Stem twining, glabrous. Leaves spreading, thinly coriaceous; petiole 1 1/2–2 lin. long; blade 3/4–1 3/4 in. long, 5–10 lin. broad, oblong or oblong-ovate, acute, rounded at the base, glabrous on both sides; secondary lateral veins scarcely or not at all visible on either side. Cymes axillary, about 1/2 in. in diam., lax, few-flowered, with ascending branches; peduncles 2–3 1/2 lin. long, glabrous; bracts about 3/4 lin. long, ovate, subobtuse, ciliolate; pedicels 1 1/2 lin. long, glabrous. Sepals 1/2 lin. long, elliptic, obtuse, minutely ciliate. Corolla about 2 lin. in diam., glabrous; tube about 1/4 lin. long; lobes 7/8 lin. long, elliptic-oblong, obtuse. Coronal-lobes minute, compressed, falcate-oblong, obtuse, reaching to about 2/3 the height of the staminal-column. Style shortly exserted beyond the anthers; apical part cylindric, obtuse, not at all dilated at the top.
