329. COCHLEARIA Coronopus. SWINES-CRESS.--This is an excellent diuretic, safe and yet very powerful. The juice may be taken; and it is good for the jaundice, and against all inward obstructions, and against the scurvy: the leaves may also be eaten as sallet, or dried and given in decoction.--Hill's Hebal, p. 105. 330. CONVALLARIA Polygonatum. SOLOMON'S SEAL. The Root.--The root has several joints, with some flat circular depressions, supposed to resemble the stamp of a seal. It has a sweetish mucilaginous taste. As to its virtues, practitioners do not now expect any considerable ones from it, and pay very little regard to the vulnerary qualities which it was formerly celebrated for. It is used by pugilists to remove the black appearance occasioned from extravasated blood, and for curing bruises on the face, particularly black-eyes obtained by boxing. 331. CONVALLARIA majalis. MAY LILY. The Roots and Flowers.--The roots of this abound with a soft mucilage, and hence they have been used externally in emollient and maturating cataplasms: they were an ingredient in the suppurating cataplasm of the Edinburgh Pharmacopoeia. Those of the wild plant are very bitter: dried, they are said to prove a gentle errhine; as also are the flowers. 332. CONVOLVULUS sepium. BIND-WEED.--The poor people use the root of this plant fresh gathered and boiled in ale as a cathartic; and it is found generally to answer that purpose. It would, however, nauseate a delicate stomach; but for people of strong constitutions there is not a better medicine. 333. CUSCUTA europaea. DODDER. The whole plant gathered green is to be boiled in water with a little ginger and allspice, and this decoction operates as a cathartic; it also opens obstructions of the liver, and is good in the jaundice and many other disorders arising from the like cause.--Hill's Herbal. 334. CYNOGLOSSUM officinale. HOUNDS-TONGUE. The Root.--The virtues of this root are very doubtful: it is generally supposed to be narcotic, and by some to be virulently so: others declare that it has no virtue of this kind, and look upon it as a mere glutinous astringent. 335. CYPERUS longus. LONG CYPERUS. The Root.--This is long, slender, crooked, and full of knots: outwardly of a dark-brown or blackish colour, inwardly whitish; of an aromatic smell, and an agreeable warm taste: both the taste and smell are improved by moderate exsiccation. Cyperus is accounted a good stomachic and carminative, but is at present very little regarded. 336. DICTAMNUS albus. WHITE or BASTARD DITTANY. The Root.--The cortical part of the root, dried and rolled up into quills, is sometimes brought to us. This is of a white colour, a weak, not very agreeable smell; and a durable bitter, lightly pungent taste. It is recommended as an alexipharmic. 337. EQUISETUM palustre. HORSE-TAIL. The Herb.--It is said to be a very strong astringent: it has indeed a manifest astringency, but in a very low degree.