A Selected Night Blooming Careus
This very fine specimen is the result of careful selection by Mr.Burbank, from large numbers of seedlings. The flowers of this variety are nearly nine inches in diameter. They open early in the morning and are completely withered by ten or eleven o'clock. It will be noted that two of the blossoms on the right hand stalk have withered and that they are marked with strings to indicate that their seed is to be saved for future experiments.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 10 Chapter 1