272 HORTUS GRAMINEUS WOBURNENSIS. 



Native of Britain. Root fibrous, perennial. 

 Experiments. At the time the seed is ripe, the produce from a 

 sandy loam is 



Produce per Acre, 

 dr. qr. Ibs. 



Grass, 9 oz. The produce per acre - - 6125 10 



80 dr. of grass weigh, when dry 34 7 0503 fi 4 



The produce of the space, ditto - 61 Of 3 



The weight lost by the produce of one acre in drying 3522 3 12 



64 dr. of grass afford of nutritive matter 2 2 7 



The produce of the space, ditto 5 21 i 



Of the awnless variety (A. v. canina, var. mutica), 



at the time the seed is ripe, the produce is 

 Grass, 21 oz. The produce per acre 14293 2 



80 dr. of grass weigh, when dry 24 7 



The produce of the space, ditto - 100 3i 



The weight lost by the produce of one acre in drying 10005 3 

 64 dr. of grass afford of nutritive matter 137 OQQ -10 o 

 The produce of the space, ditto - 9 0| 3 



The weight of nutritive matter in which the produce of one acre 

 of the awnless variety of Agrostis vulgaris canina exceeds that of 

 the awned variety is 151.8. 



Those results go to prove, that the comparative merits of the 

 Agrostis vulgaris exceed those of the Agrostis vulgaris canina nearly 

 as 2 to 1 . The crop of the awnless variety is greater than that of the 

 awned, but is much less nutritive, being as 10 to 7 : the spring and 

 autumn produce is likewise superior. Neither of these varieties 

 appears to be of much value to the Farmer. The rust attacks the 

 culms and leaves of both varieties, which gives the plants a dirty 

 brown appearance ; the Agrostis vulgaris is always free from this 

 disease. As this family of grasses has been held in little esteem 

 by Farmers, principally on account of their lateness of flowering, 

 it may be of use to bring them into one view, in the order of their 

 early produce of herbage in the spring. 



The apparent Nutr. 



difference of Time. Powers. 



dr. qr. 



Agrostis vulgaris mutica (common bent) middle of April 1 2J 

 A. palustris (marsh bent) - one week later 2 3 



A. stolonifera, var. latifoha (florin) - ditto - - 3 2 



