420 
AMERICAN JOURNAL OF BOTANY 
[Vol. 8 
the male parent. No case of aberrant corneous-waxy endosperm was 
observed, but there is no satisfactory evidence that none occurred among 
the wholly colored seeds, where waxy spots would be easily overlooked. 
Similarly, in table 3 are recorded all available cases in which starchy 
and sugary endosperm, Su su, are involved together with the aleurone-factor 
pairs C c, R r, and Pr pr. The male parents of all these crosses had 
homozygous starchy endosperm and homozygous purple aleurone, A C R 
Table 3. Aberrant seeds of maize from crosses of colorless sugary, c su and r su, by colored 
starchy, C R Su, and of red sugary, pr su, by purple starchy, Pr Su 
Group 
Genes 
Pedigree 
Approximate 
Concerned 
No. of 9 
Number of 
Parent 
Normal Seeds 
Number of Aberrant Seeds 
All Starchy, 
Colored and 
Colorless 
All Colored, 
Starchy and 
Sugary 
9063— I 
260 
I 
3 
240 
I 
A 
H- 
2 
c 
0 
T70 
I 
I 
7 
510 
10178^ 2 
320 
2 
1 
0 
290 
A 
nr 
410 
2 
I 
2Q0 
I 
6 
370 
2 
6 
220 
I 
10179- I 
420 
T 
2 
360 
4 
250 
I 
5 
380 
6 
430 
3 
6 
440 
I 
5 ears 
1,750 
0 
0 
Total .... 
22 ears 
7,430 
20 
5 
2 
r SU X R Su . . 
8572- I 
190 
10185- I 
420 
; 
2 
2 
320 
4 
400 
2 
I 
5 
390 
I 
6 
380 
I 
7 
290 
2 
7 
440 
I 
10 
360 
2 
2 
7 ears 
2,720 
0 
0 
Total 
16 ears 
5.910 
13 
6 
All Starchy, 
All Purple, 
Purple and 
Starchy and 
Red 
Sugary 
3 
pr su X Pr Su 
lOiSo- I 
360 
I 
5 
260 
I 
7 
220 
5 ears 
710 
0 
Total .... 
8 ears 
1,550 
I 
2 
