i9i i] SHU LL REVERSIBLE SEX-MUTANTS 353 



tional stamens, and both approached more nearly to the type of 

 normal males as the season advanced. On account of the anoma- 

 lous position of the stigmas in these plants, they are not to be 

 included in the same class with the other hermaphrodites which 

 have been considered, but it may not be unfair to accept the appear- 

 ance of stigmatic calyx teeth in these male plants as additional 

 evidence that the male is heterozygous in regard to sex, but nor- 

 mally has the presence of the female character completely hidden 

 by the dominance of the male character. A somatic derangement 

 may be assumed as the proximate cause of the appearance of the 

 misplaced stigmas. 



These 2 abnormal plants were crossed upon a female sib, 

 08109(1), and produced together 119 females and 60 normal 

 males, not one of which showed any development of stigmatic 

 calyx lobes or other female characteristics. The female 08109(1) 

 was the one used in case VII for a number of crosses with genetic 

 hermaphrodites, and it was also used as the seed parent in 20 crosses 

 with males of various origin. In all of the other crosses upon this 

 female, the males among the progenies were of the same type as the 

 male parent used in the particular cross from which they sprang, 

 thus showing that this female exerted no modifying influence upon 

 the sex character of her male offspring. This makes it reasonable 

 to conclude that the stigmatic calyx lobes were a purely somatic 

 variation. 



CASE XIV 



THE SECOND GENERATION FROM A SOMATIC MALE 



In order to make sure that the conclusions drawn from the first 

 generation regarding the character of the hermaphrodites C and D, 



