LLOYD 



PLATE 9 



EXPLANATION OF PLATE. 

 Stomate of Verbena ciliata at various times, under red light. 



1. 4>>30 m a. m. Experiment 212. 3. 11 a. m. Experiment 214, control. 



2. Il h 30 m a. m. " " 4. 6 h 30 m p. m. " 214. 

 2a. A single plastid from figure 2. 5. Il h 30> a. m. " 218. 



