MENDELIAN INHERITANCE IN OENOTHERA PRATINCOLA 



39 



TABLE 28 



Analysis of the F 2 generation resulting from self-pollination of f. typica plants chosen at ran- 

 dom from the F\ generation (see table 27} of the cross f. typica M (heterozygous] X /. typica C 

 (a'pF/X c&FF). 



Of the eighteen progenies, eleven consist entirely of flat-leaved plants and seven consist of 

 flat-leaved and revolute-leaved plants in approximately a 3:1 ratio. The ratio 11:7 does not 

 approach as closely as expected, to the 1 : 1 ratio of gametes bearing the dominant factor to 

 gametes bearing the recessive factor, produced by the heterozygous pistillate parent of the cross. 



GENETICS 6: Ja 1921 



