DICOTYLEDONS 



219 



Labiatiflorse 



Sympetalas 

 (Isooarpse) 



Poplars, willows, etc. 

 (Amentacese) 



CompositsB 



Sympetalae 

 (Anisooarpse) 



UmbelliflorsB 



CentrospermM Calyoiflorse 



Peppers 

 (Piperinese) 



PolycarpicEe 



Aroidese 



Apocarpse 



Monocotyledons 



Diagram to show the relationships of the principal groups of 

 Dicotyledons. 



