6380 13 12 



HOllTUS GllAMINEUS WOBUKNENSIS. 219 



Produce per Acre, 

 dr. qr. lbs. 



Grass, 30 oz. The produce per acre is - 20418 12 



80 dr. of grass weigh, when dry - 25 ^ 



The produce of the space, ditto - 150 S 



The weight lost by the produce of one acre in drying 14037 14 4 



64 dr. of grass afford of nutritive matter 2 1 ^ 



The produce of the space, ditto - 16 3^ S 



The produce of latter-math at two different cuttings is^ — 

 Grass, 28 oz. The produce per acre - 19057 8 



64 dr. of grass afford of nutritive matter 2 17 ^^g -.r ir. 

 The produce of the space, ditto - 15 3 5 



The weight of nutritive matter contained in the latter-math 

 herbage is equal to that afforded by the flowering herbage. The 

 plant, as it passes this stage of growth, becomes woody, particu- 

 larly at the bottom of the stalks. It pushes forth flowering-stems 

 during all the summer and autumn, if never suffered to perfect its 

 seed. It withstands the effects of severe dry weather better than 

 most pasture plants; continuing to flower, even when the surround- 

 ing herbage is burnt up on strong loamy soils. The white clover 

 (Trifoliiim repens), and the hop clover {TrifoUum procumbens), are, 

 at least so far as my observations have extended, the only plants 

 beside that retain verdure and powers of growth under such cir- 

 cumstances. There were favourable opportunities, during the 

 long-continued season of dry weather in this year (1815), to ob- 

 serve the powers of different grasses and plants to resist the effects 

 of drought : there were no plants on ancient pasture land, on lighter 

 soils, or on clays, that appeared so little affected by it as those I 

 liave mentioned. The common quaking-grass {Briza media), was 

 to all appearance completely dried up, while on a sandy soil, a rich 

 black loam, and a strong clayey soil, the fine bent-grass {Agrostis 

 capiUaris), and the different varieties of the stoloniferous bent- 

 grass or florin, were, with respect to foliage, in the same state as 

 the quaking-grass. This property, therefore, gives additional 

 value to the perennial red clover. 



On a comparison of the produce and nutritive qualities of the 

 broad-leaved clover {Trijulinm pratense) with those of the above, 

 the broad-leaved clover is found to be greatly superior. 



The broad-leaved cultivated clover (TriJ'oliurii pratense), 



