200 .HORTUS GRAMINEUS WOBURNENS1S. 



Produce per Acre, 

 dr. qr. Ibs. 



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 40 7 



The produce of the space, ditto - 112 3 

 The weight lost by the produce of one acre in drying 4764 6 

 64 dr. of grass afford of nutritive matter 33) 

 The produce of the space, ditto 13 J ' J 



The above details shew that this species of meadow cat's-tail 

 is much inferior even to the lesser variety of the Phleum pratense. 

 It is a very scarce grass, at least as far as my researches have ex- 

 tended, having found it but in one meadow in a wild state. It 

 grows in a clayey soil near a spring in Woburn-park, from which 

 the annexed specimen was propagated. Hares and rabbits neg- 

 lected this grass for the common cotton-grass (Eriophorum 

 angustifolium) , which grew closely adjoining. 



It flowers in the second week of July, and ripens the seed in the 

 end of the same month : but the seed is seldom good. 



CYNOSURUS erucaformis. Linear-spiked Dog's-tail Grass. 



Specific character : Spike compound ; spikelets scattered, the 

 fruit-bearing ones erect ; calices 1 and 2-flowered ; husks 

 obtuse, boat-shaped ; keel obtuse ; corollas acuminate. 



Obs. This grass is marked an annual in botanical works, but 

 it is strictly perennial. Before the time of flowering the 

 spikelets are beautifully tinged with crimson on the sides ; it 

 deserves a place in the flower-garden, on account of the sin- 

 gularity and beauty of the spike. 



Native of Germany, Russia, and Hudson's Bay. Root fibrous. 

 Perennial. Hort. Kew. ; Host. t. 6. Beckmannia eruccz- 

 formis. 



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

 clayey loam is 



Produce per Acre, 

 dr. qr. Ibs. 



Grass, 10 oz. The produce per acre - 6806 4 



80 dr. of grass weigh, when dry - 34 7 



> OftQO in Q 



The produce of the space, ditto 68 5 



The weight lost by the produce of one acre in drying 3903 9 8 



