351 
XII. Festuca glauca, Curtis. 
Glaucous fescue-grass. Nat. of Britain. 
At the time the seed is ripe, the produce from a brown 
loam is 
oz. 
Grass, 14 oz. The produce per acre - 152460 
80 dr. of grass weigh when dry - 32 dr. ^ 2 
The produce of the space, ditto - 89.2 1632 J 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 1.2 dr. ) 
The produce of the space, ditto 5. 1 J 
or lbs. per acre. 
0 = 9528 12 O 
0 = 3811 8 0 
- 5717 4 0 
4 = 223 5 4 
At the time of flowering, the produce is 
Grass, 14 oz. The produce per acre - 152460 0 = 9528 12 
80 dr. of grass weigh when dry - 32 dr. 4 o - 4 «1 1 8 
The produce of the space, ditto - 89.2§f bUyS * U ” 4811 * 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 3 dr. 
The produce of the space, ditto - 10.2 
The weight of nutritive matter which is lost by leaving the crop 
till the seed be ripe, being half of the value of the crop - 223 5 
7146 9 = 
717 4 
446 10 
0 
o 
0 
9 
5 
The proportional value by which the grass at the time 
of flowering exceeds that at the time the seed is ripe, is as 
6 to 12. 
The proportional difference in the value of the flowering 
and seed-crops of this grass is directly the reverse of that 
of the preceding species, and affords another strong proof 
of the value of the straws in grass which is intended for hay. 
The straws at the time of flowering are of a very succulent 
nature ; but from that period till the seed he perfected, they 
gradually become dry and wiry. Nor do the root-leaves 
sensibly increase in number or in size, but a total suspension 
of increase appears in every part of the plant, the roots and 
seed vessels excepted. The straws of the Poa trivialis are, 
on the contrary, at the time of flowering, weak and tender ; 
but as they advance towards the period of ripening the 
seed, they become firm and succulent : after that period, 
however, they rapidly dry up, and appear little better than 
a mere dead substance. 
XIII. Festuca glabra. Wither. B. 2. P.154. 
Smooth fescue-grass. Nat. of Scotland. 
At the time of flowering, the produce from a clayey loam, 
with manure, is 
