Scientific Aspects of I^uther Burbank V Work 



it, and got next year one pretty blue one out of 

 many thousand, and now I have one almost pure 

 blue/' 



But another brilliant new poppy was made in 

 a different way. The pollen of Papaver pilo- 

 sum, a butter-colored poppy, was put on the pistils 

 of the Bride, a common pure white variety of 

 Papaver somniferum (double), and in the progeny 

 of this cross was got a fire-colored single form. The 

 character of singleness was common to the ances- 

 tors of both parents, the character of fire color in 

 the lineage of somniferum only, although the red 

 of the new form is brighter than ever before known 

 in the somnifera series. Both characteristics were 

 absent (or rather latent) in both parents. And 

 yet the perturbing influence of the hybridization 

 brought to the fore again these ancestral characters. 

 The foliage of this fire poppy is intermediate in 

 type between that of the two parents. 



The history of the stoneless and seedless plum, 

 now being slowly developed by Burbank, shows an 

 interesting combination of selection, hybridization 



102 



