Reinhard Gustav Paul Knuth; R. Knuth; Dr. R. Knuth
November 17, 1874 – February 25, 1957
botanist, teacher, biologist, professor
German botanist (1874-1957)
http://www.wikidata.org/entity/Q7310335
https://en.wikipedia.org/wiki/Reinhard_Gustav_Paul_Knuth [View]
Germany
Belgium