No. 3. Agricultural Botany. 77 



Kentucky; but not of other districts. This is decidedly the most valuable of all our 

 pasture grasses; and comes in, ppontaneously, in all our rich, calcareous soils. 



28. P Trivialis, L. Rough-stalked Meadow Grass. Frequent in moist meadows 



and pastures. It closely resembles the preceding species, and is a valuable grass; 

 but not so valuable as that other. 



29. P CoMPREssA, L. Flat-stalked Meadow Grass: Blue Grass. Sometimes called 



Wire Grass. Not so much esteemed as the two preceding species; but in good land 

 it affords a valuable, nutritious pasture. It is sometimes rather troublesome in culti- 

 vated grounds. There are several other species of Poa on our farms, but greatly 

 inferior in value to these, and some of them quite worthless. The P. Pimgens, 

 which has been spoken of in the journals of late, is mostly a woodland species, and 

 not valuable. 



30. Dactylis Glomerata, L. Orchard Grass. A valuable grass, — more so for pasture 



than for hay ; and often cultivated. 



31. Eleusine Indica, Lam. Dog's-tail Grass. Very common in lanes and wood-yards. 



Cattle and hogs are fond of it. 



32. Secale Cereale, L. Common Rye. Much cultivated in some districts. 



33. HoRDEUM Vulgare, L. Four-rowed Barley. Much cultivated. 



34. H DisTicHUM, L. Two-rowed Barley. Ditto. 



35. Triticum Sativum, L. Wheal. Universally cultivated ; and several varieties, both 



awned and awnless, have been successively preferred. 



36. T Repens, Z/. Couch Grass. In Virginia called Wire Grass. A grass of some 



value; but so difficult to subdue, that it is considered a pest where it abounds. It ia 

 rare in Chester county. 



37. LoLiuM Perenne, L. Ray Grass, or Rtje Grass. Often found in our meadows, 



and sometimes cultivated. It is a grass of considerable value ; but not much attended 

 to in this country. 



38. Andropogon Nutans, L. Wood Grass : Indian Grass. A worthless grass, often 



abundant in poor, neglected old fields. There are two or three other species, equally 

 worthless, often to be met with. 



39. Sorghum Saccharatum, Pers. Broom Corn. Well known, and much cultivated. 



Two or three other species occasionally cultivated. 



40. HoLcus Lanatus, L. Feather Grass: White Timothy. A grass of indifferent 



quality ; frequent in meadows. 



41. Leersia Oryzoides, L. Cut Grass : Wild Rice. A worthless grass ; often rather 



troublesome along swampy rivulets. 



42. Zea Mays, L. Indian Corn. Cultivated by every body. 



43. Tripsacum Dactyloides, L. Gama Grass: Sesame Grass. A stout, coarse grass, 



which has attracted some notice in the west; but is probably unworthy of culture. 

 It is but little known in Chester county. The 33 grasses, here enumerated, are 

 perhaps the best known in this region. About 20 of them may be ranked among 

 the valuable plants (some 12 or 13 being more or less cultivated); and the residue 

 are regarded rather as weeds. 



44. DiPSAcus Sylvestris, L. IVild Teasel. A coarse, biennial weed ; quite worthless, 



and rather a nuisance in some neighbourhoods. 



45. Plantago ]Major, L. Common, or broad-leaved Plantain. A well-known, worthless 



weed, in lots, and about houses. 



46. P Lakceolata, Z(. English Plantain: Buck'' s-horn Plantain : Ripple Grass. 



Cattle feed upon this species, and it has been sometimes cultivated for a sheep pas- 

 ture ; but our farmers dislike it — especially on account of its seeds mingling with 

 those of red clover, and reducing the value of the latter. 



47. Symplocarpus Fcetida, Nutt. Skunk Cabbage. A frequent nuisance in swampy 



meadows. 



48. LiTHosPERMUM Arvense, L. Stone Weed. A worthless weed ; frequent in pastures. 



49. EcHiuM Vulgare, L. Blue Weed: Blue Devils. A highly pernicious weed; fre- 



quent in Maryland ; but rare, as yet, in Chester county. 



50. Echinospermum Viroinicum, Lehm. Beggar's Lice. A frequent weed in pastures, 



and along fence-rows ; the burr-like fruit often matting the fleeces of sheep, and 

 manes of horses. 



51. Convolvulus Arvensis, L. Bind Weed. A worthless vine, introduced into some 



cultivated grounds, and exceedingly difficult to eradicate. 



52. C Batatas, L. Sweet Potato. A well-known esculent ; often cultivated here, 



but still more in New Jersey, and in the South. 



