280 HOIITUS GRAMINEUS WOBURNENSIS. 



before the time of flowering, is of a fine glossy purple colour; 



the blossom is woolly at the base ; awn knee-bent, half as 



long as the blossom; calyx generally 2-flowered, rarely 3; 



the inferior floret sitting. Flo. Ger. 257; Wither. Arr. ; 



E. Bot. 1453; Host. t. 42; Flo. Dan. 240.; Hort. Gram. 



Fol. 157. 



German, Geschlangette-Schmielen. 

 Native of Britain. Root fibrous, perennial. 

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



heath soil incumbent on clay is 



Produce per Acre, 

 dr. qr. Ibs. 



Grass, 15 oz. The produce per acre - 10209 6 



80 dr. of grass weigh, when dry 26 7 



The produce of the space, ditto - 78 3 



The weightiest by the produce of one acre in drying 6891 5 4 



64 dr. of grass afford of nutritive matter 20^ 



The produce of the space, ditto 723 



At the time the seed is ripe, the produce is 

 Grass, 14 oz. The produce per acre 9528 12 



80 dr. of grass weigh, when dry - 30 ") 



The produce of the space, ditto - 84 3 



The weight lost by the produce of one acre in drying 5955 8 

 64 dr. of grass afford of nutritive matter 20^ 

 The produce of the space, ditto - 7 $ 



The produce of latter-math is 



Grass, 4 oz. The produce per acre - 2722 8 



64 dr. of grass afford of nutritive matter 13 74 7 



The weight of nutritive matter which is lost by leaving 



the crop till the seed be ripe, is - 21 4 5 



The proportional value in which the grass, at the time of flower- 

 ing, exceeds that of the latter-math, is as 8 to 7. 



Two spaces of a heath soil and a clayey loam were sown with 

 the seedof this grass on the 20th of May, 1812; the seed vege- 

 tated well, and the. produce was collected in the month of August 

 following. It consisted of 



Grains. 

 From the heath soil, grass 4 oz., which afforded of nutritive 



matter - - - - 60 



From the clayey loam, grass 2 oz., which, in proportion, 

 afforded of nutritive matter - - - - 56 



