332 
AB X al» 
n-1 
n-1 n-1 
n-1 
lab 
3Ab W Ab , a B }-!< 3a B 
laß 
Fig. 3. 
gametes. Reduplication or proliferation resulting in n — 1 gametes 
may then take place in either of the opposite pairs of quadrants 
according to the parental composition. 
2. If in the gametes of any plant some faetors are distri- 
buted according to one of the reduplicated series and other 
faetors according to the normal Mendelian System, as we know 
they may be, the segregations by which such a System is brought 
about c a n n 0 1 have happened simultaneously. Moreover if various 
reduplications can take place very early in some individuals and 
not in other s, we cannot imagine how the normal form of the 
plant remains unchanged, nnless these reduplications affect tissues 
originally set apart as germinal. 
As possibly significant we note here the fact that in the 
iimbryonic development of plants the order of the various divi- 
seons is known to be subject to great Variation and it is not 
nconceivable that such disturbances of the order in which the 
