breeding-experiments

Updated: May 12, 2025

Rays of the umbels of umbelliferous plants may grow together and become united in groups of two or more, and in the same way the fruits of the composites may be united into groups. Many other instances could easily be given. If we select some of these anomalies for breeding-experiments, our results will not agree throughout, but will tend to group themselves under two heads.

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