A small shrub, at first an epiphyte, at length a small self-supporting tree up to 25 ft. high; young branchlets about 1/4 in. in diam., tinged with purple in a fresh state, glabrous. Leaves elongate-oblong-lanceolate or sometimes almost linear, gradually and acutely acuminate, narrowed and often cuneate at the base, 3 1/2–14 in. long, 3/4–2 1/4 in. (rarely 3 in.) broad, entire, coriaceous, green above, paler below, mostly with the nerves somewhat straw-coloured when dry, glabrous on both surfaces; midrib impressed above, prominent below, in the larger leaves about 1 1/4 lin. broad at the base, only slightly tapered to the apex, conspicuous and forming a keel to the acumen; lateral nerves numerous, 16–20 on each side of the midrib, diverging from it almost at right angles, slender, looped, the loops forming an undulate intramarginal nerve 1 lin. distant from the margin; tertiary nerves often only slightly less conspicuous than the secondary and parallel with them; veins delicate and often straw-coloured below; petiole short for the size of the blade, 1/2–1 1/2 (rarely 2) in. long, about 1 lin. thick, glabrous. Receptacles axillary, mostly in pairs, pedunculate, depressed-globose, 5–6 lin. in diam. when ripe, orange-coloured, glabrous; peduncle 4–5 lin. long, about 3/4 lin. thick, glabrous. Basal bracts soon deciduous, connate at the base, membranous, glabrous. Ostiole pore-like, small, all the bracts descending vertically into the receptacle. Male flowers very few near the ostiole, with a solitary stamen. Female flowers sessile. Gall flowers pedicellate.
