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THE AMERICAN NATURALIST [Vol. XLVIII 



cause of their similar behavior they will be considered 

 together here. Of the F 1 red ears arising from homozy- 

 gous, variegated-eared plants that had been crossed with 

 white-eared races, three were self-pollinated and two 

 crossed with whites. Of the F 1 red ears arising from 

 heterozygous, variegated-eared plants that had been 

 crossed with white-eared races, four were selfed. The 

 results in F 2 and F, are : 



So far as these results go they indicate that F t reds 

 arising from crosses between both homozygous and heter- 

 ozygous, variegated-eared plants and white-eared races 

 behave as if they were hybrids between red-eared and 

 white-eared races. 



One homozygous, variegated-eared plant was cross- 

 pollinated by a homozygous red race. From the varie- 

 gated ear produced, self-red, nearly self-red, and narrow- 

 striped seeds were planted. All resulted, of course, in 

 red-eared F 1 plants, 16 in all. A self-pollinated F x red 

 ear from a narrow-striped seed gave in F 2 24 red-eared 

 and 11 variegated-eared plants — somewhat fewer reds 

 than were to have been expected. An F 1 red ear from a 

 nearly self-red grain, when cross-pollinated with non-red, 

 yielded 9 reds and 11 variegated in F 2 . A third F x red- 

 eared plant, this one from a self-red grain of the varie- 

 gated parent ear, bred true red in F 2 . One ear of this F x 

 plant was selfed and yielded 14 reds in F 2 , and another 

 ear was cross-pollinated by non-red and yielded 29 reds. 



There are various other somatic variations rather fre- 

 quently seen in maize, but they are apparently not in- 



