in botany, a genus of the icosandra polygynia clas. The calyx consists of five segments, and the corolla of five petals; and the berry has many seeds. There are 13 species, five of them natives of Britain, viz., the idaeus, or raspberry-bush, the cerasus, or small bramble; the fruticosus, or common bramble; the saxatilis, or stone-bramble; and the chamomorus, or cloud-berries.