202 HORTUS GRAMINEUS WOBURNENSIS. 



eye. I have tried it on three different soils, but without success. 

 It thrives best on a rich deep loam, and, next to that, on a clayey 

 loam : when cultivated on a sandy siliceous soil, the produce is 

 very inferior; on this account it is introduced in this place. 

 It might be propagated to any extent by parting the roots ; but its 

 merits, as will appear from the above details, do not warrant any 

 recommendation to that effect, but rank it with the inferior 

 grasses. 



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

 about the third week of July. 



TRITICUM caninum. Bearded Wheat-grass. 



Specific character: , Calyx- valves somewhat awned, with three or 

 five ribs ; florets four, awned ; leaves flat ; root fibrous. Sm. 

 Engl. Fl. i. p. 184. 



Obs. This differs essentially from the common couch-grass 

 (Triticum repens), in having the root fibrous; the awns are 

 also much longer than those of the awned variety of common 

 couch (Triticum repens, var. aristatum). E. Bot. 1372; Hort. 

 Gram. Wob. 93. German Hunds-Weizn. 



Native of Britain. Root fibrous. Perennial. 



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

 sandy loam is 



Produce per Acre, 

 dr. qr. Ibs. 



Grass, 18 oz. The produce per acre 12251 4 



80 dr. of grass weigh, when dry 32 ^ g Q 



The produce of the space, ditto - 115 OJ3 



The weight lost by the produce of one acre in drying 7350 12 



64 dr. of grass afford of nutritive matter 2 2 "> 



The produce of the space, ditto 11 15 



At the time the seed is ripe, the produce is 

 Grass, 16' oz. The produce per acre - 10890 



80 dr. of grass weigh, when dry 46 7 261 12 



The produce of the space, ditto - 147 0* > 



The weight lost by the produce of one acre in drying 4628 4 

 64 dr. of grass afford of nutritive matter 20V O^Q r Q 

 The produce of the space, ditto 8 5 



At the time of flowering, the produce in the same year that 



the above seed crop was ascertained consisted of 

 Grass, 16 oz. The produce per acre - 10890 



