46 POLYPOGON MONSPELIENSIS. 



calyx of two membranous hairy obtuse linear glumes, having a rough 

 slender awn of great length arising just beneath the apex. Dentate 

 on the lower half of the keels. Destitute of lateral ribs. Floret 

 consisting of two palese, the exterior one ovate in shape, destitute of 

 lateral ribs, half the length of the calyx, and furnished with a small 

 awn, the interior one thin and pellucid, somewhat shorter and with 

 entire margins. Length from nine to fifteen inches. Root creeping 

 and fibrous. 



Flowers in the first week in July, and ripens its seed the second 

 week of August. 



The illustration is from a specimen gathered in Plumstead Marsh, 

 Kent, and forwarded by Mr. Joseph Sidebotham, of Manchester. 



