Bui. 1153, U. S. Dept. of Agriculture 



Plate III 



Fig. I. — Productive Cotton Plant. 



This plant stood apart from but within a few feet of heavily infested boll- weevil 

 cotton and continued to set bolls till the end of the season. 



Fig. 2.— Abnormal Involucres of Boll-Weevil Cotton. 



These forms include narrow funnel-shaped "ascidia." A normal late-season involucre is shown on 

 short secondary branch at the upper left-hand corner. (Natural si 



