Ovary 2-locular with a single ovule in each locule, pendulous from the apex; style green, filiform, exserted, hairy save at extreme base, the apical 1 mm divisible into two lobes which do not spread and bear the stigmatic surface on their inner faces.
Corolla white, cylindrical or very narrowly funnel-shaped, glabrescent or pubescent outside, glabrous to pilose at the throat; lobes 5, narrowly oblong, ± obtuse or acute, contorted to the left, pubescent outside.
Seed half ovoid, compressed, rugulose; testa characteristically finely transversely wrinkled-striate; albumen horny, not ruminate; embryo small with inferior radicle.
Stems and foliage almost glabrous to densely hairy; branches appearing supra-axillary and often supported by rounded leaves very different from the main foliage.
Stamens 5, inserted at the mouth of the corolla tube; filaments very short; anthers buff, dorsifixed, linear, apiculate, ± bifid at the base, fully exserted.
Flowers sweet-scented, rather small, in sessile mostly dense axillary clusters; bracts and bracteoles triangular-acuminate, not forming cupules.
Leaves opposite, shortly petiolate, mostly thinly coriaceous, mostly oblong-elliptic; stipules keeled, acuminate, soon deciduous.
Calyx tube ovoid; limb-tube campanulate with 5 triangular to lanceolate teeth.
Shrubs, small trees or sometimes lianes or with subscandent branches.
Fruit ovoid, indehiscent, leathery-walled, 2-locular, (1)2-seeded.
Placenta elongated lying along whole side of seed.
Disk shallowly bowl-shaped.