Aporosa confusa Gage, Rec. Bot. Surv. India 9 (1922)

Synonyms
Aporusa mollis Merr.

Diagnostics
Sub-canopy tree up to 27 m tall and 27 cm dbh. Stipules ca. 4 mm long. Leaves alternate, simple, penni-veined, hairy below. Flowers ca. .7 mm in diameter, yellowish, placed in compressed racemes. Fruits ca. 19 mm long, yellow-orange-red, dehiscent capsule, seeds with orange aril.

Description
Tree, up to 20(-27) m high, up to 28 cm diameter. Bark blackish, (dark) brown, pale reddish, green to grey, or whitish, thin, smooth; inner bark light brown, greenish brown, or yellowish white. Wood orange, (pale) yellow, or whitish. Young branches tomentose. Stipules narrowly ovate, oblique, 3-5 by 8-9 mm, black glands along margin beneath, sparsely hairy, present in young stages. Petiole terete, grooved, 8-19 by 1-2 mm, tomentose, glabrescent, lower pulvinus 2-3 by c. 2 mm, upper pulvinus 3-7 by 1.8-3.5 mm, both distinct. Leaves narrowly ovate to (narrowly) elliptic, 9-25.5 by 4-10 cm; base rounded to acute, basal glands absent; margin lowly undulate to lowly glandular- crenate, marginal glands many, distinct, black or brown; apex acuminate to cuspidate; blade thinnish, young leaves lowly granular above and beneath, dull, not brittle, drying (dark) grey-green above and beneath, sometimes brownish or yellowish, nervation lighter below, sparsely hirsute, midrib and nerves hirsute beneath, glabrescent; dots irregularly set, fine, grey, mostly indistinct; disc-like glands seldom few, small, greyish, along the margin. Nervation: midrib slightly prominent above, prominent beneath; nerves 10-14 pairs, slightly prominent to flat above, prominent beneath, marginal arches distinct, 1.2-2 mm from the margin; tertiary veins and venation distinct, fading above, rather densely reticulate, slightly scalariform, flat to slightly sunken above, slightly prominent beneath. Inflorescences axillary or just below the leaves. Staminate inflorescences 1-3 clustered together, 12-32 by 5-9 mm, tomentose; peduncle 0.5-8 by 1-1.5 mm; bracts inconspicuous, broadly triangular, 0.3-0.5 mm long, sparsely puberulous; glomerules sometimes slightly interrupted at base of rachis, densely massed at apical end of rachis, ellipsoid, indistinct, consisting of more than 10 densely set flowers; pedicel absent. Staminate flowers 0.5-0.8 mm long; sepals 4 or 5, ovate, 0.3-0.6 mm long, connate at base, sparsely hairy outside, glabrescent, glabrous inside, margin ciliate; stamens 2, slightly exserted, 0.5-1 mm long; anthers 0.1-0.2 mm long, connective glabrous; pistillode absent. Pistillate inflorescences not seen, induced from infructescences to be 1 or 2 clustered together, tomentose, flowers single at apical end of rachis; bracts broadly triangular, 0.5-0.8 mm long, puberulous; bracteoles ovate, 0.3-0.5 mm long, puberulous; pedicel present, tomentose. Pistillate flowers not seen; sepals in young fruit 6 or 7, ovate, reflexed, 1.2-1.5 mm long, fleshy, puberulous; ovary probably globose to ellipsoid, 3- (or 4-)locular, smooth, puberulous; stigmas sessile, broad, apically almost completely divided, flattened on top of the ovary, straight, 0.8-1 mm long, apically laciniate to papillate above, glabrous, connate to the ovary beneath. Infructescences 3-6 by 1.5-2.5 mm, tomentose; fruiting pedicel 3-9 mm long, tomentose. Fruits globose to broadly elliptic, not stiped, not beaked, 16-21 by 16-22 mm, smooth, drying brownish orange, sparsely tomentose; pericarp 2-5.5 mm thick, fleshy; septae and column glabrous. Seeds 1-4, half-terete, ellipsoid, 9-12 by 8-10 by 4-5 mm. [from Flora Malesiana: http://www.nationaalherbarium.nl/Euphorbs/specA/AporosaT.htm]

Ecology
Primary, secondary, open bamboo, and disturbed (dense) forest; on hillsides, low ridges, ridge tops, along rivers, roadsides, and in orchards; undulating or flatland. Soil: clay, loamy, lime, sandstone, or basalt, brownish to black. Altitude: up to 1600 m, but generally below 600 m.

Uses
Wood is used for house building. Fruits are edible.

Distribution
Peninsular Malaysia, Sumatra, Borneo.

Local names
Borneo Janggau, Jangit, Kayu bloo tui, Kayu masam, Kayu puchat, Kayu untut ayam, Limpasu gabak, Lumbid, Sampaheneng, Sangkulapit.
Peninsular Malaysia Sebasah, panatan (Malay).
Sumatra Punding undang, limpaung, medang bubu.