Color Variation in Seedling Gladioli
Few Plants offer better opportuntites than the gladioli for studies of color variation. The original wild species differ widely in this regard, and their crossbred descendants naturally show striking combinations of colors. Plants grown from a single lot of seeds may show such variation in flower coloration as is here depleted.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 9 Chapter 6