Massed on the Stem
Contrast the gladioli in this picture with the isolated blossom shown in the preceding one. In the present case, selection has been carried out with an eye to improvement all along the line, but notably with the thought of producing bunches of gladioli that are solid masses of flowers. In many of these improved varieties, the flowers grow in a spiral about the stem, and make a solid mass of blossoms, as here shown.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 9 Chapter 6