Taste III. Test for significance of correlations between Teosinte in- 
trogression and kernel rows, diameter and length for cobs from 
Richards’ Caves. 
Character Correlation d.f. Probability 
Kernel rows * -0.851} 5 <.05 
Diameter 0.075! 6 >.05 
Length 0.859” 14 es a 
* Fasciated cobs 
1 Linear 
? Parabolic curvilinear 
Taste IV. Certain internal characters for samples of 14 intact cobs 
from various levels of teosinte introgression in Richards’ Caves 
maize. 
~ 1 py 33 2 Cupule Glume Rachis "GR 
Introgression” Pilosity width(mm.) Length (mm.) Diameter(mm.) Ratio 
2 5.0 70 3.0 10 .30 
3 4.3 7.3 4.0 11 .36 
4(long)® 2.3 9.7 4.2 15 28 
4(short)* 1.8 9.1 4.2 10 42 
1 Grade-5 is most tripsacoid 
? Grade-5 shows strongest pubescence 
3 Av. length 13.5 em. 
* Av. length 4.0 cm. 
Taste V. Frequency and average dimensions (mm.) of various types 
of caryopses from Richards’ Caves. 
Type Frequency Length Width Thickness 
Flour — Y 14 8.0 8.5 6.1 
Flour - P 4 12 8.5 5.5 
Flint - Y 121 Tis 8.5 5.7 
Flint — P 1 8.0 9.0 5.8 
Immature 100 ne a mr 
Y — yellow endosperm, colorless pericarp 
P — red pericarp 
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