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SECT. XI.—PLANTS USEFUL IN DYEING.

553. BETULA Alnus. Aider. —The bark affords a brown colour;which with the addition of copperas becomes a black.

554. CALENDULA officinalis. Common Marigold. —The radius ofthe corolla, if bruised, affords a fine orange. The corolla dried andreduced to powder will also afford a yellow pigment.

5.^5. CALTHA palustris. Marsh-Marigold. — The juice of thecorolla, with alum, gives a yellow.

556. CAMPANULA rohmdifolia. Round-leaved Bnr- Flower. —A blue pigment is made from the corolla; with the addition of alumit produces a green colour.

557. CARPINUS Beluhs. Hornbeam.— The bark, a yellow.

558. CH.EROPHYLLUM sylvesire. Cow-Parsley. — The umbelsproduce a yellow colour, and the juice of the other parts of the planta beautiful green.

559. CARTHAMUS linctorius. Saffi.ower.— The radius of the co-rolla, prepared with an acid, affords a fine rose-coloured tint.

560. CENTAUREA Cyam/s. Blue-Bottle.— The juice of the co-rolla give, out a fine blue colour.

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

552. CUSCUTA europcea. Dodder.— The herb gives out a lightishred.

553. 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 yel-low ;--but it is not easily fixed, therefore it presently fades, to a lighttinge.

555. DELPHINIUM Consolida. Branching Larkspur. —The petalsbruised yield a fine blue pigment, and with alum make a permanentblue ink.

566. FRAXINUS excelsior. Manna. —The bark immersed in wate rgives a blue colour.

5G7. GALIUM loreale. Cross-leaved Bedstraw.— The roots yielda beautiful red, if treated as madder.