F. C. Miles 



205 



at present, but careful study should be made to determine whether 

 or not some of the factors for aleurone colour may in some way be 

 related to the factor (or factors) concerned in the development of 

 the variegated leaves, for in the instances in which aleurone colour 

 was not involved the variegated condition of leaves appeared to be a 

 simple Mendelian recessive. 



TABLE IV. 



Colour of F„ plants and the aleurone colour of grains home on the self-pollinated 

 F.-. plants, together with results obtained in F^ of the cross betvOeen Zen 

 japonica and ordinary green maize. 



Results obtained in F:i 



Colour of 

 Fz plants 



Green 



Colour of aleurone in 

 grains of ear of F^ plants 



Lacked aleurone colour 



Striped 



3 black grains 



to 

 1 non-coloured one 

 9 black grains 



to 

 7 non-coloured ones 

 Black aleurone colour 



Lacked aleurone colour 



9 black grains 



to 

 7 non-coloured ones 



27 



30 

 45 



57 

 35 

 31 



13 



5 



16 



12 



27 



31' 



6 

 16 



63 

 57 

 32 

 24 

 23 



A study has been made of the behaviour of the peculiar green- 

 striped plants (PI. VIII, fig. 9) described by Emerson (10). When 

 crossed with green plants the Fj plants are fully green, and in the F^ 

 there occurs the regular segregation. In a total of 466 plants of 

 nine progenies there were 357 green plants and 109 which had 



1 The parent which yielded this progeny of striped plants was also one of the purplish 

 plants, and if any stripes were present they were so very faint that they were overlooked 

 when notes were taken. 



