36 PHLEUM ARENARIUM. 
of the keel and inner edges fringed. Floret consisting of two 
equal-sized membranous palew, 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. Micheli, 
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. 
