蛇王藤 she wang teng

Anthactinia horsfieldii M. Roemer; Disemma horsfieldii Miquel; D. horsfieldii var. teysmanniana Miquel; Passiflora hainanensis Hance; P. horsfieldii Blume; P. horsfieldii var. elbertiana H. G. Hallier; P. ligulifolia Masters; P. moluccana Reinwardt ex Blume var. teysmanniana (Miquel) W. J. de Wilde; P. pallida Loureiro (1790), not Linnaeus (1753); P. philippinensis Elmer.

Herbaceous vines, ca. 6 m long. Stem striate, sparsely pubescent. Leaves subopposite, dimorphic; petiole 7-10 mm, with two glands 2-8 mm from base of blade; leaf blade lanceolate to elliptic, 6-10 × 2.5-4(-6) cm, leathery, abaxially canescent, pinninerved, abaxially with 4-6 laminar nectaries, base subcordate, apex obtuse or rounded. Inflorescence sessile, 2(-12)-flowered, ± glabrous; bracts linear. Pedicel 5-25 mm, glabrous. Flowers pinkish white, 3-4.5 cm in diam.; hypanthium 6-9 mm in diam. Sepals greenish, with occasional purple mottling, 1.5-2 cm × ca. 5 mm, glabrous, margin membranous. Petals whitish, 1.2-1.6 cm × ca. 5 mm. Corona in 2 series; outer series 1-1.6 cm, brown at base, white at middle, purple at apices; inner series 1-3 mm, brownish; operculum incurved, brownish, plicate, 1.5-2 mm tall, membranous; disk dark brown, ca. 0.5 mm high; androgynophore 5-10 mm tall. Stamens 5; filaments (5-)6-10 mm, free; anthers 3-5 × 1.5-2 mm. Ovary (sub)sessile, ellipsoid, 2-4 × 1.5-3 mm, glabrescent; styles 3, free, 5-8 mm. Fruit blue at maturity, 1.5-2.5 cm in diam., glabrescent.

Scrub in mountain valleys; 100-1000 m. Guangdong, Guangxi, Hainan [Laos, Malaysia, Vietnam].