Richard Kolkwitz [SEP] place of birth
Richard Kolkwitz
Richard Kolkwitz (March 23, 1873 – April 16, 1956) was a German botanist who was a native of Berlin. 
He studied natural sciences at the University of Berlin under Adolf Engler (1844–1930) and Simon Schwendener (1829–1919), and from 1895 to 1900 was an assistant at the university under Leopold Kny (1841–1916). Afterwards, he became a professor of botany in Berlin, and from 1901 until 1938 was also in charge of the Biological Prussian Experimental and Testing Institute for water supply and
leaf's pulvinus, the positioning of a plants' leaves, and the inner-workings between stomata and its guard cells.
In 1867 Schwendener announced to the scientific world his hypothesis that lichen was formed by two separate organisms, a fungus and an alga. At the time his theory was largely rejected, but afterwards proven to be factual. During his long career he had several renowned students and assistants, including Carl Correns, Gottlieb Haberlandt, Richard Kolkwitz, Emil Heinricher, Max Westermaier, Georg Volkens and Otto Heinrich Warburg