The picture shows color variation in one of Mr. Burbank's hybrid camassias. Mr. Burbank intends to retain and accentuate the good flowering qualities of the camassia, even while giving especial attention to its bulb. This makes the process of selection somewhat complicated, but it presents no insuperable difficulties, as the reader who has followed Mr. Burbank's experiments in other fields is aware.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 7 Chapter 8