cylindrical, 8-10 mm long, glabrous outside, hairy within below the middle, the lobes 5, ovate, somewhat obtuse, reflexed; stamens 5, the anthers linear, exsert-ed, the filaments slender, attached at the mouth; style slender, about the same length as the corolla tube. Fruits subglobose or oblong, ca. 5 mm in diam., sulcate, glabrous, the persistent calyx umbilicate.