ENDOGENOUS PLANTS—INSIDE GROWERS SyMplocarptts fietidus. Swamp Cabbage, skunk weed, (p.) A worthless native weed in wet and swampy mea dows, readily known by its skuuklike odor when wounded. Saggittaria cariabilie. Arrow-head, (p.) A common native plant of no value, found in sluggish ditches and swampy meadows. The roots, or hase of stem, often pro duce large oval tubers in autumn, which tempt hogs to root for them, and thus disfigure the grounds on which they occnr.
ilnacharis Canadeusis. Water-reed. (p.) This slender aquatic is supposed to be indigenous in our sluggish streams, where it often abounds, and may possibly become troulatsome in our canals. It has heeu introdoced iuto England, where its presence impedes the navigation of the canals to a serious extent.
Smilaxrotundifol a. Green Brier, rough bindweed, (p.) This i. common in thickets, and a variety of it, S. Caduca,. (L.,) often abounds in poor, neglected old fields.
Ornithugalum umbellatum. Ten O'clock, (b.) This exotic from the gardens in many places multiplies its bulbs so rapidly as to alarm the farmer, if neglected. The bulbs are exceedingly tenacious of life, and when mice in possession of the soil, it is an almost task hopeless to get rid of them.
Alliumvineale. Field Garlic, crow garIc, (p.) Tradi tion says thia species was introduced by the first Welsh immigrants to Pennsylvania for the purpose of affording an early pasture, particularly for sheep. It was formerly so abundant in soine districts as to be quite an annoy ance, by imparting a disgusting flavor to milli and butter, and injuring the manufacture of wheat flour. By good farming and a judicious rotation of crops the evil hae been much abated.
Juncus effueis. Common or Soft Rush, (p.) There are numerous species of this worthless native weed, but this is the hest knovvn, and perhaps the most objectionable, as it has a constant tendency to form unsightly hunchee, or tussocks, iu moist low grounds. Mr. Elliott an eminent botanist, says that in South Carolina this Rush occupies and almost covers rice fields as soon as they are thrown ont of cultivation.
Cyperus phymatodes. Grass of Florida, (p.) This spe cies ia fort .natety somewhat rare, as yet, in the northern and middle States, but it is a great pest to the agneulture of the South.
Cyperus hydra. Coco grass, nut grass of South Caro lina, (p.) This is regarded by the southern planters as the most Intolerable pest of their agriculture. Mr. Elliott eays : It shoots from the base ofits stem a threadlike fiber, which descends perpendicularly eight to eighteen inches. and then produces a small tuber. From this horizontal fibers extend in every directioe, producing new tubers at intervals of six or eight inches; and these immediately shoot up etems to the surface of the earth, and throw out lateral fibers to Atm a new. progeny. This process is interminable, and it is clarions to see what a chain of net work of plants and tubers can, with some care, he dug up in a loose soil. The only process yet discovered by which this grass can be extirpated is to plow or hoe the spots in which it grows every day tin onghout the whole season. In their perpetual etforts to throw their leaves to the light the roots become exhausted and perish; or, if a few appear the next spring. they can easily be dug up.
Carex tentaculata. Many-beaked Sedge, (p.) A very common species, iu swampy low ground, of the large and unprofitable genus of sedges.
Carex stricla. Tussock Sedge, (p.) This is one of the most common, and most difficult to manage, of all our sedges. Its roots are apt to form large dense tufts or tusocks, in swamps. The careful farmers sometimes get rid of those tussocka by digging them out, and, when dry, collecting them in large heape, burning them, and using the ashes as a manure. Of tbis remarkable end very numerous genus, (Carex,) Dr. F. Boott, an accom plished botanist of London, has now in hand one of the noblest and most elaborately illustrated monographs ever. issned from the prese.