The Botanist's Companion, Volume II / Or an Introduction to the Knowledge of Practical Botany, and the Uses of Plants. Either Growing Wild in Great Britain, or Cultivated for the Puroses of Agriculture, Medicine, Rural Oeconomy, or the Arts

by William Salisbury

559. CARTHAMUS tinctorius. SAFFLOWER.—The radius of the corolla, prepared with an acid, affords a fine rose-coloured tint.

560. CENTAUREA Cyanus. BLUE-BOTTLE.—The juice of the corolla gives out a fine blue colour.

561. COMARUM palustre. MARSH-CINQUEFOIL.—The dried root forms a red pigment. It is also used to dye woollens of a red colour.

562. CUSCUTA europaea. DODDER.—The herb gives out a lightish red.

563. CRATAEGUS Oxycantha. HAWTHORN.—The bark of this plant, with copperas, is used by the Highlanders to dye black.

564. DATISCA cannabina. BASTARD-HEMP.—This produces a yellow; but is not easily fixed, therefore it presently fades to a light tinge.

565. DELPHINIUM Consolida. BRANCHING LARKSPUR.—The petals bruised yield a fine blue pigment, and with alum make a permanent blue ink.

566. FRAXINUS excelsior. MANNA.—The bark immersed in water gives a blue colour.

567. GALIUM boreale. CROSS-LEAVED BEDSTRAW.—The roots yield a beautiful red, if treated as madder.

568. GALIUM verum. YELLOW BEDSTRAW.—The flowers treated with alum produce a fine yellow on woollen. The roots, a good red.