NATURAL HISTORY. Ill 



the first. Wild rice grass is sometimes cultivated and yields 

 large crops at the South, and floating foxtail in Europe. 



III. Marsh or Salt Grasses, among which we have 

 Salt Reed Grass, (^spartina polystachya.^ 

 Rush Salt Grass, (^spartina juncea.') 

 Salt Marsh Grass, (^spartina stricta.') 

 Black Grass, (^juncus bidbosus.^ 

 Beach Grass, (ammophila arundinacea.^ 

 Goose Grass, (^poa maritima.') 



lY. Field or Pasture Grasses. Under this head may be 

 included a very large number of species, all of which have 

 been described above. These grasses might be subdivided 

 according to the soils and situations which they naturally 

 affect ; for though a grass may sometimes be found or 

 placed in a soil which is not naturally fitted for it, yet no 

 species will arrive at its most perfect development on a soil not 

 well adapted to it. 



Among these might be mentioned as examples 



Timothy, (^phleuni pratense.^ 



Meadow Foxtail, (alopecurus pratensis.^ 



Common Spear Grass, (^poa pratensis.') 



Orchard Grass, (dactylis ^lomerata.^ 



Perennial Rye Grass, (lolium pereniie.') 



Italian Rye Grass, (lolium italicum.^ 



Redtop, (agrostis vulgaris.') 



"Whitetop, (agrostis alba.) 



Downy Oat Grass, (avena pubescens.) 



MeadoWjSoft Grass, (Jiolcus lanatus.) 



Meadow Fescue, (festuca pratensis.) 



Field Barley Grass, (Jiordeum pratense.) 



Tall Oat Grass, (arrhenatheruvi avenaceum.) 



Y. Annual Weeds, which, though proper grasses; are often 

 very troublesome in cultivated grounds, either on account of 

 their creeping, underground stems, or their rapid and luxuriant 

 growth. Thrifty farming is a ceaseless struggle against tliese 

 pests, and the farmer is generally careful to keep as clear as 

 possible of them. Among these may be named 



