GRASSES OF BRITAIN. 235 



The accompanying figure was taken from a specimen gathered on 

 Ben Lawers in the month of July. 



Explanation of Plate CV. Aira ccBspitosa (variety) longiaristata, 

 natural size. 



Fig. ] . Spikelet, shoflring the glumes and two florets. ^ 



2. Glumes. { % 



3. Two florets removed from the glumes, showing the inner paleae and \ "a 



footstalk of a third floret. i ^ 



4. Pistils, stamens, and scales. J ^ 



5. Ligule long and acute, natiu-al size. 



