stem twining, slender, woody, glabrous, minutely tuberculate; leaves glabrous, thin; petiole 2–6 lin. long; blade 1 1/2–3 1/2 in. long, 1/2–1 3/4 in. broad, lanceolate to elliptic, acute, acuminate or shortly cuspidate at the apex, acute at the base; cymes lateral at the nodes or subterminal, very lax, once or twice dichotomously or trichotomously forked, pedunculate, glabrous; branches 3/4–3 in. long, racemosely few-flowered; peduncle 3/4–2 1/4 in. long; bracts 1/2–1 lin. long, subulate, glabrous; pedicels 1/2–1 in. long, glabrous; sepals about 1 1/2 lin. long, 2/3 lin. broad, oblong-lanceolate, acute, glabrous; corolla long-acuminate and twisted in bud, glabrous; tube 2–2 3/4 lin. long, campanulate; lobes spreading, twisted, 4–5 lin. long when unrolled, lanceolate, acuminate, or tapering from a 1 1/4–1 1/2 lin. broad base to a linear apex; corona-lobes affixed at the middle of the corolla-tube, 1/3– 1/2 lin. long, ovate or rhomboid-ovate, obtusely pointed, fleshy; stamens arising 3/4 lin. above the base of the corolla; filaments very short; anthers nearly 1/2 lin. long, ovate, very acuminate, connivent over the very short conical apex of the style; follicles 4–8 1/2 in. long, 2–2 1/2 lin. thick, terete, acuminate, slightly nodose; seeds 5 lin. long, 1 lin. broad, linear-oblong, keeled and concave on one side, convex, with raised irregular lines on the other side, glabrous, dark brown. null
