e-Flora of Thailand
Volume 4 > Part 3 > Year 2018 > Page 235 > Leguminosae-Papilionoideae > Ormosia
11. Ormosia venosa Bakerwfo-0000207326
in Hook.f., Fl. Brit. India 2: 254. 1878; Prain, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 66: 152. 1897; Ridl., Fl. Malay Penins. 1: 615. 1922; Merr. & Chen, Sargentia 3: 84. 1943; van Meeuwen, Reinw. 6(3): 236. 1962; Whitmore & Tantra, Tree. Fl. Indon. Checkl. Sumatra: 132. 1984; Mattapha et al., Thai Forest Bull., Bot. 45(2): 123. 2017.
Accepted Name : This is currently accepted.
Description : Tree to 28 m tall; young shoots, inflorescences and calyces tomentose. Stipules ca 2 by 7 mm, caducous. Leaves with petioles 1.5–3 cm long; rachis 1–2 (5) cm long, densely hairy with velvety brown hairs or tomentose. Leaflets 5–7, oblanceolate, 3–4 by 1–2 cm in flowering, larger in fruiting, 8–10 by 4–5 cm, upper surface glabrous, dark green, lower surface densely tomentose with yellow-brown hairs; apex acute to retuse or emarginate, base cuneate; lateral veins 10–12 pairs, raised below, parallel; petiolues 2–3 mm long. Inflorescences terminal, paniculate, 10–15 cm long, tomentose; bracts 5–8 mm long, ovate, subpersistent; bracteoles similar to bracts, ca 4 by 2 mm, inserted at the top of pedicels, tomentose; pedicels 5–6 mm long, tomentose. Calyx campanulate, 6–7 mm long; lobes triangular, 3–4 by ca 3 mm, apex acute, both sides densely hairy with short yellow-brown hairs, upper lobes 2, lower lobes 3. Corolla white to yellowish with a green tinge at the middle of standard; standard orbicular, with basal callosities, 7–8 by 9.5–10 mm, apex retuse, base inauriculate, margin entire, claw ca 2 mm long; wings 8–9 by 2.5–3 mm, apex obtuse, base inauriculate, margin entire, sculptured, claw ca 2 mm long; keel 8–9 by 2.5–3 mm, base inauriculate, margin entire, claw ca 3 mm long. Stamens all free; filaments glabrous, shorter ones 6–7 mm long, longer ones 9–10 mm long; anthers ca 0.8 by 0.5 mm. Ovary hairy with brown hairs; ovules 1–2; stipe ca 2 mm long; style 8–10 mm long, glabrous; stigma small. Pods ovate to obovate, 4–5 by 2–3 cm, fleshy, woody, yellow when mature, glabrous; valves thickened. Seeds 1 (–2), oblong-elliptic, ca 15 by 15 mm, bright orange.
Thailand : PENINSULAR: Songkhla, Phangnga.
Distribution : Peninsular Malaysia (type).
Ecology : Evergreen forests, ca 280 m alt.
Vernacular : Kra sae met som (กระแซะเม็ดส้ม).