Aglaia korthalsii Miq., Ann. Mus. Bot. Lugd. Bat. 4 (1868)
Named after P.W. Korthals [1807-1892], a Dutch botanist.

Synonyms
Aglaia cauliflora Koord., Aglaia celebica Koord., Aglaia confertiflora Merr., Aglaia dysoxylifolia Koord., Aglaia dysoxylonoides Koord., Aglaia longipetiolulata Baker.f., Hearnia sarawakana C.DC. in DC.

Description
Mid-canopy tree up to 34 m tall and 74 cm dbh. Stipules absent. Leaves alternate, compound, leaflets penni-veined, sparsely hairy below. Flowers ca. 1 mm diameter, yellow, placed in large panicles. Fruits ca. 11 mm diameter, orange-red, fleshy capsules. Seeds with translucent, yellow-orange aril.

Ecology
In undisturbed mixed dipterocarp to sub-montane forests up to 1400 m altitude. Usually on alluvial sites, but also common on hillsides and ridges. On sandy to clay soils, but also common on or near limestone. In secondary forests usually present as a pre-disturbance remnant.

Uses
The wood is locally used for house poles. The fruits are edible.

Distribution
From India, Buthan, Indo-China, Burma and Thailand to the Moluccas. In Borneo collected in Sarawak, Sabah, South- and East-Kalimantan.

Local names in Borneo
Bilajang merah, Bunjau, Langsat, Langsat munyit, Lantupak, Mula, Mulak, Pulu, Segara.