58 AGROSTIS SETACEA. 
three. Anthers cloven at either extremity. Length from eight 
to fifteen inches. 
Flowers in July, and ripens its seed at the beginning of 
September. 
It is readily distinguished from other species. Agrostis vul- 
garis has stem and sheaths smooth, and imner palea half the 
length of outer one. A. alba has mostly no awn, and the leaves 
from the root are not setaceous. -A. canima has smooth leaves 
and sheaths, and no inner palea. 
The illustration is from a specimen gathered at Penzance, by 
Mr. J. Ralfs. 
