264 Dr White on Agropyrum Donianum. 



leaves, longer and llexuose awn of the outer pale, and 

 structure of the inner pale, which is truncate or scarcely 

 acute at the apex, into which the ribs converge and vanish. 



Though A. Do7iianu7n has as yet been detected on Ben 

 Lawers only, it probably occurs elsewhere, and possibly 

 may have been confounded with forms of A. violaceum in 

 Northern Europe. In Alopccurus alpinus, Sm., we have an 

 example of a grass which was found first in Scotland, and 

 afterwards in the Arctic regions and in Fuegia. 



