180 Observation of the Origin of Varieties. 



CHRYSANTHEMUM SEGETUM PLENUM. 

 (See page 182.) 



CURVES OF RAYS IN THE ANCESTRAL GENERATIONS^ 



(Only the terminal inflorescence of each individual was employed in 



plotting these curves.) 



(continued.) 



(continued.) 



(continued.) 



^ These series of figures, with the exception of those for 1896 

 are exhibited in the form of curves in Fig. 32. 



^For the complete curve of 1896 see page 175. The individuals 

 with 10-13 rays are left out here. 



