OF THE COUNTY OF TYRONE. 71 



The Fefcue and Poa grafles are the mod numerous 

 in found foils, in which fituations the vernal grafs 

 is never wanting. In rich reclaimed bogs, both fpecies 

 of the white meadow grafs always flourish, though in 

 any foil, newly laid down, they profper for two or 

 three years ; but in dry fituations they foon give way 

 to the above, which, with the white clover, moft com- 

 monly compofe the principal mafs ; bat the latter is al- 

 moft peculiar to every fpot, which in general fupplies 

 all defects in the verdure of the furface, where clay is 

 at all concerned. 



According to the received fyftem, clover is not 

 ranked among the natural grafles ; but as many of them 

 fupply the place of the moft valuable grafles, at leaft 

 ib far as relates to pafture, I fliall here confider them 

 in the fame light, that farmers ufually do. 



A perennial clover, in England commonly called^ 

 cow-grafs, here known by the name of horfe-fham- 

 rock, is frequently met in detached tufts, in flrong 

 foils, and cold clays. This is a moft valuable plant, 

 and fpreads faft. Seeds-men frequently impofe the 

 feed of the red clover for this article, which they 

 may readily do, as, by barely infpecYmg the feeds of 

 both, they are not eafily diftinguifhed, at leaft by 

 common obfervers. In this county, in dry feafons, 

 the feed ripens very well ; a few ounces of it might be 

 foon collected, which in two or three feafons, by good 



management 



