50 



BOARD OF AGRICULTURE. 



Fig. 30. Sea Spear Grass. 



Fig. 32. Common Manna Grass. 



The Floating Meadow Grass, or Common Manna Grass, 

 (poa JiuUans,^ referred by Gray to g-lT/ceria, differs from the 

 other species of the poa genus in the general appearance of its 

 slender panicle and long, linear spikelets. It grows from fifteen 

 inches to two feet high, with a perennial, creeping root, erect, 

 round, smooth stem, leaves large, rather long, ronghish on both 

 sides, lower ones flat, upper ones generally folded ; spikelets 

 few, long and linear, as shown in Fig. 82, which represents the 



