Semi-Double Shastas 



Here are some Shastas in which the tendency to increase 



of ray flowers shown in an earlier picture has been accentuated 



through selection, until comparatively little of the central seedbearing 



portion of the flower remains. Contrast this flower with the 



little ox-eye, as showing vividly the changes that may 



be wrought in a flower in the course of a few 



generations of selective breeding. 





