PLATE VIL 
Memoir 39 
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MATURE CULM, HUSK, AND COB COLOR 
3, dilute purple, type IIIa: 4, 
1, Purple, type Ia; 2, sun red, type Ila; 3, 
brown, type V; 6, 
intensely pigmented form of type Illa; 
type IVa 
(Drawings by Carrie M. Preston) 
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dilute sun red, 
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