勐海豆腐柴 meng hai dou fu chai

Shrubs or trees. Branchlets, petioles, and inflorescences yellow-brown circinate tomentose. Branchlets with small lenticels, becoming grayish yellow and glabrous. Petiole 3-4.5 cm; leaf blade elliptic-lanceolate, elliptic, or broadly ovate, 14-18 X 7-9.5 cm, papery, abaxially tea brown when dry and tomentose when young, adaxially dark brown when dry and densely minutely hirsute, base rounded to truncate, margin entire, apex acuminate; veins 7-9 pairs, curve apically along margins and slightly anastomose. Inflorescences 5-8 X 8-13 cm. Calyx cup-shaped, ca. 1 cm, slightly 2-lipped, pilose, 4-toothed; teeth ovate, with small yellow glands. Corolla yellow-green, ca. 2 mm; tube ca. 1.5 mm, glabrous except for a ring of hairs inside above throat; lobes 4, oblong, spreading. Stamens and style exserted. Ovary glabrous, apically glandular. Fruit black, ovate, sparsely yellowish glandular. Fl. and fr. May-Jul.

* Forests; 1500-1800 m. S Yunnan.