Gibsoniothamnus L.O.Williams

sometimes tuberculate. Leaves opposite, sometimes unequal, simple, entire, often coriaceous, pinnately 3-4 nerved on each side, the nerves well spaced, arcuate; petioles mostly short, not forming stipular ridges. Inflorescences terminal cymose racemes or panicles, often condensed and fasciculate, sometimes reduced to a few flowers, the peduncles mostly elongate, bracteate. Flowers showy, the calyx brightly colored, merging into the pedicel, cupular, 5-dentate, the teeth some-times ventrally conduplicate, the sinuses then appearing truncate and mem-branaceous; corolla tubular, 5-lobed, the lobes short, rotund, quincuncial, bearded within near the point of the stamen insertion; stamens 4 in 2 pairs, the filaments bearded at the point of insertion, the anthers basally divaricate, with a broad, differentiated connective, dehiscing longitudinally, situated below the corolla mouth; disc apparently wanting; ovary 2-locular, the placenta median, many ovulate, the style glabrous, the stigma a terminal annulus, not bilobate. Fruit a juicy or mucilaginous berry; seeds numerous, prismatic, minutely ciliate with a gelatinous slimy covering, the endosperm extremely scant or wanting; embryo straight, cylindrical, the appressed cotyledons forming about 1/2 its length.