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EVOLUTION OF PLANTS 



Dicotyledons 



Orchids 

 Orchidacese 



Banana, ginger, etc. 

 (Scitamineae) 



Dicotyledons 



Aroids 

 (Aracese) 



Iris, etc. 

 (Iridacese) 



Palms 

 (Palmacese) 



Lilies 



Grasses 

 (Grammefe) 



Apocarpre 



Screw-pines 



(Pandanaceae) 



Bur-reeds. 

 (Sparganiacese) 



Pond-weeds 

 (Naiadaceas, etc.) 



Diagram to illustrate the relationships of the principal orders of 

 Monocotyledons. 



