allele in this series. Crosses of Chapalote with sugary 
endosperm, sz, on the fourth chromosome, show link- 
age between Su and prominent glumes (Mangelsdorf, 
1953). The resemblance of Nal-Tel and Chapalote, con- 
sidered with the evidence on linkage of long glumes and 
starchy endosperm in Chapalote, would suggest that the 
prominent glumes of Nal-Tel involve one of the inter- 
mediate alleles in the T'w-tw series. 
The Husks 
The collection contained 56 well-preserved specimens 
of husks, some representing only a single sheath, others 
the entire husk covering still attached to the shank. 
Flag Leaves and Ligules: Husks, which in modern 
maize surround and usually tightly enclose the ear, are 
modified leaf sheaths, sometimes with reduced blades, 
called ‘‘flag leaves,’’ attached and a recognizable ligule at 
the point of attachment. Of nine completely intact husks 
in this collection, not one had either a ‘‘flag leaf’’ or a 
ligule. 
Relative Length: The husks are rather uniform in 
length. ‘Twenty-one specimens are intact, or almost 
so, with respect to length, and these are much longer 
than the cobs occurring in the same zones. The length 
of intact husks and cobs is compared in Table IV. The 
husks, which average 140 mm. in length, are 2.3 times 
as long as the corresponding cobs which average 60 mm. 
In making these comparisons, only cobs of Early and 
modern Nal-Tel and only husks with definite parallel 
venation have been included. Specimens from zone B 
indicate that these types of ears and husks are associated. 
Mangelsdorf and Smith (1949), studying archaeologi- 
cal remains of husks from Bat Cave, concluded that the 
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