320 LUTHER BURBANK 



It will further be recalled that when these two 

 species, the orange and the white, have been 

 hybridized, the hybrid offspring shows an aston- 

 ishing diversity of color. 



Not only oranges and yellows of many shades, 

 but shades of purple and red also appear. It 

 was by selection among the red hybrids, as 

 will be recalled, that a so-called African daisy 

 of a beautiful and uniform pink color was 

 developed. 



It will further be recalled that among the 

 hybrids were some which showed, on the backs 

 of their petals, streaks of purple, showing that 

 factors for blue color, as well as factors for 

 yellow and red, are present. 



The interest of this experiment, as a mere 

 illustration of a new race developed by hybrid- 

 ization, is not inconsiderable. But the chief 

 interest of the experiment centers about the pro- 

 duction of new colors which appeared to be alien 

 to the hereditary traditions of either of the 

 African tribes. 



Properly interpreted, the facts brought to 

 light by these experiments fall in line with a 

 large number of observations having to do with 

 the colors of flowers, and give intimations of an 

 interpretation of the entire subject of floral 

 coloration. 



