petalomany

Updated: May 29, 2025

Individual specimens may occur, which cannot produce any seed, but then others of the same lot may be as fertile as can be desired. As a whole, such double varieties are regularly propagated by seed. Petalomany is the tendency of the axis of some flowers never to make any stamens or pistils, not even in altered or rudimentary form.

Hugo de Vries - Species and Varieties, Their Origin by Mutation

Before looking closer into the hereditary peculiarities of this old and interesting ever-sporting variety, it may be as well to give a short description of the plants with double flowers. Generally speaking there are two principal types of doubles. One is by the conversion of stamens into petals, and the other is an anomaly, known under the name of petalomany.

Hugo de Vries - Species and Varieties, Their Origin by Mutation