172 HORTUS GRAMINEUS WOBURNENSIS. 



greatest proportion of flowering culms, and that of the rich clayey 

 loam the least. 



From the above details it appears that this grass should have a 

 place in the composition of the best natural or permanent pastures, 

 though its proportion, as a constituent, should be much limited. 

 Flowers towards the end of June, and ripens the seed about the 

 second week of July. In dry or fluctuating soils the roots become 

 largely bulbous, and then constitute a troublesome weed. 



HOLCUS avenaceus, var. muticus. Awnless tall Oat-like Soft- 



Far. Flowers without awns. 



Obs. This variety is smaller in every respect than the pre- 



ceding ; leaves very short ; root slightly bulbous ; panicle 



much contracted ; glumes pencilled at the apex with purple. 



Flowers a week later than the awned variety ; in all other 



respects it is the same. 

 Native of Scotland. Curt. 

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



rich clayey loam is 



Produce per Acre. 

 dr. qr. Ibs. 



Grass, 18 oz. The produce per acre 12251 4 



80 dr. of grass weigh, when dry 28 1 



The produce of the space, ditto - 100 3i 5 



The weight lost by the produce of one acre in drying 7963 5 



64 dr. of grass afford of nutritive matter 32} 



The produce of the space, ditto 15 33 



The produce of latter-math is 



Grass, 5 oz. The produce per acre 3403 2 



64 dr. of grass afford of nutritive matter 10 53 2 12 



This variety is much later, in respect of producing herbage in the 

 spring, and in coming into flower, than the awned variety. It sel- 

 dom perfects any good seed. It appears to be much inferior in 

 point of produce, as the following comparison will manifest : 



Ibs. per Acre . 



Hokus avenaceus, var. aristatus, or awned variety, 

 affords of nutritive matter from the produce 

 of one acre, at the time of flowering - 664^ 

 The produce of latter-math affords of nutritive > 929 

 matter - - - - 265) 



