Isaac Bayley Balfour
Balfour, Isaac Bayley

* March 31, 1853 – November 30, 1922 †

United Kingdom of Great Britain and Ireland

Collected Asteraceae and identified Ericaceae

Odoardo Beccari
Beccari, Odoardo

* November 16, 1843 – October 25, 1920 †

Kingdom of Italy

Collected Gesneriaceae and identified Arecaceae

Beddome, Richard Henry

* May 11, 1830 – February 23, 1911 †

United Kingdom of Great Britain and Ireland

Collected Orchidaceae and identified Rubiaceae

Brass, Leonard John

* May 17, 1900 – August 29, 1971 †

United States; Australia

Collected Poaceae and identified Fabaceae

Hoogland, Ruurd Dirk

* July 24, 1922 – November 18, 1994 †

Kingdom of the Netherlands

Collected Dilleniaceae and identified Dilleniaceae

Joseph Dalton Hooker
Hooker, Joseph Dalton

* June 30, 1817 – December 10, 1911 †

United Kingdom of Great Britain and Ireland

Collected Poaceae and identified Rubiaceae

Collected Urticaceae and identified Urticaceae

Norkett, Alan Henry

* 1915 – 1990 †

Collected Calymperaceae and identified Fissidentaceae

George Samuel Perrottet
Perrottet, George Samuel

* February 23, 1790 – January 03, 1870 †

France; Switzerland

Collected Fabaceae and identified Acanthaceae

Preuss, Paul Rudolph

* December 12, 1861 – December 19, 1926 †

Germany

Collected Acrididae and identified Anthocerotaceae

Georg August Zenker
Zenker, Georg August

* June 11, 1855 – February 06, 1922 †

Germany; German Empire

Collected Rubiaceae and identified Fabaceae