36 



FRIEDA COBB 



TABLE 21 

 Analysis of the Fi generation of the cross f. typica M (homozygous) X /. typica E (a'fiFF X aft/). 



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

 folia C. Each of the cultures contains only flat-leaved plants. Of the 157 plants grown to 

 maturity, taken in part from each of the five cultures, 155 proved to be f. typica, and the remain- 

 ing 2 were mut. fallax. 



TABLE 22 



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

 dom from the FI generation (see table 21) of the cross f. typica M (homozygous) X/. typica E 

 (a'0FF X aftff). 



Each of the cultures contains flat-leaved and revolute-leaved plants, in approximately a 3:1 

 ratio. Of the 25 plants from one culture grown to maturity, 22 proved to be f. typica, 1 was 

 of another flat-leaved type (mut. dimorpha), and 2 were mut. formosa. 



