176 HORTUS GRAMINEUS WOBURNENSIS. 



produce of the Bromus multiflorus. The leaves of the Bromns 

 multijiorus are small in comparison to those of the Bromus arvensis, 

 and the spring produce of foliage is proportionally less ; so much 

 so as 2 to 1. If there was any doubt of rejecting the Field Brome- 

 grass as unfit for cultivation, there can be none for the many- 

 flowered Brome-grass, because it is inferior in almost every 

 respect. It is natural to soils of a less rich nature than those 

 which produce the superior pasture grasses, and the Bromus 

 arvensis. It flowers about the second week of July, and the seed 

 is generally ripe in three weeks afterwards. 



BROMUS mollis. Soft Brome-grass. Sm. Engl. Fl. p. 153. 



Specific character : Panicle erect ; spikelets oval oblong, a little 

 compressed, covered with down ; flowers imbricated ; outer 

 husk of the blossom divided at top ; awn straight, about the 

 length of the husk ; leaves soft and downy. — Fig. I. Calyx. 

 2. Floret. 3. Nectary. 4. Germen, or rudiment of the future 

 seed. 



Obs. — The panicle branches are simple, seldom supporting 

 more than one spikelet. In the Bromus arvensis and Bromus 

 multiflorus the panicle branches are branched, and some of 

 them simple. The oval oblong figure of the spikelets, and the 

 downy hairs which cover them, are characters which readily 

 distinguish this species from the others. 



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

 sandy loam is — 



Produce per Acre, 

 dr. qr. 



Grass, 16 oz. The produce per acre is 

 80 dr. of grass weigh, when dry - 40 i 



The produce of the space, ditto - 128 3 



The weight lost by the produce of one acre in drying 

 64 dr. of grass afford of nutritive matter 3 1 

 The produce of the space, ditto - 12 5 



At the time the seed is ripe, the produce is — 

 Grass, 4 oz. The produce per acre 

 80 dr. of grass weigh, when dry - 60 ^ 

 The produce of the space, ditto - 48 3 



64 dr. of grass afford of nutritive matter 3 

 The produce of the space, ditto - 3 



The weight of nutritive matter, in which the crop at 

 the time of flowering exceeds that at the time the 

 seed is ripe, is . _ - - 478 9 1 



31 14 7 



