semi-tunicate, soft glumes. Tripsacoid cobs, such as those we 
would ascribe to the result of hybridization of corn with either 
teosinte or Tripsacum, simply do not appear in the Huarmey 
collection. 
The Huarmey maize bears an interestingly close resem- 
blance to the Confite Morocho maize obtained by MacNeish et 
al. (1970 p. 38), from the Ayacucho, Peru caves that he 
explored, and which was dated as circa 4300 to 2800 B.C. In all 
respects it also coincides with segregants described by Grob- 
man ef al. (1962) as Confite Morocho, from the Los Cerrillos 
site in Ica. 
There are two exceptional cobs, one of which is illustrated in 
Plate 46A. This cob occurred in level 3. It is thick and tapering 
and has 14 kernel rows. It is quite similar to the predominating 
corn from the Huaca Prieta site described later. 
Plates 45 and 46 illustrate the variation in the cobs from the 
lower to the upper levels of this site. The range in size is by no 
means as great as it is in the prehistoric cobs from the several 
caves in Mexico and the southwestern United States. This may 
indicate that a shorter span of time is involved or it may suggest 
that in the absence of contamination by teosinte or Tripsacum 
the rate of evolution is less rapid. 
KERNELS: Only ten kernels were found. Several of these 
were immature and one was defective. The pericarp color in all 
kernels in which it could be determined was brown. The kernel 
shape, where it could be determined, was slightly pointed, 
(Fig. 1). Some ears of the Peruvian race Confite Morocho have 
kernels of this shape (Grobman et al., 1961, Fig. 48). 
Fig. 1. Enlarged diagram (2X) showing the shape of a 
kernel found in level 2. The shape is typical of the kernels of some 
ears of the Peruvian popcorn race Confite Morocho. All of the 
kernels found in this site have a brown pericarp color. 
ROOTS AND STALKS: Five pieces of stalks with attached roots 
show mainly that the root system of prehistoric maize is virtu- 
ally identical with that of modern maize. Diameters of the first 
internode above the root in the five specimens were 10.6, 4.3, 
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