Striped Flowers 319 



half wholly red. Four individuals were found 

 with only uniform red flowers. These were iso- 

 lated and artificially pollinated, and the same 

 was done with some of the best striped indi- 

 viduals. The seeds from every parent were 

 sown separately, so as to allow the determina- 

 tion of the proportion of uniform red individ- 

 uals in the progeny. 



Neither group was constant in its off- 

 spring. But as might be expected, the type 

 of the parent plant prevailed in both groups, 

 and more strongly so in the instances with 

 the striped, than with the red ones. Or, in 

 other words seed-reversions were more numer- 

 ous among the already reverted reds than 

 among the striped type itself. I counted 2% 

 reversion in the latter case, but 24% from the 

 red parents. 



Among the striped plants from the striped 

 parents, I found some that produced bud- 

 variations. I succeeded in isolating these red 

 flowering branches in paper bags and in polli- 

 nating them with their own pollen, and subjected 

 the striped spikes of the same individuals to a 

 similar treatment. Three individuals gave a 

 suflBcient harvest from both types, and these 

 six lots of seeds were sown separately. The 

 striped flowers repeated their character in 98^ 

 of their offspring, the red twigs in only 71^, the 



