filtration-apparatuses

Updated: April 30, 2025

As the secretion ceased the obvious conclusion to be deduced from this experiment is that the hydathodes do not act as purely mechanical filtration-apparatuses, as one might have thought, but that there is here evidence of an active vital process in the plant; the unusual term "poisoning" is therefore really justified under present circumstances.

Eberhard Dennert - At the Deathbed of Darwinism: A Series of Papers