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THE AMERICAN NATURALIST [Vol. XLVIII 



Variegated and white 8 103 68 



Two other ears of similar history, while they gave quite 

 as striking results as those noted above, probably do not 

 belong here since none of their immediate progeny were 

 variegated and no variegated ears have occurred in later 

 generations. These two ears were made up of red grains 

 and white grains only. The results were as follows: 



The white ears bred true in later generations and the 

 red ears produced reds and whites in typical Mendelian 

 fashion. No such somatic variations as these have oc- 

 curred in my cultures of self-red or white maize, so that I 

 have been unable to study them further. Somatic varia- 

 tions in variegated corn, however, are not rare. Unfor- 

 tunately several of the most pronounced of those occur- 

 ring in my cultures were open-pollinated and therefore 

 of little or no use in a careful study. I have therefore 

 been obliged to make use in large part of the few solid 

 red and nearly solid red grains scattered over otherwise 

 more or less evenly variegated ears. 



From twenty-three self-pollinated, variegated ears of 

 plants that were homozygous for pericarp color, grains 

 with various amounts of red were selected and planted. 

 The results are summarized as follows : 



