Nephelium cuspidatum Blume, Rumphia 3 (1847)
Latin for 'pointed'.

Synonyms
Nephelium bassacense Pierre, Nephelium beccarianum Radlk., Nephelium dasyneurum Radlk., Nephelium eriopetalum Miq., Nephelium multinerve Radlk., Nephelium obliquinervis Radlk., Nephelium ophiodes Radlk., Nephelium robustum Radlk.

Description
Mid-canopy tree up to 35 m tall and 69 cm dbh. Stipules absent. Leaves alternate, compound, leaflets penni-veined, almost glabrous to densely hairy, sometimes whitish below. Flowers ca. 5 mm diameter, white-yellowish-red, placed in panicles. Fruits ca. 33 mm long, green-red, soft spiny drupes. Seeds with aril.

Ecology
In undisturbed to slightly disturbed (open sites) mixed dipterocarp forests up to 700 m altitude. Along rivers and streams and on hillsides with sandy to clay soils, but also on limestone. In secondary forests usually present as a pre-disturbance remnant, or planted.

Uses
The wood is locally used for construction work. The trees are often cultivated in forest gardens for their edible fruits.

Distribution
Burma, Indo-China, Thailand, Peninsular Malaysia, Sumatra, Java, Borneo (throughout the island), Philippines.

Local names in Borneo
Bayong, Buah senkelang, Kachay, Kalambuko, Lok, Mengalim, Parot, Rambutan, Rugutuloh.