ARTIFICIAL SELECTION 



95 



Among these may especially be mentioned besides the 

 Primus already spoken of, the Iceberg, a cross-bred white 

 blackberry derived from a hybridization of the Crystal White 

 (pistillate parent) with the Lawton (staminate parent), with 



FIG. 61. Seedlings of the Japanese quince, Pyrus Juponica: colors, orange yellow, or 

 almost white, with crimson dots and splashes. (From photograph by Burbank.) 



