192 HQRTUS GRAMINEUS WOBURNENSIS. 



severe, and the summers warmer than in this climate ; and the 

 plants, natives of Siberia, exhibit a similar habit, for the severer 

 the winter, the greater is their produce ; and the milder the 

 winter, their produce is comparatively less. The long-rooted 

 clover is one of this class : after a severe winter the produce is 

 very great, but after a mild winter the produce is considerably 

 inferior. 



The nerved meadow-grass affects most soils, but not such 

 as are tenacious. The seed does not vegetate so readily as might 

 be presumed from the plentiful manner in which it is produced ; 

 nor does the plant attain to maturity so soon as many other 

 grasses that have equal merits in other respects. The above 

 facts do not offer sufficient grounds to recommend the nerved 

 meadow-grass strongly, for the purposes of the Agriculturist; 

 nor go the full length to discourage further attempts to cultivate 

 it to more advantage, as it is a foreign plant, and its defects may 

 probably be lessened by frequently raising it from seed ripened 

 in this climate. 



Farther experience in the cultivation of this grass enables me 

 to state, that it possesses very valuable properties, and that it 

 will be found a valuable ingredient in permanent pastures, where 

 the soil is not too dry, but of a medium quality as to moisture 

 and dryness. 



It flowers in the third week of June, and the seed is ripe in the 

 last week of July. 



POA glauca c&sia. Sea-green Meadow-grass. 



Specific character: Spikelets ovate. Florets from two to five, 

 obscurely five-ribbed, bluntish ; silky at the keel and lateral 

 ribs; hairy at the base, without a web. Stipulas of the 

 lower leaves very short and blunt. Sm. Engl. Fl. i. p. 128. 



Obs. Culms from six inches to a foot and a half, according 

 to the nature of the soil it grows in. The leaves are bluntish, 

 flat and smooth on the back next the base, but in other parts 

 rugged ; sheaths the length of the leaves, striated, somewhat 

 rugged. It seems to be very different from the Poa glauca 

 in the Flora Danica ; that approaches nearer to the Poa 

 nemoralis. (Sir James Edward Smith.) E. Bot. 1719. 

 Whole plant of a deep glaucous colour. 



Native of Scotland. Root fibrous. Perennial. 



