24. Jasminum microcalyx Hance, J. Bot. 21: 323. 1883.
小萼素馨 xiao e su xin
Jasminum inornatum Hemsley.
Shrubs scandent, to 5 m. Branchlets terete, glabrous or slightly pubescent. Leaves opposite, simple; petiole 5-12 mm, articulate at middle, puberulent; leaf blade broadly ovate, elliptic, to ovate-lanceolate, 3.5-9 × 1.5-4.5 cm, leathery, glabrous except for tufts of hairs in vein axils abaxially, base broadly cuneate, rounded, or truncate, apex acute to acuminate; primary veins 3 or 4 on each side of midrib, slightly obvious. Cymes terminal or axillary, (1 or)2-5-flowered; bracts linear, ca. 1 mm. Pedicel clavate, 1-5 mm. Calyx urceolate, ca. 1 mm; lobes 4 or 5, orbicular or subtruncate. Corolla white; tube 1-1.6 cm; lobes 5 or 6, ovate, 4-5 mm. Berry black, ellipsoid, 9-12 × 4-6 mm. Fl. May-Oct, fr. Dec-Feb.
Valleys, woods, thickets; low elevations. Guangdong, Guangxi, Hainan, Yunnan (Mengla Xian) [Vietnam]