VIORTL'S GUAMINEUS WOlUi R N K N S 1 S. 211 



awned, largely ciliate at the edges; inner two-ribbed, 

 slightly ciliate on the ribs. 



Native of Barbary. Root annual. 



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

 a light siliceous sandy soil is 8,167 lbs. per acre. 



If this annual fescue be compared with the soft brome- 

 grass, many-flowered brome-grass, and others of the annual 

 indigenous grasses, it will be found inferior. The leaves 

 attain to a considerable length, and contain more nutritive 

 matter than those of any other annual grasses that have 

 been submitted to experiment here ; the culms, however, 

 contain much less nutritive matter than those of most other 

 annuals. It ripens the seed in sufficient quantity, aflfects 

 most a light rich soil, and is strictly annual. The best time 

 for sowing the seed is in the beginning of May. 



It flowers about the end of July, and the seed is ripe in 

 the beginning of September. 



CYNOSURUS echinatus. Rough Dog's-tail Grass. 



Specific character : Spike compound, ovate ; neuter spike- 

 lets awned ; awns of the corolla full as long as the 

 glume. 



Native of Britain. Root annual. 



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

 a sandy loam is 5,445 lbs. per acre. 



This grass is not common ; it is found in a wild state near 

 Sandwich, and in the Isle of Jersey, on a sandy soil. It is 

 also a native of Germany, growing in pastures, corn-fields, 

 and on sands by the sea-side. Like the preceding grass, 

 this one is evidently of more use in showing the diversity of 

 form that gives specific characters to the individuals com- 

 posing a genera, than to any agricultural purpose to which 

 it can be made subservient ; as the above results of experi- 

 ments made upon it, put every idea of that nature out of the 

 question. 



Flowers about the end of June, and the seed is ripe in 

 August. 



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