HYDROCHARIS, the LITTLE WATER-LILY: A genus of the annecardia order, belonging to the diœcia class of plants; and in the natural method ranking under the first order, Palme. The spatha of the male is diphyllous; the calyx trifid; the corolla tripetalous; the three interior filaments styliferous. The female calyx trifid; the corolla tripetalous; the styles six; the capsule has six cells, and is polyspermous inferior. There is only one species, a native of Britain, growing in flow streams and wet ditches. It hath kidney-shaped leaves, thick, smooth, and of a brownish green colour, with white blossoms. There is a variety with double flowers of a very sweet smell.