HORTUS GRAMINEUS WOBURNENSIS. 361 



FESTUCA elalior, var. sterilis. Barren-seeded Tall Fescue. 



Specific character : Panicle directed on one side, upright ; spike- 

 lets mostly awned, the outer one cylindric. Hort. Gram. 

 Fol. 255. 



Obs. It greatly resembles the Festuca pratensis. It is larger 

 in every respect ; flowers eight or ten days later. The panicle 

 of the pratensis is upright at first, afterwards drooping; while 

 the panicle of the elatior is drooping at first, and afterwards 

 upright : spikelets of a green and purple colour, cylindric, 

 generally awned ; leaves rougher and less pointed than those 

 of the Festuca pratensis. 



Native of Britain. Root perennial, fibrous. E. Bot. 1593 ; 

 Curt. Lond. 6, t. 7 ; Flo. Ger. Bromus littoreus. 



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



black rich loam is 



Produce per Acre, 

 dr. qr. Ibs. 



Grass, 75 oz. The produce per acre 51046 14 



80 dr. of grass weigh, when dry 28 7 i oogg g o 



The produce of the space, ditto - 420 3 

 The weight lost by the produce of one acre in drying 33180 7 8 

 64 dr. of grass afford of nutritive matter 50^ sqftft n 9 

 The produce of the space, ditto 93 3 $ 



At the time the seed is ripe, the produce is 

 Grass, 75 oz. The produce per acre - - 51046 4 

 80 dr. of grass weigh, when dry 28 7 ]7fi g Q 



The produce of the space, ditto - 420 3 

 The weight lost by the produce of one acre in drying 3317913 8 

 64 dr. of grass afford of nutritive matter 307 0309 13 9 

 The produce of the space, ditto - 56 1 3 



The proportional value in which the grass of the 



flowering crop exceeds that at the time the seed 



is ripe, is as 5 to 3. 



The produce of latter-math is 



Grass, 23 oz. The produce per acre - - 15654 -6 



64 dr. of grass afford of nutritive matter 4 - 978 6 6 



The grass, at the time of flowering, affords more nutritive matter 

 than that of the latter-math, in the proportion of 5 to 4 ; but the 

 grass of the latter-math contains more nutritive matter than that 

 at the time the seed is ripe, in the proportion of 4 to 3. 



