Observations on the Inheritance of Characters in Zea Mays. 265 
Summary. 
Upper Ear. 
Lower Ear. 
Number of Plants. 
12 
10 
8 
,1 
3 
3 
3 
3 
6 
1 
0 
4 
8 
1 
Total 33 
The total number of ears producing any given number of rows is as 
follows : — 
The "Arcadia" is a white sugar-maize obtained as a cross between a 
normally 8-rowed Black Mexican " and a white flour corn normally 
bearing a larger number of rows, but it is not known whether either was 
pure bred for row-numbers and no subsequent selection in this line has 
been made. 
It is generally supposed by maize-growers, in this country at any rate, 
that the number of rows is a definite, heritable character. Eesults 
obtained by crossing two other breeds, viz., an 8-row and an 18-row 
(believed to be pure as regards this character) have this year produced 
intermediates in the F.l generation. The case described above seems to 
indicate that the development of rows is within certain limits a vegetative 
character, depending in part on seasonal conditions and on food supply. 
This view is strengthened by the fact that this is the first year in which I 
Eows. 
Ears. 
8 
10 
12 
14 
11 
23 
30 
2 
Total 66 
