INHERITANCE OF WAXY ENDOSPERM IN MAIZE. 11 
WAXY X HORNY. 
The ears resulting from pollinating the plants grown from the 
waxy seeds of pedigree Nos. 1099 and 1111 with plants grown from 
the horny seeds of these same ears are shown in Table III. Column 
1 of Table III gives the pedigree number of the progeny ear of 
* Dh 234 from which the plants that produced the ears in that section 
of the table were grown. In this same column will be found symbol 
letters which indicate the character of the seeds from which the 
plants that produced the ears in the table were grown. The letters 
W and @ indicate white or colored aleurone. The symbol used for 
waxy endosperm is X and for horny endosperm /Z. 
The symbols given first indicate the charactér of the seeds from 
which the female parent of the ears in the table were grown. For 
Ped S592 /62/ 
Fic. 2.—Diagram showing the relations of ears Nos, 1592, 1621, and 1622. 
example, the first group of five ears which are separated from the 
following ears by a total are the result of crossing plants grown 
from the white waxy (WY) seeds with plants grown from the col- 
ored horny (CZ) seeds of ear No. 1099. In this group the white 
waxy plants were used as the female parents. Column 3 in Table 
III gives the pedigree numbers of the ears representing the recip- 
rocal cross. The classes of seeds produced by the reciprocals are 
found in Table IV. 
There were 11,724 seeds on the 27 ears shown in Table IIJ. The 
expectation of waxy seeds was 50 per cent, and the observed percent- 
age was 49.5. The deviation of 60 seeds is 1.65 times the probable 
error and can, of course, be ascribed to chance. Three ears deviated 
from the expected percentage by more than 8 times the probable error, 
and one ear, No. 1592, showed a deviation above the expectation of 
5.7 times the probable error. 
