Volume 8 > Part 1 > Year 2005 > Page 87 > Euphorbiaceae > Aporosa

4. Aporosa falcifera Hook.f.wfo-0000248657

Fl. Brit. Ind. 5: 352. 1887; Airy Shaw, Kew Bull. 26: 215. 1972; Whitmore. Tree Fl. Malaya 2: 60. 1973; Airy Shaw, Kew Bull. Add. Ser. 4: 30. 1975; Schot, Blumea 40: 450. 1995. Fig. 16: C–D.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Tree, up to 30 m high, (sparsely) puberulous when young; branches grey. Stipules falcate, 4–9 by 11–18 mm, beneath black disc-like glands present along margin, late caducous. Leaves: petiole terete, 9–17 mm long, pulvini distinct; blade elliptic, 8–25 by 2.5–7 cm, length/ width ratio 3.2–3.4, coriaceous, drying bluish-green above, golden brownish underneath, base narrowly cordate to rounded, basal glands absent, margin subentire, marginal glands indistinct, apex acuminate, glabrous above, midrib and nerves sparsely puberulous beneath, disc-like glands outside nerve arches; venation (somewhat) raised on both sides, nerves in 10–14 pairs. Inflorescences axillary. Staminate inflorescences 2–5 clustered together, 8–16 mm long, 2–3 mm in diam., puberulous; peduncle 1–4 by 0.5–1 mm; bracts ovate, 0.7–0.9 mm long; glomerules indistinct, ellipsoid, consisting of 9–13 densely set flowers, spaced continuously along apical part of the rachis; pedicel minute. Staminate flowers 1–2 mm long; sepals 4 or 5, obovate, 0.3–0.6 mm long, connate to halfway; stamens 2(3), strongly exserted, 1–1.8 mm long; anthers 0.1–0.2 mm long; pistillode present. Pistillate inflorescences 2 or 3 together, 7–15 mm long, puberulous, flowers up to 11, densely set at apical 4 of rachis; bracts triangular, 0.2–0.3 mm long. Pistillate flowers 2–2.5 mm long; pedicel ca 1 mm long, sericeous; sepals 4 or 5, ovate, patent, 0.5–0.7 mm long; ovary 3-locular subglabrous; stigmas sessile, 2–2.5 mm long. Fruits ovoid, not stiped, not beaked, 9–15 by 6–12 mm, drying dark to greyish brown, sparsely hairy, glabrescent, not fleshy; septae and column glabrous. Seeds 5–6 by 3–4 by 2–3 mm.

Thailand : PENINSULAR: Ranong (Kraburi), Phangnga (Nam Tok Lam Pee).

Distribution : Malay Peninsula (type), Sumatra, Borneo, North Sulawesi.

Ecology : Primary forests, low undulating land, on ridges, slopes, and along river banks; on sandy loam, rich, dark or greyish soil; 5–1,300 m alt.

Vernacular : Nam phueng daeng (น้ำผึ้งแดง)(Trang).