278 HORTUS GRAMINEUS WOBURNENSIS. 



It flowers about the second week of August, and ripens the 

 seed about the beginning of September. 



AGROSTIS canina fascicularis. Bundle-leaved Bent, Tufted 

 Bent. 



Variety with the leaves in dense bundles, and culms striking 

 root at the joints. 



Obs. The obscurities in the genus Agrostis have been cleared 

 away in the English Flora, where this grass is made a variety 

 of^Agrostis canina. It is mentioned in Mr. Curtis's enumera- 

 tion of British grasses, but without any specific description. 

 It seems nearly allied to the A. capillaris of Hudson. The 

 leaves are more obviously collected into bundles than in any 

 other species of bent. It seldom rises to more than five 

 inches in height : the leaves of a smaller variety are finer 

 than those of most other species of bent, and it has received 

 the name of tenuifolia. The shoots strike root at the joints 

 in moist situations ; in this it resembles the Agrostis stotoni- 

 fera. Hort. Gram. Fol. 155. Agrostis fascicularis. 



German, var. Gemeiner-Windhalm. 



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



sandy soil is 



Produce per Acre, 

 dr. qr. Ibs. 



Grass, 4 oz. The produce per acre 2722 8 



80 dr. of grass weigh, when dry 20 ) 



The produce of the space, ditto 16 5 



The weightiest by the produce of one acre in drying 2041 14 

 64 dr. of grass afford of nutritive matter 20) 

 The produce of the space, ditto 2 > 



At the time the seed is ripe, the produce is 

 Grass, 6 oz. The produce per acre - 4083 12 



80 dr. of grass weigh, when dry 28 "> 



The produce of the space, ditto 33 2| J 



The weight lost by the produce of one acre in drying 2654 7 

 64 dr. of grass afford of nutritive matter 33} 

 The produce of the space, ditto 5 2J > 



The produce of the latter-math is only 2 oz. ; a quantity so 

 trifling, as to preclude the necessity of any further notice. 



In old pastures, on light soils, this bent may be readily distin- 



