Macaranga lamellata Whitmore

Small tree up to ca. 8 m tall and 5 cm dbh, reproductive from 3 m tall. Twigs hollow, ant inhabited, glabrous, usually glaucous, with small ant openings (ca. 1 mm diameter). Stipules narrowly ovate to triangular, (early caduceus to) semi-persistent, recurved, not surrounding the twigs completely, 21-30 mm long by 9-15 mm wide. Petioles glabrous, up to ca. 47 cm long. Leaves alternate, peltate, ovate, 24.5-65 cm long by 14.5-36 mm wide, length/width-ratio 1.57-1.69; secondary veins 10-19, ending in the margin; leaf base broadly rounded, peltate margin length 4-9 cm; leaf margin with glands; leaf upper surface glabrous; leaf lower surface glabrous to hairy, glaucous, numerously gland dotted. Staminate inflorescences branched; flowers clustered per bracteole; bracteoles with entire margins (sometimes one or two cusps). Pistillate inflorescences branched; fruits 10-18 mm wide, 4-5(-6)-locular, two glandular patches per carpel wall placed on lengthwise raised ridges.

Ecology: Collected up to ca. 600 m altitude. A shade tolerant forest understorey species, usually found in primary forest.

Distribution: Endemic for Borneo, where it has been collected throughout the island.