Duosperma

Shrublets or shrubs, +/- hairy. Leaves entire, crenate or toothed. Inflorescence axillary, dichasial cymes; bracts +/- as long as calyx; bracteoles similar. Calyx regular, glandular, hairy; lobes 5, ovate, with posticous ones larger than others; tube shorter than lobes. Corolla +/- 2-lipped; upper lip 3-lobed, transversely ribbed on palate and with stiff, reflexed hairs, rugula indistinct; lower lip 2-lobed; all lobes retuse; aestivation contorted; tube cylindric below, narrowly campanulate above, longer than lobes. Androecium: fertile stamens 4, didynamous; filaments arising in pairs in throat of corolla, slightly exserted, linear; anthers 2-thecous; thecae parallel, muticous; staminodes 0. Pollen prolate, 3-porate, with pseudocolpi; pore lipped; surface reticulate. Disc annular. Gynoecium: ovary with 1 or 2 ovules in each locule; style subterete, exserted, sparsely hairy; style branches 1 or 2; ventral lobe more developed, cylindriform. Capsule 2-seeded, obovoid-ellipsoid, much flattened, woody, shiny brown, estipitate, with inelastic placental bases. Seeds discoid, with hygroscopic hairs over whole surface.