大叶桂樱 da ye gui ying

Prunus zippeliana Miquel, Fl. Ned. Ind. 1: 367. 1855; Laurocerasus macrophylla C. K. Schneider; L. zippeliana var. crassistyla (Cardot) T. T. Yü & L. T. Lu; P. kanehirae Hayata ex Hisauchi; P. macrophylla Siebold & Zuccarini (1845) not Poiret (1816); P. macrophylla Siebold & Zuccarini var. crassistyla Cardot; P. oxycarpa (Hance) Maximowicz; P. zippeliana f. angustifolia T. T. Yü & L. T. Lu; P. zippeliana var. crassistyla (Cardot) J. E. Vidal; Pygeum oxycarpum Hance.

Trees 10–25(–30) m tall. Branchlets brown, grayish brown, or blackish brown, glabrous, with distinct suborbicular small lenticels. Petiole 1–2 cm, stout, glabrous, with a pair of flat basal nectaries; leaf blade narrowly elliptic-lanceolate, oblong-lanceolate, broadly ovate, elliptic-oblong, or broadly oblong, (5–)6–19 × (1.5–)2–8 cm, leathery, both surfaces glabrous, abaxially greenish, adaxially dark green, base broadly cuneate to subrounded, margin with sparse to dense coarse black glandular serration, apex acute to shortly acuminate; secondary veins 7–13 on either side of midvein, abaxially prominent, adaxially flat to slightly impressed. Racemes solitary or to 4 in a fascicle, 2–6 cm, pubescent; bracts 2–3 mm, puberulous, basal fertile ones often apically tridentate, basal most ones often sterile, stout, glabrous, and conspicuously tripartite at apex. Flowers 5–9 mm in diam. Pedicel 1–3 mm, pubescent. Hypanthium campanulate, ca. 2 mm. Sepal ovate-triangular, 1–2 mm, outside sparsely pubescent, apex obtuse to rarely acute. Petals white, suborbicular, 2–4 mm, margin usually ciliate. Stamens 20–25, 4–6 mm. Ovary glabrous. Style to 4 mm, glabrous. Drupe blackish brown, oblong to ovoid-oblong, 1.8–2.4 × 0.8–1.1 cm, glabrous, apex acute and mucronate; endocarp glabrous, slightly reticulately rugose. Fl. Jul–Oct, fr. winter.

Mixed forests, thickets, calcareous mountain regions; 400--2400 m. Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Taiwan, Yunnan, Zhejiang [Japan, N Vietnam].