544 Journal op the Department of Agriculture. 



Fig. 20. — Linear. 

 "The False Horse- Weed " {Erif/fro/i ho/uiritm-sU). 



Fig. 21.— Oblont 



Fig. 22. — Lanceolate. 

 Rib Grass {Plantajjo la/irfolata'). 



Fig. 23.— Elliptic. 



