The British Cyclopaedia: Butea (Roxburgh).

The British Cyclopaedia
of the arts, sciences, history, geography, literature, natural history and biography; copiously illustrated by engravings on wood and steel by eminent artists.
Edited by Charles F. Partington, professor of mechanical philosphy, author of various works on natural and experimental philosophy, &c., assisted by authors of eminence in the various departments of science.
Complete in ten volumes.
Volume VI.
Natural history.
London: WM. S. Orr and Co., Amen Corner, Paternoster Row.
Named in honour of John, Earl of Bute, a great patron of botanists. It is a genus of three species of East Indian trees. They are decandrious, and belong to Leguminosae. Generic character: calyx bell-shaped, with five teeth; vexillum lance-shaped, and somewhat reflexed; pod on a footstalk, smoothly compressed, membranaceous, not bursting, having one seed at the point; seed large and flat. These trees, like almost all the order to which they belong, bear splendid flowers, and are also useful to man. From B. frondosa is obtained the gum lac of commerce. Infusions of the flowers, impregnated with a solution of alum, or of alum and tartar, dye cotton cloth of a beautiful yellow colour.

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