Mallotus griffithianus (Műll.Arg.) Hook.f.

Small trees up to ca. 20 m tall and 25 cm dbh, reproductive from 3 m tall and 1 cm dbh. Twigs solid, usually glabrous, rarely with some scatterd long simple hairs, apically often completely covered by reddish glands. Stipules triangular, early-caducous, erect, two stipules for each opposite leaf pair, surrounding the twigs completely, 3-8 mm long by 1.5-2 mm wide. Petioles glabrous to sparsely long simple hairy, up to ca. 9 cm long, strongly pulvinate basally and apically, sometimes densely reddish gland covered. Leaves opposite, one of each pair scale-like (possibly two fused stipules); large leaf ovate to elliptic, 14.5-28 cm long by 5-16 cm wide, length/width-ratio 1.71-3.45; secondary veins 10-12, not ending in the margin (fading); leaf base rounded to obtuse; leaf margin without glands; leaf upper surface glabrous; leaf lower surface glabrous, sometimes with few scattered long simple hairs on veins. Staminate inflorescences branched; with only one flower per bracteole; bracteoles with entire margin. Pistillate inflorescences usually branched; fruits 12-18 mm wide, 3-locular, many long spines, each spine terminating in a globose gland.

Ecology: Collected up to ca. 900 m altitude. A shade-tolerant forest understorey species, usually found in primary forest, but also present in closed secondary forest.

Distribution: Peninsular Thailand and Malaysia, and Borneo. In Borneo collected in Brunei, Sarawak, Sabah, East- and Central-Kalimantan.