WHITE— STUDIES OF INHERITA^XE IX PISUM. 



573 



G = glaucous, E ^ emerald, C = colored flowers, W ^ white flowers, 

 F = free seeds, A = adhering or chenille seeds. 



Free seeds, emerald foliage X chenille seeds, emerald foliage 

 (both parents white flowered) gave in F^, free seeds and glaucous 

 foliage. In F^, 50 glaucous non-chenille, 39 emerald non-chenille 

 and 2 emerald chenille were obtained or 89 with free seeds to 2 

 with chenille seeds. In F,, the tested F„ segregates gave: 



Interpretation. 



The only explanation so far offered for these perplexing results 

 is that by the Hagedoorns (38.5), in which the factor S (A) rep- 

 resents free seeds and its absence chenille seeds. The presence of 

 either or both of the factors for glaucous foliage, Bl and W, is 

 unfavorable for the expression of "chenille." Only plants of the 

 formula sblw (abc) normally give chenilles, in other words plants 

 with emerald foliage from which S (A) is absent. The factors 

 responsible for broad non-parchmented pods and colored flowers 

 in association with the sblw combination is favorable to the produc- 

 tion of chenilles, while the blueing factor B which transforms pink 

 flower color into purple red flower color is unfavorable because it 

 also darkens the color of the seed coats. Environmental conditions 

 are also modifying agents. The presence of the factors for broad 



