floristic

Updated: May 24, 2025

Recalling the results of the last lecture, we see that the species of the systematists are not in reality units, though in the ordinary course of floristic studies they may, as a rule, seem to be so. In some cases representatives of the same species from different countries or regions, when compared with one another do not exactly agree.

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