Tlg.l 



Epidermis , leaf of Oxalis 

 Qrowrv under normal conditions. 



Epidermis from Oxalis 

 subjected to drouglit . 



Fig. 3 



EpidertniSjleaf of Canna., 

 grown under normaJi conditioas. 



Epidermis, leaf of Canna, 

 subjected to drought. 



Fig. 



Epidermis leaf of coinmon bean, 

 grown unda*. normal conditions. 



Epidflrtois ,leaf of common bean, 

 plant subjected to drought. 



