CXXII. COMPOSITE. 



501 





Groundsel. 

 Closed head (ma?.). 



Seneclo Jacoboea. 

 (Tubulifloral.) 



Groundsel. 

 Vertical section of 



the common 

 receptacle (mag.). 



Groundsel. 



$ floret cut 



vertically (mag.). 



Achillea. 

 Head (mag.). 



Chrysanthemum. 

 9 floret. 



. Milfoil. 

 9 demi-floret (mag.). 



