« 



7H 



different species that grew around it, remained in a healthy state; but were all inferior, and 

 more or less injured by the severity of the weather. In the following season, the produce 

 rather exceeded the above, though it had been mown the preceding season, and no manure 

 had been applied. It is a native of North America, where the winters are longer or more 

 severe, and the summers warmer than in this climate ; and the plants, natives of Siberia, exhi- 

 bit 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 

 duced; 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 farther 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. 



pro 



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



r 



Poa CtJBsia, Sea-green Meadow-grass. 



Specific character: Panicle spreading; spikets 5-flowered, husks spear-shaped, sUky-edged, 



unconnected with any web, sheath-scale short and blunt. 

 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 he very 



different from the Poa glauca in the Flora Danica, that approaches nearer to the Poa 



ralis. (Dr. Smith). E. Bot. iyiQ. 

 Native of Scotland. Root fibrous. Perennial. 

 Ewperiments. — At the time of flowering, the produce from a brown loam, is. 



nemo- 



dr. 



qr. 



oz. 



34 

 - 68 



108900 

 46282 8 



3867 9 



\ 



Grass, 10 oz. The produce per acre 



80 dr. of grass weigh, when dry 



The produce of the space, ditto 



The weight lost by the produce of one acre in drying 



64 dr. of grass afford of nutritive matter - % 



The produce of the space, ditto - " . _ 5 



At the time the seed is ripe, the produce is, 

 Grass, 7oz. the produce per acre 

 80 dr. of grass weigh, when dry 

 The produce of the space, ditto 

 The weight lost by the produce of one acre in drying 

 64 dr. of grass afford of nutritive matter - 3 



The produce of the space, ditto - ' - 5 



The weight of nutritive matter, in which the produce of onp n.. *..!,.■ c a • ^ 



, , , . F'uuute or one acre, at the time of flowermg,> 



. . . > 



lbs, 



6806 4 



2892 10 



3913 10 



241 11 9 



76230 = 4764 6 



40 

 5Q 



38115 



3 



3 



3573 4 



223 5 4 



exceeds that at the time the seed is ripe, is, 



18 6 5 



