PLATE 48 
Plate 48. A. The two outer husks of a husk system from level 4 illumi- 
nated from below to show the prominent parallel venation associated with a 
tendency for strong veins to alternate with weaker ones. Actual size. B. A 
prophyll and successive husks from an undeveloped second ear on a stalk 
from level 2. Note the prominent keels of the prophyll and the fact that the 
two outer husks are thicker than the inner ones suggesting a degree of 
differentiation. Actual size. 
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