Joseph Dalton Hooker
Hooker, Joseph Dalton

(b. June 30, 1817 – d. December 10, 1911)

United Kingdom of Great Britain and Ireland

Identified Rubiaceae and collected Poaceae

Theodor Kotschy
Kotschy, Theodor

(b. April 15, 1813 – d. June 11, 1866)

Austria

Identified Lamiaceae and collected Asteraceae

Carl Peter Thunberg
Thunberg, Carl Peter

(b. November 11, 1743 – d. August 08, 1828)

Sweden

Identified Meloidae and collected Asteraceae

Nathaniel Wallich
Wallich, Nathaniel

(b. January 28, 1786 – d. April 28, 1854)

Denmark

Identified Lamiaceae and collected Asteraceae