46 POLYPOGON MOXSPELIENSTS. 



inches. Branches rough, but rachis almost smooth. Spikelet 

 of one awned floret, shorter than the calyx. The 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 palea?, 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, some- 

 what 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 fprwarded by Mr. Joseph Sidebotham, of 

 Manchester. 



