薄叶山橙 bao ye shan chen

Lianas to 4 m. Branches gray; branchlets gray yellowish. Petiole ca. 5 mm; leaf blade oblong to narrowly so, 6-15 X 1.5-4 cm, membranous, glabrous, base cuneate or broadly so, apex caudate-acuminate, acumen 1-1.5 cm; lateral veins numerous, subparallel at 70-80° to midvein, flat on both surfaces. Cymes umbellate, terminal, 4-6 cm, 3-5-flowered; peduncle ca. 1.2 cm, puberulent; bracts and bracteoles narrowly elliptic, 2.5-4 mm. Pedicel ca. 5 mm. Sepals ovate. Corolla white, tube ca. 1.8 cm, glabrous outside, pubescent inside; lobes oblong, as long as tube; corona scales 10, narrowly elliptic. Filaments puberulent. Berries sub-fusiform, 6.5-7 X 1.8-2.5 cm, acuminate at both ends or base obtuse. Fl. May-Sep, fr. Sep-Dec.

* Dense montane forests, brushwoods; 800-1800 m. Guangxi, Guizhou, Yunnan.