Aglaia forbesii King, J. As. Soc. Beng. 64, 2 (1895)

Synonyms
Aglaia humilis King

Description
Tree up to 35 m, with a dense rounded crown. Bole up to 60 cm in diam. Outer bark often smooth, brown, pale brown, greenish-brown or greyish-brown, with vertical cracks and lenticcls in longitudinal rows, sometimes flaking in irregular scales; inner bark brown, yellowish-brown or reddish-brown; sapwood orange-brown, pale brown, pale yellowish-brown or sometimes reddish-brown; latex white. Twigs usually slender, sometimes stout, densely covered with dark brown, reddish-brown or greyish-brown stellate scales or hairs. Leaves imparipinnate, up to 100 cm long and 60 cm wide, elliptical in outline, petiole up to 35 cm, petiole, rachis and petiolules with indumentum like the twigs. Leaflets 9-15, 8.5-30 by 2-10 cm, suhcoriaceous, green or blackish-green on upper surface, brown or greenish-brown on lower surface when dry, acuminate at apex, rounded or cuneate at the asymmetrical base, upper surface rugulose and pitted, lower surface granular, sometimes rugulose and pitted, with white, pale brown or reddish- brown stellate hairs or scales usually few to numerous on the midrib, few on the lateral veins and scattered on the surface in between, sometimes numerous on the lower surface and deciduous, leaving numerous pits; veins 9-24 on each side of the midrib, midrib and lateral veins often nearly black when dry, the reticulation usually barely visible; petiolules up to 15(-20) mm on lateral leaflets. Inflorescence up to 35 cm long and 25 cm wide; peduncle up to 6 cm, peduncle, rachis, branches and petiolules with numerous to densely covered with white, pale brown or reddish-brown stellate scales or hairs. Flowers up to 2 mm long; pedicels up to 1.5 mm. Calyx densely covered with stellate scales or hairs on the outside. Petals 5 or 6. Staminal tube shorter than the corolla, up to 1.5 mm long, cup-shaped or subglobose, slightly incurved and shallowly 5-lobed at the apical margin with the aperture up to 1.3 mm wide or with a pin-prick apical pore; anthers 5, 1/3 to nearly the length of the tube, obovoid and just protruding through the aperture. Infructescence with c. 20 fruits, up to 35 cm long; peduncle c. 8 cm; peduncle and branches with surface and indumentum like (he (wigs. Fruits up to 4 cm long and 3.8 cm wide, ellipsoid or subglobose, sometimes with a small beak at the apex and sometimes narrowed at the base to a short stipe 3 mm long, sometimes with a longitudinal ridge encircling the fruit; pericarp up to 4 mm thick, soft, fibrous and flexible, white, yellow, orange, grey or greenish-grey, longitudinally wrinkled when dry, densely covered with white or yellowish-grey stellate scales or peltate scales which have a fimbriate margin on the outside, pericarp shiny inside, with white latex. Locules 2, each containing or 1 seed. Seed 1.5-3 cm long, 2-2.2 cm wide, c. 1.5 cm thick, with a completely translucent, gelatinous, yellow or pink aril up to 3 mm thick; the aril sweet-sour or with a flavour like that of Lansium domesticum. [from Flora Malesiana]

Ecology
In undisturbed mixed dipterocarp to sub-montane forests up to 1000 m altitude. Found in evergreen, primary, secondary, or moss forest, along rivers, on sand, clay, sandy loam, sandstone and ultrabasic.

Uses
The fruit is edible.

Distribution
Peninsular Burma and Thailand into Peninsular Malaysia, Sumatra and Borneo

Local names
Borneo: Langsat burung, Lantupak, Merlangsat, Segara, Suloh.