Reed, or Arundo, L. a genus of plants, comprising ten species ; five being natives of Britain ; of which the following are the principal, namely :

1. The arenaria (Calamagrostis arenaria of Dr. Withering) or Sea-Reed.—See Matweed.

2. The phragmites, or Com-mon Reed, grows in rivers, lakes, ditches, and fenny or marshy situations, to the height of seven or eight feet : it is perennial, and flowers in the month of July.-This species is employed for cover-ing cottages and barns ; for which purpose it is superior to every other enous vegetable, being incom-parably more neat and durable By previously soaking the reeds.-, in strong alum -water, such a roff may be rendered flre-proof. They are also manufactured into screens, for sheltering young plants from the cold winds; and may be use-fully employed for cane-bottomed chairs. Farther, the Common Reed makes excellent weaovers' combs, and is generally nailed across the frame of wood-work, to serve as the foundation for plastered walls, pillars, etc.-From the dried roots of this plant, a very nutritive flour is easily obtained, which may be convened into wholesome and pa-latable head. Its panicles are used, in Sweden, to impart a green colour to wool.

3. The epigeios, (calamagrostis epigeios of Withering) or Wood Reed, is perennial, grows in shady ditches , and moist situations, where. it flowers in July.- This herb abounds particularly in the Isle of Ely, and is called by the inhabitants of the fens, Maiden-Hair :- it is manufactured into hassocks, or thick mats, for churches.

4. The calamagrostis (laneeo-lata of Dr. Withering) Small. or Hedge-Reed, is likewise perennial ; tennial. grows in moist shady hedges, ami meadows: where it flowers in the month of July. This species; is remarkable for its beau-ty, and is an ornament to ditch-banks and hedges : it is rejected by cattle.- Prof. Pallas observes, that the panicles of the Small Reed, before the flower expands, impart a beautiful bright-green colour to wool, when boiled, with the addition of alum.