202 BOTANICAL GAZETTE [OCTOBER 
Percentage of individuals with anthers dehisced. 
100 
Graph 
90 plotted to 
nearest 
integers, 
80 showing 
percentage 
of flowers 
70 with an- 
thers 
dehisced. 
60 Abscissa 
denote 
classes of 
50 flowers 
examined, 
m lengths 
40 by mith- 
here 
Or dinates 
50 _ denote per- 
centage of 
individuals 
20 in each 
class. 
10 
0 
Pe ee 
Classes of flower lengths by millimeters. 
Fic, 5 
