坚核桂樱 jian he gui ying

Prunus jenkinsii J. D. Hooker & Thomson ex J. D. Hooker, Fl. Brit. India 2: 317. 1878.

Trees to 20 m tall. Branchlets reddish brown to blackish brown, glabrous, with sparse suborbicular small lenticels. Winter buds reddish brown, ovoid, 2–4 mm, glabrous. Petiole 5–10 mm, glabrous; leaf blade oblong to rarely obovate-oblong, (6–)8–16 × 2.5–5 cm, herbaceous to thinly leathery, both surfaces glabrous, abaxially paler and usually with a pair of purplish black basal nectaries near margin, adaxially shining, base broadly cuneate, margin sparsely and shallowly acicularly serrate or sometimes entire near base or basally from middle, apex shortly acuminate to caudate; secondary veins 10–14 on either side of midvein, abaxially raised, adaxially slightly prominent to somewhat impressed. Racemes axillary, solitary, 5–9 cm; rachis sparsely pubescent; bracts 2–2.5 mm, soon caducous, slightly pubescent, basal ones usually sterile, dark, hard, and tridentate at apex. Pedicel 2–3 mm, sparsely pubescent. Hypanthium shortly campanulate, 1.5–2 mm, outside slight pubescent. Sepals ovate-triangular, 1–2 mm, outside slightly pubescent, margin ciliate. Petals white, suborbicular, 2–3 mm in diam., glabrous. Stamens 20–30, 4–5 mm, glabrous. Ovary glabrous. Style slightly longer to nearly as long as stamens. Drupe dark brown, broadly ellipsoid to obovoid-globose, 1.7–2 × 1.4–1.6 cm, glabrous, narrowed towards base and apex but apex more obtuse; endocarp thick and hard, prominently coarsely reticulately rugose. Fl. autumn, fr. winter to spring.

Forests, mountain regions, ravines; 1000--1800 m. SW Yunnan [Bangladesh, Bhutan, N India, N Myanmar].