Calophanes D.Don in part: t. 181 (1833).
Suffrutices or shrublets. Leaves usually elliptic and entire. Inflorescence axillary, dichasial cymes or solitary flowers; bracteoles 2, shorter than calyx. Calyx regular, persistent; lobes 5; tube cylindric or narrowly campanulate, 5-ribbed, longer than lobes. Corolla 2-lipped, pubescent, upper lip 2-lobed, rugula indistinct; lower lip 3-lobed; lobes oblong; aestivation contorted; tube longer than lobes, +/- cylindric below, campanulate above. Androecium: fertile stamens 4, didynamous, subsimilar, arising in pairs in throat of corolla tube or +/- halfway down, exserted or included; filaments linear; anthers 2-thecous; thecae parallel, oblong, muticous; staminodes 0. Pollen prolate, 3-colporate, with many pseudocolpi; pore lipped; surface pusticulate. Disc annular, with projection perhaps representing a fifth stamen. Gynoecium: ovary elliptic, with 2 ovules in each locule; style terete, exserted, pubescent; style branch 1, ventral lobe flattened, or sometimes expanded, longer than broad. Capsule cylindric, estipitate, with inelastic placental bases. Seeds usually 4, compressed, orbicular, with hygroscopic hairs over whole surface or sometimes restricted to rim. x = 10 (polyploidy).
Species +/- 65, cosmopolitan in tropical and warm areas; 11 in sthn Afr., Namibia, Botswana, Swaziland and mainly northern and eastern provinces of South Africa.