Wilhelm Daniel Joseph Koch
German physician and botanist (1771–1849) / From Wikipedia, the free encyclopedia
Wilhelm Daniel Joseph Koch (5 March 1771 – 14 November 1849) was a German physician and botanist from Kusel, which at various points in his life was under the Holy Roman Empire, part of France and then part of the Kingdom of Bavaria.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/c/c1/Prof-Koch.jpg)