EXERCISE 17 (Continued) 



FIG. 33. Juncture of sheath and 

 blade. Kentucky blue grass. 



FlG. 31. Juncture of sheath and blade. 

 Orchard grass. 



FIG. 34. Juncture of sheath and 

 blade. Canada blue grass. 



FIG. 32. Juncture of sheath and blade. 

 Meadow fesque. 



56 



FIG. 35. Juncture of sheath and blade. 

 Quack grass. 



