e-Flora of Thailand
Volume 8 > Part 1 > Year 2005 > Page 86 > Euphorbiaceae > Aporosa
2. Aporosa aurea Hook.f.wfo-0000248287
Fl. Brit. Ind. 5: 351. 1887, nomen cons.; Airy Shaw, Kew Bull. 26: 214. 1971; Whitmore, Tree Fl. Malaya 2: 59. 1973.
Accepted Name : This is currently accepted.
Synonyms & Citations :
Description : Shrub to tree, up to 24 m high, mainly glabrous; branches whitish to greyish. Stipules triangular, 4–5 by 2–3 mm, caducous. Leaves: petiole 7–38 mm long, reniform, pulvini distinct; blade (ovate to) elliptic, 6–25 by 2–9.5 cm, length/width ratio 2.6–3, chartaceous, drying yellow to light greenish above and beneath, base rounded to acute, basal glands distinct, blackish, margin subentire, marginal glands rare, apex acuminate to cuspidate, disc-like glands few, within marginal arches; venation distinct on both sides, nerves in 8–12 pairs. Inflorescences axillary. Staminate inflorescences 2–7 together, 10–19 by 1.5–2 mm, hairy; peduncle absent; bracts triangular, 0.6–1 mm long; glomerules indistinct, with 8–10 densely set flowers, continuously spaced along rachis. Staminate flowers 0.7–1 mm long, scented, sessile; sepals 4, obovate, 1–1.5 mm long, free, light yellow;stamens 2,0.5–0.8 mm long, not exserted, light yellow; anthers 0.2–0.3 mm long; pistillode absent. Pistillate inflorescences 1–3 together, 2–4 mm long, tomentose, flowers up to 5, densely set along rachis; bracts triangular, 0.6–1 mm long. Pistillate flowers 1.8–2.5 mm long; pedicel minute, sericeous; sepals 4 or 5, ovate to elliptic, patent, 0.7–1.2 mm long; ovary 2-locular, glabrous; stigmas 0.4–0.5 mm long, bifid to near base. Fruits globose, not stiped, not beaked, 8–11 by 8–11 mm, maroon-red, drying brownish to black, glabrous, not fleshy; septae and column sericeous. Seeds 6–8 by 7–8 by 3–4.5 mm, orange.
Thailand : CENTRAL: Nakhon Nayok; PENINSULAR: Chumphon, Ranong, Surat Thani, Phangnga, Nakhon Si Thammarat, Phatthalung, Trang, Satun, Songkhla, Pattani, Yala, Narathiwat.
Distribution : Malay Peninsula (type), North Sumatra.
Ecology : Primary evergreen, mixed deciduous, secondary and disturbed forests, often along water or forests margins; on limestone, granite, sandstone, and sandy soil; 0–500 m alt.
Vernacular : Kraduk hang (กระดูกค่าง)(Nakhon Si Thammarat, Yala); kluai khao (กล้วยข้าว)(Trang); khi non (ขี้หนอน), nam phueng lang kao (น้ำผึ้งหลังเขา)(Peninsular); ya-ding (ยาดิง)(Malay-Peninsular).
Uses: Wood may be used for furniture.