

*•*•• 



Elodea 



r_ Y 



■x 



Humulus 



M M 

 •mm mm 



Rumex 



V^llisnerm 



Vadlisnerm 



Mel&ndrium 



Me tan dpi urn 



*% 



w 





Pollen Ovule 



Fig. 123. 

 Maturation groups of several dioecious plants. (After Belar.) 



