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FOC | Family List | FOC Vol. 10 | Fabaceae | Ormosia

5. Ormosia sericeolucida L. Chen, Sargentia. 3: 107. 1943.

亮毛红豆 liang mao hong dou

Trichocyamos sericeolucidum (L. Chen) Yakovlev.

Trees evergreen, to 24 m, to 34 cm d.b.h. Bark grayish brown with shallow longitudinal stripes. Branches, branchlets, petiole, rachis, and inflorescence densely appressed fulvous pubescent. Leaves imparipinnate, 16-21 cm; petiole 3.5-4 cm; rachis 7.6-7.8 cm, prolonged 3-15 mm below terminal leaflet; leaflets 5-7; petiolule 8-10 mm, densely appressed pubescent; blades oblong-oblanceolate, obovate-oblong, or oblong, widest above middle, 5.5-11.6 × 2.3-4.8 cm, leathery, adnate yellow sericeous abaxially, olive-green, glossy, and glabrous adaxially, base cuneate, margin slightly revolute, apex acute or obtuse; midvein impressed adaxially, lateral veins 10-12 pairs, conspic­uous and raised abaxially, inconspicuous adaxially. Panicles ter­minal, ca. 20 cm, much branched. Calyx ca. 1 cm, persistent; teeth unequal, densely appressed pilose. Corolla white. Leg­umes slightly compressed, elliptic or obovate, oblique, 3-5 × 2.2-2.6 cm, apex rounded to shortly acuminate, sometimes oblique; stipe 4-5 mm; valves leathery, ca. 1 mm thick, densely appressed fulvous pubescent, internal septum absent. Seeds 1 or 2, reddish brown, becoming chestnut-brown at maturity, oblique, subrhombic-square or obovate, compressed, 1.6-1.8 × 1.2-2 × 0.3-0.4 cm, glossy; hilum small, less than 1 mm, slightly oblique. Fl. Aug, fr. Oct.

● Valleys or streamsides in mixed forests; 300-2400 m. Guang­dong (Yangchun), Guangxi (Shangsi).


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