平脉藤 ping mai teng

Micrechites formicina Tsiang & P. T. Li, Acta Phyto-tax. Sin. 11: 385. 1973.

Lianas to 15 m, glabrous except for sepals. Petiole 5-13 mm; leaf blade oblong or narrowly so, 6-17 X 1.5-4 cm, base rounded, apex acute; lateral veins ca. 30 pairs, nearly at a right angle to midvein, flattened on both surfaces. Cymes paniculate, terminal and axillary, 5-branched, ca. 14.5 X 19 cm, many flowered. Flowers small. Sepals ovate, puberulent outside. Corolla yellowish green, lobes longer than tube. Stamens inserted at base of corolla tube; disc ringlike, apex obscurely 5-cleft. Ovary glabrous, half sunken in disc. Style short; pistil head beaklike. Fl. May-July.

* Dense montane forests; ca. 1800 m. S Yunnan.