240 GRASSES OF BRITAIN. 



AiRA FLEXUOSA (variety) Montana. 

 Slender Mountain Hair- Grass. 



Plate CVIII. 



This variety is frequent on the Highland moors, growing on peaty 

 soil among heather ; flowering in the first week of August. It is 

 principally distinguished from the preceding in being of a more slen- 

 der habit ; ligules more acute, and the lowermost floret projecting 

 conspicuously beyond the small glume. In other respects the two 

 plants are similar. 



The accompanying figure was drawn from a specimen gathered on 

 Ben Lawers. 



Explanation of Plate CVIII. Aira fiexuosa (variety) montana, 

 natural size. 



Fig. 1 . Spikelet, showing the glumes and floret. \ "c 



2. Florets removed from the glumes, showing the inner palese and awns. / S 



3. Ligule cloven. I S) 



4. Pistils, stamens, and scales. / ^ 



