Poppy, the Horned, or Celandine, Chelidonium, L. a genus of plants consisting of six species, four of which are natives of Britain; the most remarkable of these are the following:

1. The majus, Greater or Common Celandine, grows under hedges; in rough shady places; on rubbish, and uncultivated ground : it flowers from May till July.—The herb is of a blueish-grecn colour, the root of' a deep red, and both contain a yellow juice: their smell is disagreeable, the taste somewhat bitter, very pungent or burning in the mouth; and the root is extremely acrid.

This juice, when diluted with milk, consumes white opaque spots upon the eyes, destroys warts, and cures the itch Dr. Withering is of opinion, that a medicine of 6uch activity will, at some future period, be converted to more im-. portant purposes.—Horses, cows, goats, and swine, refuse to eat this herb.

From the saffron-coloured juice of the Greater Celandine, no permanent colour. could be obtained in the experiments made by continental dyers; but, according to the assertion of Rossig, a reputable German author, the whole plant produced, by fermentation, a good blue-colour, similar to that obtained from Woad, or the Isatis tinc-toria, L. a fact well deserving the attention of dyers.

2. The corniculatum (Glaucium phaenicium of Dr. Smith), Red Horned-PoppY, or Red Celandine, is found in corn-fields, in the county of Norfolk: its reddish flowers appear in the months of July and August.—This species is cultivated in gardens for the beauty of its flowers ; but the whole plant is an acrid and narcotic poison.