CAMPANULA, or BELL-FLOWER, in botany, a genus of the pentandria monogynia class. The corolla is campaniform or bell-shaped, the bottom of which is closed with five valvulose nectaria; the stigma is trifid; and the capsule is below the flower, and opens at the sides. There are forty-one species of campanula, only nine of which are natives of Britain, viz. the rotundifolia, or lesser round-leaved bell flower; the patula, or field bell flower; the uniflora, or mountain bell flower; the rapunculus, or rampions; the latifolia, or giant throat-wort; the tracheluna, great throat-wort, or Canterbury bells; and the glomerata, lesser throat-wort, or Canterbury-bells.