Volume 4 > Part 3 > Year 2018 > Page 226 > Leguminosae-Papilionoideae > Ormosia

1. Ormosia fordiana Oliv.wfo-0000197146

Hooker’s Icon. Pl.: 25, t. 2422. 1895; Dunn & Tutch., Kew Bull. Add. Ser. 10: 88. 1912; Merr., Lingnan. Sci. J. 5: 91. 1928; Chun, Sci. J. Col. Sci. Sunyatsen Unvi. 2(3): 54. 1930; Hu & Chun, Ic. Pl. Sin. 4: 17, t. 167. 1935; Merr. & Chen, Sargentia 3: 101. 1943; Niyomdham, Thai Forest Bull., Bot. 13: 5, f. 1. 1980; H.Sun & Vincent in Z.Y.Wu et al., Fl. China 10: 77. 2010.— Ruddia fordiana (Oliv.) Yakovlov, Bot. Zhurn. (Moscow & Leningrad) 56(5): 655. 1971.

Accepted Name : This is currently accepted.

Description : Tree to 18 m tall; young shoots, leaf-rachis, inflorescences and leaves densely appressed rusty pubescent, becoming sparsely hairy or glabrescent. Stipules small, caducous. Leaves with petioles 3.5–7.5 cm long; rachis 8–13 cm long. Leaflets 7–9, elliptic to lanceolate, 7–15 by 2.5–4 cm, apex acuminate to cuspidate, base cuneate, coriaceous, upper surface glabrous, lower surface glabrescent; lateral veins 11 pairs, inconspicuous on both surfaces; petiolules 5–8 mm long. Inflorescences mostly terminal, paniculate, sometimes axillary, racemose, 10–15 cm long; pedicels ca 10 mm long. Calyx ca 2 cm long; teeth oblong-lanceolate, acute or slightly obtuse, much longer than tube, densely appressed rusty pubescent. Corolla lavender or purplish red, fragrant; standard suborbicular, ca 2 cm in diam., upper margin strongly inflexed, yellow spotted subcentrally, claw short, ca 2 mm long, thick; wings oblong-obovate, ca 18.5 by 9 mm, claw short; keel oblong-elliptic, ca 17 by 8.5 mm., claw short. Stamens unequal; filaments basally thickly compressed. Ovary flattened, densely appressed rusty silky pubescent; ovules 4–5; style incurved, glabrescent. Pods flat, broadly oblong, 5–7 by 3.5–4 cm, apex obliquely beaked; stipe 0.5–1 cm long, compressed; valves woody, ca 2 mm thick, dehiscent, septum absent, slightly thickened at margin, tip reflexed, yellowish when dry, glabrous; calyx persistent. Seeds 1–4, oblong-ellipsoid, 2.5–3 by 1.5–2 cm, slightly flattened, obtuse at ends; testa crustaceous, red, fragile when dry and free from cotyledons.

Thailand : NORTHERN: Chiang Rai (Phra That Doi Tung).

Distribution : Myanmar, China (type), Laos, Cambodia, Vietnam.

Ecology : Dry evergreen forests, 500–1,000 m alt.