Volume 8 > Part 1 > Year 2005 > Page 98 > Euphorbiaceae > Aporosa

14. Aporosa planchoniana Baill. ex Müll.Arg.wfo-0000249451

in DC., Prodr. 15(2): 475. 1866; Hook.f., Fl. Brit. Ind. 5: 350. 1887: Gagnep. in Lecomte, Fl. Indo-Chine 5: 560. 1927; Airy Shaw, Kew Bull. 26: 217. 1972. Fig. 16: F-G.

Accepted Name : This is currently accepted.

Description : Shrub to tree, up to 10 m high; young branches very sparsely puberulous, rest mainly glabrous. Stipules triangular, 2–3 by 1.2–1.5 mm, caducous. Leaves: petiole reniform, 3–8 mm long, pulvini distinct; blade ovate (to elliptic), 5.5–13 by 1.5–3.5 cm, length/width ratio ca 3.7, papery, drying greenish-brown to greenish-yellow on both sides, base acute to cuneate, basal glands blackish; margin subentire to crenulate, marginal glands few, brownish-black, apex cuspidate, completely glabrous, dots on upper surface dark, densely set, disc-like glands few, within marginal arches; venation (slightly) raised on both sides, nerves in 9–11 pairs. Inflorescences axillary. Staminate inflorescences 1–3 together, 12–37 by 1.2–1.8 mm, puberulous, yellow; peduncle absent; bracts triangular, 0.3–0.7 mm long; glomerules with 4–6 densely set flowers, slightly spaced from each other along rachis. Staminate flowers 0.5–1 mm long, sessile, white to yellow; sepals (3)4(–6), obovate, 0.4–0.8 mm long, free; stamens 2,0.4–0.9 mm long, not to slightly exserted; anthers 0.2–0.3 mm long; pistillode indistinct. Pistillate inflorescences 1 or 2 together, 3–6 mm long, densely red puberulous, flowers up to 9, densely set along rachis; bracts triangular, 0.5–0.8 mm long. Pistillate flowers 3–5 mm long, sessile, yellow-green; sepals 3 or 4. ovate, ascending, 0.4–0.7 mm long; staminodes 0 or 2; ovary 2 locular, 2–3.5 mm long; stigmas slightly raised, 0.5–1 mm long, bifid to ca halfway. Fruits ovoid to ellipsoid, shortly stipitate and beaked, 7–11 by 5–7 mm, drying (light) brown, glabrous, not fleshy; septae and column sparsely sericeous. Seeds 5–7.5 by 4–5 by 2–4 mm.

Thailand : EASTERN: Surin, Ubon Ratchatani; SOUTH-WESTERN: Prachuap Khiri Khan; CENTRAL: Saraburi; SOUTH-EASTERN: Sa Kaeo, Chon Buri, Chanthaburi, Trat; PENINSULAR: Chumphon, Ranong, Surat Thani, Phuket, Krabi, Trang.

Distribution : Burma (type), Indochina.

Ecology : Secondary and disturbed evergreen or mixed deciduous forests, shaded bamboo forests; in dry, light, open, or shrubby areas; along rivers, roads, by swamps and in clearings; on sandy soil; 0–400 m alt.

Vernacular : Ta krim (ตากริม)(Southwestern); phrik thai dong (พริกไทยดง), mak thaen (หมากแท่น)(Prachin Buri); phuang pla krim (พวงปลากริม)(Chanthaburi); i kim (อีกิม)(Trat); kim (กิม)(Southeastern); ka krim (กากริม), krim (กริม), ma krim (มากริม)(Peninsular).

Notes: Closely resembles Aporosa yunnanensis and to a lesser extent A. wallichii (and of course A. octandra). It differs mainly from A. yunnanensis in the smaller, narrower leaves with short petiole, distinct basal glands, and with dense dots on the upper surface (indistinct or absent in A. yunnanensis), also the staminate inflorescences and fruits are smaller and narrower.