LUTHER BURBANK 



viduals closely resemble their white parent; yet, 

 as one of their parents was the orange daisy, it is 

 obvious that they have in their germ plasm factors 

 for yellow pigment, even though these are not 

 revealed. 



These hybrids, notwithstanding the strain of 

 yellow in their germ plasm, are as white to all 

 outward appearance as their white parent; a fact 

 which, taken by itself, sufficiently demonstrates 

 that the white parent itself may have the sub- 

 merged factors for pigment in its germ plasm. 



In point of fact, it appears to be sufficiently 

 established that white flowers may be white not 

 because they altogether lack hereditary factors for 

 pigmentation, but for the paradoxical reason that 

 they possess these factors in superabundance. 



We saw in our discussion of the colors of the 

 poppy that there is reason to believe that two 

 dominant colors, grouped together, may neutralize 

 or mask each other and produce no tangible char- 

 acter. 



If we revert to an illustration used in another 

 connection, in which we imagined that elfin archi- 

 tects are at work in the germinal nucleus, match- 

 ing up the different hereditary factors to build a 

 new organism, we may suppose that occasions 

 arise when there is a superabundance of material 

 (in the case under consideration, let us say, ma- 



[162] 



