Corn Tassels Bearing Kernels
Among the most interesting of Mr. Burbank's experiments with corn are those in which the tassel of the corn, which in the cultivated plant bears pollen only, has been induced to develop pistillate flowers and seeds. This is a reversion to the ancestral form in which the seeds were borne at the tip of the stalk, as is still the case with most other grasses.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 3 Chapter 1