seed-samples

Updated: May 18, 2025

Vicinism therefore, may play a part in all such cultures, enough to account for all the impurities observed in the nurseries or in commercial seed-samples. Of course this whole discussion is limited to such species as are not only as a rule visited by insects, but are dependent on these visits for their fertilization. Most of our garden-flowers are included in this category.

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