J. Clemens; Rev. J. Clemens; Rev. Joseph Clemens; Clemens, Joseph (Rev.)
* December 09, 1862 – January 21, 1936 †
botanist
American chaplain, missionary, plant collector & botanist (1862-1936)
https://www.wikidata.org/wiki/Q6282164
United States
* January 03, 1873 – April 13, 1968 †
Collected Orchidaceae and identified Poaceae