Bu'. 100, Bureau of Er.tanidlogy, U. S. Dept. of Agriculture. 



Plate I. 



Shedding and Retention of Forms on the Cotton Plant. 



Fis. l.—a. b, c. Normal sciira left by shed forms. Fig. 2.— o. b. r, Abnormal scars witli forms 

 retained. Fig. :!.— a. Longitudinal section through base of .shed form; b, Lonpittidinal 

 section throufjh base of retained form. Fig. 1, natural size; fig. 'J, somewhat reduced- 

 iig. 3, enlarged two diameters. (After Hinds.) 



