云南厚皮香 yun nan hou pi xiang

Trees 5-12 m tall. Young branches grayish brown; current year branchlets reddish brown, glabrous. Petiole 1-1.5 cm, glabrous, adaxially grooved; leaf blade obovate to obovate-elliptic, 8-15 × 4-7 cm, leathery, abaxially pale green and dark red glandular punctate, adaxially dark green and shiny, both surfaces glabrous and becoming reddish brown when dry, midvein abaxially elevated and adaxially impressed, secondary veins 7-9 on each side of midvein, abaxially slightly raised, and adaxially visible, base broadly cuneate, margin entire to obscurely serrate and slightly revolute, apex acute to abruptly shortly acuminate and with an obtuse tip. Flowers axillary and solitary or 5-10 congested on leafless branchlets. Pedicel ca. 1.5 mm, thickening toward apex. Male flowers (not yet open): bracteoles triangular to ovate-triangular, 1.5-2.5 × 1.5-2.5 mm, margin glandular dentate, apex acute; sepals ovate to suborbicular, 5-6 × 4-5 mm, margin densely glandular dentate, apex rounded; petals broadly obovate, ca. 5 × 4-5 mm; stamens ca. 50, ca. 3.5 mm; filaments short; anthers oblong, ca. 2 mm; pistillode small, glabrous. Bisexual flowers: bracteoles and sepals similar to those of male flowers but larger; petals obovate, 8-9 mm, basally connate for ca. l mm, apex emarginate; ovary globose, usually 2-loculed with 2 ovules per locule; style persistent, ca. 2.5 mm, apically 2-parted. Fruit purplish red when mature, globose, ca. 2 cm in diam., 2-loculed with 2 seeds per locule. Seeds compressed ellipsoid, 10-14 × ca. 6 mm. Fl. May-Jun, fr. Oct-Nov.

● Forests on mountain slopes or in valleys; 1100-1800 m. Yunnan (Hekou, Jinping, Pingbian).