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Erect annuals, (perennials, shrubs, or trees); indumentum variable. Leaves without basal marginal glands, gland-dotted beneath. Flowers in erect, terminal racemes; pedicels jointed near the apex. Sepals (free or) connate in the lower ⅓-½; tube above the insertion-point of each stamen with a semicircular thickening, next the insertion-points of the petals with a fimbriate corona, which passes also over the base of the petals. Petals obovate from a cuneate base, glabrous. Stamens inserted a little above the base of the calyx-tube; filaments glabrous; anthers with an emarginate or bifid base and an emarginate apex. Stigmas multifid. Capsule globose-ellipsoid. Seeds curved, reticulate-ribbed, with a unilateral aril.
Herbs [shrubs], hairs porrect-stellate and simple, seldom absent, glandular hairs absent [present]. Leaves petiolate or sessile, without nectaries; stipules reduced or absent. Inflorescences axillary; peduncle free; prophylls inconspicuous. Pedicels articulate. Flowers distylous [homostylous]; sepals 1/5–1/2 connate; petals yellow or whitish; corona inserted at throat on sepals and petals, annular, fimbriate; filaments often with nectaries; anthers dorsifixed. Capsules smooth [granulate/tuberculate]. Seeds straight [curved], reticulate; aril relatively narrow [wide]. x = 7.
Petals shortly clawed, inserted at the throat of the calyx-tube; corona of 10 free or connate, fimbriate or laciniate scales at the base of the petals.
Leaves with some impressed submarginal glands towards the base, sometimes glands also at the apex of the marginal teeth; stipules caducous or absent.
Seeds pyriform, straight or curved, with hard, reticulate-alveolate testa; aril crenate, lacerate or entire; cotyledons shorter than the radicle.
Stamens with the filaments usually glabrous, inserted nearly at the base of the calyx; anthers rarely apiculate or mucronate.
Flowers usually solitary and axillary, with the pedicel articulate at the apex of a 2–4-bracteolate free peduncle.
Annual or perennial herbs, shrubs or trees with simple or stellate hairs.
Ovary many-ovulate; styles with usually penicillate stigmas.
Capsule globose to elliptic, smooth or tubercled, 3-valved.
Sepals connate below the middle or free or nearly so.
