THE PHYSIOLOGY OF STOMATA. 



June 21. 1906. Ampelopsis quinquefolia. (Fig. 29.) Stomatal movement during day; 

 plant on east side of building in sunlight till 1 1 a. m. ; on west side in shade till that 

 hour, i eyepiece part= 3.5 micra. 



TABLE 44. 



w.e. 



3a.m. 5 



FIG. 29. Curves of Stomatal movement, between the hours of 3 a. m. and 3 h 30 m 

 p. m., for Ampelopsis quinquefolia. 100 parts on the ordinates = l part in 

 table 44. . ., eastern exposure of building; vi.e., western exposure. 



