Calyx-tube campanulate or oblong in flower, globular in fruit; limb 5-partite, persistent; lobes enlarged, more or less oval or oblong, longer than the tube, subfoliaceous. Corolla salver-shaped; tube slender silky outside; throat densely bearded; limb spreading, unequally 5–6-lobed, large, imbricated in æstivation. Stamens 5–6, inserted on the throat of the corolla, included; anthers linear; filaments short. Disk small, tumid. Ovary 2-celled; style rather slender; branches 2, shortly linear; cells many-ovuled. Fruit dry, indehiscent, many-seeded. Seeds small, roundly angular; testa pale, crustaceous, foveolate; albumen fleshy; embryo clavate. —An endemic genus, consisting of erect or decumbent shrubs with opposite shortly petiolate leaves, small subulate or larger and ovate stipules, and rather large white flowers, solitary, few, or many together in terminal and lateral cymes.