Bui. 1154, U. S. Depc. of Agriculture. 
Plate VIM 
Calyx, Staminal Column, and Stigmas of the Parental and Hybrid 
Cotton Plants. 
Fig. 1.— The Holdon parent, showing the dentate calvx with few and scattered oil glands, 
the long filaments and pale-colored anthers, and the short stigmas. Fig. 2.— The first- 
generation hybrid, showing an intermediate condition in the dentation and abundance ol 
oil glands of the calyx and in the color of the anthers, but resembling Holdon in the Length 
of the filaments and Pima in the length of the stigmas. Fig. 3.— The Pima oarent, showing 
the entire-margined calvx with numerous oil glands, short filaments, deeply colored anthers, 
and long stigmas. Figs. 4 to 15.— Second-generation hybrid individuals, showing range of 
variation as follows: 4 and 5, Calyx glands few and many; 6 and 7, calyx margin entire and 
deeply toothed; 8 and 9, stamens few and many (fig. 8 sho.vs also malformation of the 
staminal column, abortion of most of the anthers, and a bent pistil); 10 and 11, filaments 
short and long: 12 and 13, anthers light and dark (deep yellow;: 14 and 1">, stigmas short 
(not exceeding the stamens; and long. Two-thirds natural sifce. 
