景东千斤藤 jing dong qian jin teng

Herbaceous vines, glabrous. Stems slender, longitudinally striate, 1.5-2 mm in diam. Petiole longer than leaf blade; leaf blade conspicuously peltate, broadly triangular to oblate-triangular, 5-11 × 6-10 cm, papery or thinly papery, abaxially olive green, adaxially dark green when dry, base subtruncate, sometimes slightly rounded or concave, margin conspicuously repand dentate, apex obtuse or acuminate, palmately 10- or 11-veined, reticulation conspicuous. Inflorescences simple umbelliform cymes, axillary, usually on leafless short branches, slender and slightly fleshy; peduncle 1.5-2.5 cm; cymelets 3 or 4; pedicel slender, 1-2 mm. Male flowers: sepals 6 in 2 whorls, inner and outer whorls ± similar, elliptic, ca. 2 mm, apex caudate; petals 3, slightly fleshy, to 1 mm; synandrium ca. 1 mm. Female flowers unknown. Infructescences axillary, slightly twining, on leafless or microphylline short branches; fruiting peduncle slender, 3-5 cm; fruiting pedicels ca. 4 mm. Endocarp obovate, ca. 7 × 5 mm; condyle perforate.

● S Yunnan.