月叶西番莲 yue ye xi fan lian

Herbaceous vines, ca. 2 m long. Stem striate, pubescent. Petiole 1.5-2.5 cm, with 2 glands in basal 1/3 to middle; leaf blade 2.5-9 × 2-7 cm, abaxially with 4 small nectaries near apex of midvein, deeply 2-lobed, pubescent, base rounded. Inflorescences 2-16-flowered. Pedicel 1-5 mm, pubescent. Flowers greenish, 7-10 mm in diam.; hypanthium ca. 4 mm wide. Sepals green, 3-6 × 3-4 mm, pubescent. Petals whitish, 3-6 × 2-3 mm, glabrous. Coronal filaments in two series; outer series ca. 5 mm, filaments white; inner series ca. 1 mm, filaments white, capitate at apex; operculum incurved, white, plicate, 1-1.5 mm tall, membranous; disk green, ca. 0.2 mm high; androgynophore 2.5-3 mm tall. Stamens 5; filaments ca. 3 mm, free; anthers ca. 2 × 1.5 mm. Ovary sessile on androgynophore, ovoid-ellipsoid, ca. 1.5 mm, glabrous; styles 3, free, 2.5-3 mm. Fruit blue at maturity, globose, 1-1.5 cm in diam., glabrous. Fl. Apr-May.

● Forests in valleys; 600-1500 m. S Yunnan (Simao, Xishuangbanna).