马肾果 ma shen guo

Milnea edulis Roxburgh, Fl. Ind. 2: 430. 1824; Aglaia testicularis C. Y. Wu.

Trees 5-9 m tall, to 30 cm d.b.h. Bark rufous. Young branches pale brown, glabrous, with inconspicuous lenticels. Leaves 25-30 cm; petiole and rachis 10-15 cm, glabrous but sparsely brown squamate when young; leaflets 7(-11), alternate to subopposite; petiolules 3-11 mm, slightly inflated; leaflet blades ovate-oblong to elliptic, 5-10(-22) × 1.5-4(-11) cm, papery, both surfaces glabrous but abaxially sparsely lepidote along midvein, midvein abaxially prominent and adaxially conspicuously depressed, secondary veins 9-12 on each side of midvein and abaxially prominent, base rounded to cuneate, apex acute to acuminate. Thyrses axillary, 5-15 cm, sparsely branching, brown squamate. Flowers subsessile, globose, ca. 2 mm in diam. Calyx 5-lobed; lobes rounded, sparsely brown squamate, margin ciliate. Petals 5, broadly ovate, glabrous. Staminal tube globose, free from petals, glabrous, apical margin entire or undulate; anthers 5, ovoid, inserted on or near throat of tube, included or ± exserted. Style very short; stigma conical, truncate, glabrous. Fruit indehiscent, brown, elliptic, ca. 5.5 × 3-3.5 cm, yellowish lenticellate, densely brown squamate, basally contracted into a 1-1.5 cm stipe, apex plump and turbinate; persistent calyx inconspicuous. Seeds 1-3 per fruit, ellipsoid, ca. 4 cm; hilum to 3 cm. Fl. Nov-Jan, fr. Nov-Jan.

Evergreen broad-leaved forests on limestone hills; 1200-1800 m. SE Yunnan (Malipo) [Bhutan, Cambodia, India, Indonesia, Laos, Malaysia, Myanmar, Thailand, Vietnam].

The timber of this species is red, hard, and usually used for making carts, boats, furniture, etc.