Cotton Flower and Seed-Head
The function of cotton fiber is, of course, to protect the seed and to facilitate its distribution. But Nature would scarcely have carried the elaboration of the protective fiber to such a length, had she not been aided by man, who has selected generation after generation among the cotton plants for the ones that produced the best quality of fiber, as gaged by his own needs. The flower is here shown at earlier and later stages of development.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 8 Chapter 4