33. Ormosia microphylla Merrill, Sargentia. 3: 109. 1943.
小叶红豆 xiao ye hong dou
Fedorovia microphylla (Merrill) Yakovlev; Ormosia microphylla var. tomentosa R. H. Chang.
Trees or shrubs, 3-10 m. Bark of stems gray-brown. Old branches purplish brown, terete, nearly glabrous; branchlets densely appressed brownish pubescent; bud naked, densely appressed yellowish brown pilose. Leaves imparipinnate, 12-16 cm; petiole 2.2-3.2 cm; rachis 6.5-7.8 cm, densely appressed yellowish brown pilose, prolonged 5-7 mm below terminal leaflet; leaflets 11-15(-17); petiolule 1.5-2 mm, densely appressed yellowish brown pilose; blades dark green adaxially, paler abaxially, elliptic, (1.5-)2-4 × 1-1.5 cm, papery, ± appressed pubescent abaxially, glabrous or sparsely pilose adaxially, base rounded, apex acute or shortly acuminate; midvein densely yellowish pubescent, lateral veins 5-7 pairs, fine, raised abaxially, inconspicuous, arcuate, not anastomosing along margin, veinlets reticulate. Inflorescence terminal. Legumes subrhombic or oblong, 5-6 cm, compressed, apex mucronate, stipe short; valves dark brown or black, thickly leathery or woody, glossy, internally transversely septate. Seeds 3 or 4, red, ca. 2.2 × 0.6-0.8 cm, hard, slightly glossy; hilum 3-3.5 mm.
● Dense forests, mixed forests, valleys, mountain slopes, roadsides; 500-700 m. Fujian, Guangdong, E and S Guangxi, SE Guizhou.