2 GRAMINEJE. 



ceous, and knotted. Occasionally branched, seldom shrubby. 

 Hollow mostly, being closed at the joints. 



Leaves, a single one to each node, having a sheath slit lon- 

 gitudinally on one side, and frequently possessing a membranous 

 appendage at the summit, called a ligule. 



The flowers, which are small, are solitary or in spikelets, 

 which are panicled or spiked. 



