WEEDS. 



PLATE 19. 



No. 28. 



Rib Plantain. 

 (Plantago lanceolata.) 



No/29. 



Hard or Blackheads, or Knapweed. 

 (Centaurea 



No. 30. 



Rattle in Seed. 

 (RMnanthus crista-galli.} 



