THE GENERAL CHARACTERS OF SEEDS 



421 



Figure 255A 



fig. 255A 



Figure 255B 



Fig. 255B 



Fig. 255. A. Perennial Rye Grass {Lolium perenne). B. Italian Rye-grass 



(Lolium italicum), 

 (A, after Hillman ; B, drawn by C. M. King.) 



Italian Eye Grass (Lolium italicum A.). 



Spikelets two-fifths to three-fifths in. long, 6-15-flowered ; flower- 

 ing glume scabrous near the summit, awned; awn slender, about 

 length of glume ; margin of palet serrate. 



Quack Grass {Agropyron repeiis (L.) Beauv.). 



Spikelets 4-8-flowered; empty glumes 5-7-nerved, obtuse or 

 notched, acute or acuminate; flowering glume awned near apex; 

 two-fifths in. in length; 5-7-nerved above the middle, finely rough- 



