104 White. 



in connection with corolla shape, possibly resulting from internal 

 environmental changes. It occurred in a family of 36 Fi plants of 

 301 — 1 — 5 X 373, and all its (Plant 17) flowers were deeply lobed,, 

 similar to those of the mother, rather than to the pentagonal corolla- 

 shaped flowers of the pollen parent. Cuttings were taken and grown 

 the next year in field cultures, with the result that both of the parental 

 types of flowers as well as intermediates were produced on the same 

 plant. Seed was not saved from these three kinds of flowers to 



Fig. 17. Flowers of parents and F^ hybrid (303—1—24 X 332). 

 From right to left: 832, 301—24 X 332 and 4 flowers of 300—309 race. 



determine if somatic segregation had taken place. Selfed seed from 

 the original plant gave only an ordinary segregating F2 population. 



The other exception was in the nature of a mutation. It occurred 

 in a 304 X 402 Fi family of 39 individuals grown in 1910. Its 

 resemblance to a plant of the pure fasciated (300 — 309) strain was very 

 striking (see Table 6, Plant 39) and I would have eliminated it as a 

 stray contamination, without any hesitation, had I not found after 

 repeated trials to secure selfed seed, that it was at least self -sterile. 

 And as I recall, cross -fertilization was also attempted, but resulted in 

 failure. The latter point is one on which I have no notes, so I am 



