A Contrast in Bulbs
Here is one of Mr. Burbank's improved camassia bulbs, contrasted with the bulb of one of its wild progenitors. It will be seen that the hybrid has attained relatively gigantic size, while holding pretty closely to the general type of its parents. Of course attention is given constantly to the edible qualities of the bulb, no less than to size.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 7 Chapter 8