"Spinous shrubs, spines long and straight, up to 3.5 cm, sometimes forked; branchlets grey-tomentose. Leaves opposite, to 5 x 2.5 cm, elliptic oblong, obtuse or acute at apex, slightly cuneate at base; lateral nerves about 8 pairs, the lowest pair oblique and arched to meet the rest. Cymes shortly peduncled. Flowers white. Calyx-lobes ovate, villous. Corolla small, tube cylindrica Stamens 5, on the corolla-tube, included; anthers lanceolate. Ovary 2-celled; ovules 1-4 in each cell, rarely more; style filiform; stigma fusiform or columnar, minutely 2-fid. Berry globose, black-purple; seeds 4."
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