to 1400 m altitude. Mostly on ridges. Also found on limestone. In secondary forests usually present as a pre-disturbance remnant tree.

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

Local names in Borneo
Biling, Damak-damak, Kayu dusun, Tambau, Untapulu.