82 



NORMAL AND EXPERIMENTAL POLLINATION. 



corollas were removed from 2 heads and flowers of Chamaenerium sub- 

 stituted. Heads were also mutilated by shortening the corolla to half its 

 length, leaving the stamens intact in one case and removing them in another, 



Table 56. — Summary of calendars. 

 Calendar 1. 



Table 57. — General summary. 



