Johann Georg Christian Lehmann was a German botanist.
Born at Haselau, near Uetersen, Holstein, Lehmann studied medicine in Copenhagen and Göttingen, obtained a doctorate in medicine in 1813 and a doctorate in philosophy from the University of... Wikipedia
Born: February 25, 1792, Haselau, Germany
Died: February 12, 1860 (age 67 years), Hamburg, Germany