342 BOTANICAL GAZETTE [NOVEMBER 
CASE VI 
WHEN THE DAUGHTERS OF A SELF-FERTILIZED HERMAPHRODITE ARE CROSSED WITH 
E OF THEIR HERMAPHRODITE SIBS ‘ 
Pedigree no. Result | Pedigree no. Result 
OOTP kn ee i: 62: 2% RQS Ati wo ok 92: 28 
OR ei ey Pet le 239:133 OGIO cee ee ee ee 302:179 
OE Foie ou ee as sie iy hs SOLO esse ee es 482: 6% 
at a(S ON Si Seo a ne 459: 289 OOLOs ea ave eee 403: 20% 
ers es ee aoe re aa 639: 16% (sy log Wa pee ohare cen ar is 40f: 7% 
RR ey ath ahi ss ok ws 49: 38 POR en ee inion 35%: 102 
8 = OED a 369: 7% OOI05. sos as sree ge: 7% 
otal. aes 4292:155% 
The seed parents of these families were the same 14 females 
which produced the families considered under case V. In the 
present case they were all pollinated by a 
2 oe single hermaphrodite, 08115(9), in the family 
to which they themselves belonged. The 
results correspond closely with those of the 
last section, except that in this case the males 
(Mutant) 2) X Self were invariably hermaphrodites, showing as 
before that the character of the pollen parent 
— determines the sex character of the male — 
offspring. It may be noted that most of 
Q o these families contained a strikingly high per- 
centage of females, as compared with those 
under case V, there being 73.46 per cent of 
females among the progenies of case VI, and 
only 60.7 per cent among those of case V- 
2 fe) The meaning of such differences in the sex 
6 ree ratios is quite unknown at the present time, 
fia 6 Mody peal. and no discussion of the series of experiments 
Side fod cane VL. which are in progress for the purpose of 
finding an interpretation of such variable 
ratios will be undertaken here. It is believed, however, that the 
question of the sex-ratios constitutes an altogether different prob- 
lem, and has no direct bearing upon matters relative to the genetic’ 
interrelationships of the different sexual types, which are alone 
under consideration in this paper. 
