The Inheritance of a Somatic Variation in Maize 29 
of the F 1 plants should have red ears and none (or very- 
few), instead of one third, of the F 2 plants should breed 
true. 
The occasional green plants ("a" per cent.) arising 
from variegated branches in Correns 's experiments with 
Mirabilis are more nearly comparable to F x red-eared 
maize plants than are the green plants arising from green 
branches. It is quite conceivable that on a variegated 
branch the male gametes might arise from cells that are 
VG, while the female gametes arise from cells that are 
VV, or the reverse, though this difference between male 
and female gametes would hardly be so common an occur- 
rence as with maize where the staminate and pistillate in- 
florescences are situated so far apart. It is worthy of 
note in this connection that of the occasional green plants 
produced by selfed seed of variegated plants in Correns 's 
experiments with Mirabilis (see diagram, Fig. 2), less 
than one third bred true and more than two thirds segre- 
gated into green and variegated. (Correns indicates this 
merely by the signs < and > in connection with 33 per 
cent, and 66 per cent, respectively, in his diagram, and 
gives no indication of how much less than 33 per cent, 
bred true or how much more than 66 per cent, segregated.) 
De Vries's results with Antirrhinum yield readily to 
the same analysis used with Zea and Mirabilis. Selfed 
seed from striped-flowered branches gave a small per 
cent. — from 2 to 10 — of red-flowered plants. Only a few 
of the red-flowered plants were tested and these were 
found to yield 76 per cent, red to 24 per cent, striped. 
Selfed seed from red-flowered branches of striped-flow- 
ered plants yielded 71 per cent, red-flowered and 29 per 
cent, striped-flowered plants, approximating the 75 per 
cent, and 25 per cent, indicated by Correns 's results with 
Mirabilis: None "of these red-flowered plants bred true, 
but only one test, and that of only a few plants, was made. 
The results were 84 per cent, red-flowered and 16 per cent. 
