30 PHLEUM ASPERUM. 



white, the inner edge obtuse at the apex, straight and membran- 

 ous. The floret consisting of two palese, the exterior one 

 rough, indistinctly five-ribbed, the centre rib being hirsute on 

 the upper portion. Floret a third shorter in length than the 

 glumes. Filaments capillary, three in number. Anthers cloven 

 at either extremity. Styles bold, two in number. Stigmas 

 feathery. Seed diminutive, loose, cylindrical in form. Length 

 from six to eighteen inches. 



Flowers in July, the seed becoming ripe at the commencement 

 of September. 



The present species is readily distinguishable from the remain- 

 der of this family by its cuneate glumes, and rough but not 

 hairy keels. 



The specimen illustrated was gathered near Belfast, and con- 

 tributed by Mr. Joseph Sidebotham, of Manchester. 



