field-researches

Updated: May 15, 2025

For myself I have based my field-researches and my testing of native plants on the hypothesis of unit-characters as deduced from Darwin's Pangenesis. This conception led to the expectation of two different kinds of variability, one slow and one sudden. The sudden ones known at the time were considered as sports, and seemed limited to retrograde changes, or to cases of minor importance.

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