282 



The Pedigree Families. 



with the pollen of a closely related individual of 0. La- 

 mar ckiana. There happened, in this group, to be four 

 mutations so close to each other that they could all be 

 photographed together: they did not occupy a space of 



4 



Fig. 49. Oenothera rubrinervis. A mutated specimen. It is 

 the same plant we have seen in the right upper corner of 

 Fig. 48, but now in flower. It originated from six genera- 

 tions of O. lata which in their turn arose from O. La- 

 marckiana. 



more than 13 X 18 centimeters so that I could photo- 

 graph them, natural size, on a plate of these dimensions. 



