tgr1] SHULL—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 Jone sib, 
o8109(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 o8109(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 
Pedigree no. Result % 
OOTIO Sis oe a _— §09:276 
OOTS0. ev ae kes  372:168 
OOTS?. 66.5 33%: 268 
OOTI2 85. 6s Pen 619:148 
OGX0S 2s ce 492:424 
OOTOG a view cee 452: 108 
OOLIOs Fees wee ee 582: 336 
LOM Cae es 3339: 1686 
In order to make sure that the conclusions drawn from the first 
§eneration regarding the character of the hermaphrodites C and D, 
