and-varieties

Updated: June 28, 2025

The first double petunia is known to have suddenly and accidentally arisen from ordinary seed in a private garden at Lyons about 1855. From this one plant all double races and-varieties have been derived by natural and partly by artificial crosses. Carriere, who reported this fact, added that likewise other species were known at that time to produce new double varieties rapidly.

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