Siphonosmanthus venosus (Pampanini) Knoblauch.

Shrubs or small trees 2-4(-10) m. Branchlets, petiole, and bracts pubescent. Petiole 1-1.5 cm; leaf blade narrowly elliptic, lanceolate, or oblanceolate, (4.5-)8-10(-14) × (1.5-) 2.5-3(-4) cm, leathery, base cuneate to blunt, margin entire or with 3 or 4 pairs of teeth at middle, rarely fully serrate, apex acuminate or rarely acute; midrib glabrous or puberulent adaxially; primary veins 9-11 on each side of midrib, distinctly raised. Cymes fascicled in leaf axils, 4-10-flowered; bracts ca. 2.5 mm. Pedicel 3-8 mm, glabrous. Calyx 1-1.5 mm. Corolla white; tube ca. 2.5 mm; lobes ovate, ca. 2 mm. Stamens attached to middle of corolla tube; connective apically projecting into a large rounded appendage. Drupe not seen. Fl. Aug-Sep.

* Montane woods; 300-1100 m. Hubei