36 



PHLEUM ARENARIUM. 



of the keel and inner edges fringed. Floret consisting of two 

 equal-sized membranous palese, notched at the apex, the outer 

 palea five-ribbed; keel hirsute. The length of this Grass varies 

 considerably, according to the support it is enabled to procure 

 from the sandy ground. Sometimes it does not exceed three 

 inches, at others it is five times this length. 



Phleum arenarium has much smaller spikelets than P. Michelii, 

 it is notched at the summit instead of being entire, and the 

 glumes not hirsute on the lower half of their keels. It differs 

 from P. pratense in being smaller, the base of the panicle 

 contracted, and having no awned floret. 



Comes into flower in the middle of July, the seeds becoming 

 ripe in about a month. 



The specimen illustrated was gathered at Fleetwood, by Mr. 

 Joseph Sidebotham, of Manchester. 



Phleum arenarium. ^From a dwarf specimen 



