青枣核果木 qing zao he guo mu

Cyclostemon cumingii Baillon, Étude Euphorb. 562. 1858; C. iwahigensis Elmer.

Trees 9-20 m tall, to 50 cm d.b.h.; branchlets yellow pubescent when young, lenticellate. Stipules caducous; petiole 4-8 mm; leaf blade ovate or oblong to ovate-lanceolate, 6-17 × 2.5-6.5 cm, leathery, both surfaces glabrous, adaxially glossy, base cuneate to obtuse, slightly oblique, margin irregularly undulate-serrate or obscurely obtusely so, apex acute to long acuminate; lateral veins 7-9 pairs, reticulate veins prominent. Male flowers clustered, 5-6 mm in diam.; pedicels 13-18 mm, pubescent; sepals 4, broadly ovate, extrorsely flexed, pubescent at base on both surfaces; disk annular, apex lobed; stamens ca. 10. Female flowers: pedicels 10-12 mm; sepals 4, obovate, apex obtuse, densely pubescent; disk margin crenellate; ovary ovoid, 2-locular; stigma obtriangular. Drupes oblong to ellipsoid, 14-16 mm, pubescent; endocarp crustaceous, 2-celled, 1-seeded. Fl. May-Jun, fr. Aug-Dec.

Forested slopes; 300-800 m. Guangdong, Guangxi, Hainan, Yunnan [Philippines].