STOMATAL RESPONSE TO SUDDEN CHANGE. 



1 1 1 1 1 1 I 



49 



J I L 



J I L 



lam. 2 3 4 5 6 7 8 9 10 II 12 6pm. 7 



Fig. 14. — Curves of experiments 46, 47, and 54, Fouquieria splendens. Plotted so as not to intersect. 



V 



r 2 ^ 



10 12 2a.m. 4 6 8 10 12 2p.m. 4 6 8 10 



Fig. 15. — Curves for experiments 45 and 68, Fouquieria splendens. s, curves of stomatal 

 movement ; /, transpiration curves. 



