TIORTUS GRAMINEUS WOB UR N F.NSIS. 271 



opinion, that it is likely to be the best ^Tass for tbe dairy. 

 But the diminutive size of the plant renders its cultivation 

 unprofitable, compared with that of any other of the pasture 

 grasses; and besides, it is an annual, which, though it 

 continues to produce flowering culms during most part of the 

 year, nevertheless it is soon injured by frost, and often 

 killed by a continuance of dry weather. But the most 

 effectual remedy to destroy this grass when growing in 

 pitchings, and on gravel and sand walks, is by an applica- 

 tion of common salt, which, since the reduction of the duty 

 on this article, can be had at a price that will allow of its 

 application economically. The best manner of applying it is, 

 just after the pitchings or walks have been cleaned, to strew 

 the salt over the surface sufficiently thick to make each 

 particle of the salt touch another. This dressing will be 

 found to prevent the vegetation of the seeds or roots of the 

 grass. It will also be found to destroy worms and slugs. 



The poa annua flowers and ripens its seed throughout the 

 summer. 



AGROPYRUM rejjens. Creeping Wheat-grass, Couch, 

 Quitch, Dog's-grass, Quicks. 



Specific character: Calyxes five-flowered, awl-shaped, 

 many-nerved; florets acuminate; leaves flat; root 

 creeping. 



Obs. — Root perennial, powerfully creeping, jointed, coated ; 

 fibres downy; stems slender, upright, two feet high, but 

 acquire a much greater height when drawn up in 

 hedges; round, smooth, striated, having five or six 

 joints, which are frequently tinged with red ; leaves 

 spreading very much, smooth on the under surface, on 

 the upper and the margin rugged ; they are often 

 directed on one side; spike nearly upright, two or 

 three inches long, flat, composed of numerous spikelets,. 

 often more or less awned. 



Experiments. — At the time of flowering, the produce from 

 a clayey loam is 12,251 lbs. per acre. 



This species constitutes the principal of what is termed 



