17. Dalbergia cultrata Graham ex Bentham in Miquel, Pl. Jungh. 254. 1852.
黑黄檀 hei huang tan
Dalbergia fusca Pierre; D. fusca var. enneandra S. Q. Zou & J. H. Liu.
Trees; wood red. Branches slender, slightly finely appressed puberulent, glabrescent, lenticellate. Leaves 10-15 cm; stipules caducous; leaflets (7-)11-13, ovate or elliptic, 2-4 × 1.2-2 cm, leathery, abaxially appressed pubescent, at length glabrescent, adaxially glabrous, apex rounded or emarginate, cuspidate. Panicles axillary and infra-axillary, 4-5 cm; branches 2-3 cm, pubescent. Pedicel ca. 2 mm, slender, puberulent; bracteoles linear, ca. 1 mm, acute. Calyx campanulate, 5-toothed; upper 2 teeth conical, subconnate, lateral 2 broadly triangular, acute, lowest tooth ca. 1.5 × as long as others. Corolla white; petals rather long clawed; standard broadly obovate or subreniform; wings elliptic; keel arcuate. Stamens (9 or)10, monadelphous. Ovary stipitate, glabrous, 3-ovuled. Legume stipitate, oblong to strap-shaped, 6-10 × 0.9-1.5 cm, thinly leathery, finely reticulate opposite 1 or 2 seeds, both ends obtuse. Seeds reniform, compressed, ca. 10 × 6 mm. Fl. Feb, fr. Apr-Sep.
Mixed forests, mountain slopes; ca. 1700 m. Yunnan (Simao) [Laos, Myanmar, Vietnam].