Shrubs or small, deciduous trees; bark pale brown; leaves shortly petioled, opposite, membranous, broadly ovate to elliptic-oblong, acuminate at apex, rounded or tapering at base, glabrous or pubescent, especially beneath, nerves 10-12 pairs, strong, arched; flowers white, inodourous, fragrant in terminal, many flowered corymbose cymes; bracts small, ciliate; calyx 5-lobed, small, lanceolate, acuminate, usually glandular within; corolla salver shaped, white, lobes-5, oblong, overlapping to left, throat contracted, without ring of hairs, tube cylindric, slender, pubescent; stamens-5, epipetalous, included, inserted near the base of tube; anthers oblong-lanceolate, mucronate, cells rounded at the base; disk absent; carpels-2, distinct, ovules many celled; style short, filiform, stigma oblong, fusiform, entire or 2-lobed; follicles 20-40 cm long, very slender, terete, coriaceous, obscurely torulose, usually marked with narrow, white spots; seeds linear, about 1 cm long, narrow, coma pale brown, deciduous.