Slender shrubs or subshrubs. Leaves opposite, linear-subulate to lanceolate; stipules sheathing the stem, united with petiole, with fimbriate margin. Flowers fragrant, heterostylous, solitary or few together terminating short shoots; pedicels short. Calyx-tube obovoid; lobes 4, narrowly triangular to linear. Corolla with slender tube; lobes 4, induplicate-valvate in bud. Ovary 2-celled with numerous ovules on peltate placentas inserted at the base of the septum; style with filiform stigma-lobes shortly exserted in long-styled flowers, included in short-styled flowers. Capsule with a short beak, loculicidally dehiscent. Seeds flat, elliptic, reticulate. Genus of two species in north-eastern tropical Africa.