MENDELIAN INHERITANCE IN OENOTHERA PRATINCOLA 



35 



TABLE 18 



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

 from the Fi generation (see table 17) of the cross f. typica M (heterozygous) X mut. formosa 



Each of the cultures contains both flat-leaved and revolute-leaved plants, in approximately 

 a 3 : 1 ratio. Of the 50 plants from one culture grown to maturity, 42 proved to be f . typica 

 and 8 proved to be mut. formosa. 



TABLE 19 

 Analysis of an FI progeny of the cross f. typica EXf. typica M (homozygous) (aftf X a'pFF). 



The staminate parent belonged to the F 3 generation of the cross mut. formosa X mut. lati- 

 folia C. All of the plants are flat-leaved. Of the 49 plants grown to maturity, 44 were f . typica, 

 and the remaining 5 were of other flat-leaved types 2 of mut. ericacea, 2 of mut. dimorpha, and 

 1 undetermined mutation. 



TABLE 20 



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

 dom from the F t generation (see table 19) of the cross f. typica EXf. typica M (homozygous) 

 (aftff X a'pFF). In each culture all of the plants are flat-leaved. 



GENETICS 6: Ja 1921 



