Sleumer, Hermann Otto

* February 21, 1906 – October 01, 1993 †

Germany Kingdom of the Netherlands

Identified Ericaceae and collected Ericaceae

de la Sota, Elías Ramón

* September 27, 1932 – January 20, 2014 †

Argentina

Identified Polypodiaceae and collected Dryopteridaceae

Standley, Paul Carpenter

* March 21, 1884 – June 02, 1963 †

United States

Identified Rubiaceae and collected Asteraceae

Steyermark, Julian Alfred

* January 27, 1909 – October 15, 1988 †

United States

Identified Rubiaceae and collected Poaceae

Struwe, Lena

United States

Identified Gentianaceae and collected Gentianaceae

Sydow, Hans

* January 29, 1879 – June 06, 1946 †

Germany

Identified Mycosphaerellaceae and collected Mycosphaerellaceae

Identified Fabaceae and collected Fabaceae

Taubert, Paul Hermann Wilhelm

* August 12, 1862 – January 01, 1897 †

Kingdom of Prussia

Identified Fabaceae and collected Poaceae

Thiede, Joachim

Germany

Identified Aizoaceae and collected Aizoaceae

Identified Lejeuneaceae and collected Lejeuneaceae

Identified Bromeliaceae and collected Bromeliaceae

Turner, Billie Lee

* 1925 – May 27, 2020 †

United States

Identified Asteraceae and collected Asteraceae

de Vattimo-Gil, Ida

* 1928 – 1993 †

Brazil

Identified Lauraceae

Welch, Winona Hazel

* May 05, 1896 – January 18, 1990 †

Identified Fontinalaceae and collected Amblystegiaceae

Wimmer, Franz Elfried

* November 30, 1881 – May 02, 1961 †

Austria-Hungary; Austria

Identified Campanulaceae and collected Salicaceae

Truman G. Yuncker
Yuncker, Truman G.

* March 20, 1891 – January 08, 1964 †

United States

Identified Piperaceae and collected Piperaceae

Zardini, Elsa Matilde

* June 09, 1949 – November 30, 2020 †

Argentina; Paraguay

Identified Onagraceae and collected Asteraceae

Zarucchi, James Lee

* May 26, 1952 – July 21, 2019 †

United States

Identified Apocynaceae and collected Fabaceae

Identified Pteridaceae and collected Asteraceae

Identified Malpighiaceae and collected Malpighiaceae