280 HORTUS CxRAMINEUS 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. 167. 

 German, Geschlangelte-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. lbs. 



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



80 dr. of grass weigh, when dry - ^^^13318 012 



The produce of the space, ditto - 78 3 



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

 64 dr. of grass afford of nutritive matter 2 07 oig nii 

 The produce of the space, ditto - 7 2 3 



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 7 3573 4 g 

 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 2 7 ^07 i o « 

 The produce of the space, ditto - 7 3 



The produce of the 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 seeds of 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 



