1913.] PUBLIC DOCUMENT — No. 31. 185 



Turning now to a discussion of the tabnlatod data, Table 1 

 shows the results of crossing varieties with light pink flowers 

 with white-flowered sorts, where only light pink and white- 

 flowered plants resulted. Some such crosses gave pink-flowered 

 plants, and these are given in Table 2. The results sho^^^l are 

 generally in accordance with JNIendelian expectation, assuming 

 the light pink blossom to be dominant over white. There are 

 two cases where a white-flowered parent has colored offspring. 

 It is possible that in the cross Ked Valentine and Giant String- 

 less this is due to error in observation of the color of the flowers 

 of the parent plant on account of the effect of bagging to insure 

 self-fertilization, this having a tendency in some cases to cheek 

 color development. The same may be said regarding the similar 

 case in Eed Valentine X Mohawk. The case of the single light 

 pink plant in Golden-eyed Wax X Giant Stringless is unex- 

 plained. Sdme departures from the numerical expectation are 

 recorded. A marked excess of white-flowered plants occurs in 

 the crosses involving Golden-eyed Wax, and a similar excess is 

 shown in later tables when this variety is involved. 



