CONVALLARIA, or LILY of the VALLEY, in botany, a genus of the monogynia order, belonging to the hexandria class of plants; and in the natural method ranking under Sarmentaceæ, or 11th order. The corolla is sexfid; the berry spotted and trilocular. The species are eight, three of which are natives of Britain, viz. the marialis, or may-lily; the multiflora, or solomon's-feal; and the polygonatum, or sweet-smelling solomon's-feal. They are plants of considerable beauty, and may easily be propagated by their creeping roots.