324 GBAMINACE.E. 



the Poas, but they terminate in a hard sharp point. The 

 glumes are acute and very unequal. 



In the Brome-grasses (Bromus giganteus, j#. 10), the palese 

 are awned at the back, and the glumes are awnless. The spike- 

 lets contain several florets. They are of no use to the farmer. 



The Smooth Eye Brome-grass (B. secalinus), has a spread- 

 ing panicle, and ovate spikelets containing about ten flowers 

 each. The leaves are slightly hairy, and the awns are shorter 

 than the glumes. 



The Downy Eye Brome-grass (B. velutinus), has a simple 

 spreading panicle, and its spikelets contain from ten to fifteen, 

 flowers. The awns are the length of the glumes, and the whole 

 plant is very downy. 



The Smooth Brome-grass (B. racemosus), is also somewhat 

 downy, but is taller and more slender than the two last species. 

 The Field Brome-grass (B. arvensis), has more slender spike- 

 lets, and its panicle rather droops. The leaves are hairy, but 

 the stem is smooth. 



The Upright Brome-grass (B. erectus), is distinguished by 

 its narrower leaves. 



The Eough Brome-grass (B. asper), has a much-branched, 

 drooping panicle, and very large woolly leaves. It grows in 

 moist woods, and attains a height of from four to six feet. Its 

 spikelets are long and narrow, and the awns are shorter than 

 the glumes. 



The Barren Brome-grass (B. sterilis), inhabits sandy banks 

 and waste places. Its panicle is but little branched, and its 

 spikelets, containing eight flowers, are narrow lance-shaped. 

 Eighteen inches is its usual height. 



The Annual Brome-grass (B. diandrus), is a small plant, 

 less than a foot high, with an upright simple panicle of con- 

 spicuous spikelets, from seven to eleven in number. The awns 

 are very long. Fanny has a specimen of this Grass from 

 Clifton. 

 The Barren, Eough, and Downy Eye Brorne-grasses are in 



