HORTUS GRAMINEUS WOBUHNENSIS. 209 



Produce per Acre. 



Ibs. 



The weight lost by the produce of one acre in drying 3743 7 

 64 dr. of grass afford of nutritive matter 60 gr. 7 

 The produce of the space, ditto 150 3 



The weight of nutritive matter which is lost by leaving 

 the crop till the seed be ripe exceeds one-fourth part 

 of its value, and is 70 14 6 



The proportional value which the grass at the time of flowering 

 bears to that at the time the seed is ripe, is as 4 to 3. 



The produce of latter-math is 



Grass, 3 oz. The produce per acre 2041 14 



64 dr. of grass afford of nutritive matter 1 dr. 31 14 7 



The above facts shew this grass to be one of the inferior species 

 with respect to produce, nutritive qualities, and reproductive 

 powers. In Germany It grows wild on hilly grounds, downs, and 

 by the margin of woods ; it may be ranked with the glaucous and 

 sea-green meadow grasses ( Poaglauca et Poa c&sia). Among the 

 grasses not natives of Great Britain, that have been brought under 

 observation in the course of these details, two species only have 

 offered proofs of fitness for the purpose of permanent pasture, on 

 soils of the best quality ; nerved meadow-grass (Poa nervata), and 

 fertile meadow-grass (Poa fertilis); the superior merits of these 

 over many other grasses have already been considered. 



It flowers in the third week of June, and the seed is ripe about 

 the second week of July. 



VICIA septum. Bush Vetch. 



Specific character' : Legumes pedicelled, mostly four together, 

 erect, smooth ; leaflets ovate, obtuse, the outer ones smaller. 

 Hort. Gram. Wob. Fol. 103. 



Obs. Stems climbing by tendrils, from one to two feet high, 

 according to its place of growth, grooved. Leaves many 

 paired, terminated by a branching tendril. Leaflets ovate, 

 obtuse, sometimes emarginate, somewhat hairy, the outer 

 ones gradually smaller. Flowers commonly in fours, on very 

 short pedicles, all directed one way, dark blue, purple. 

 Legume or pod nearly erect, brown, dotted, smooth. Seeds 

 globular, even. Flo. Brit.; E. Bot. 1515; Flo. Dan. 699; 

 Wither. Arr. ed. 4, p. 623 ; Bath Soc. Pap. v. ii. p. 49. 



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