other races of maize, suggests an arrangement which 
could be derived from a shortened or condensed panicle. 
This arrangement leads to two curious situations in num- 
bers of rows of grains. 
Aye hice RT 
Pp 
y, i 
SANUS 
Ficure 4. Arrangement of alicoles on the maize ear. The spikelets 
have been cut away in some of the alicoles and only the bases or 
pedestals left. 
A. Normal arrangement of alicoles. 
a= é ee 
B. Coroico arrangement of alicoles. 
Most unusual is the occurrence of ears with an odd 
number of rows of grains. It is true that ears are occa- 
sionally found in which part of the ear has an odd num- 
ber of rows, but in the one case which was examined, 
an ear of the inbred R4 obtained from Dr. William L. 
Brown, this results from abortion of one of the paired 
grains in some of the alicoles, and an odd number of 
rows of grains is found only on a portion of the ear. On 
some of the Coroico ears there were 9 rows of grains 
[ 274 | 
