Ernst Cleveland Abbe

* August 21, 1905 – March 15, 2000 †

United States

Fagaceae

Collected Fagaceae and identified Saxifragaceae

Collected Asteraceae and identified Geraniaceae

Harry E. Ahles

* October 28, 1924 – March 21, 1981 †

United States

Asteraceae

Collected Asteraceae and identified Asteraceae

Collected Cladoniaceae and identified Cladoniaceae

Collected Brassicaceae and identified Brassicaceae

Oakes Ames

* September 26, 1874 – April 28, 1950 †

United States

Orchidaceae

Collected Orchidaceae and identified Orchidaceae

Collected Poaceae and identified Poaceae

Rupert Charles Barneby

* October 06, 1911 – December 05, 2000 †

United Kingdom; United States of America; United Kingdom of Great Britain and Ireland

Fabaceae

Collected Fabaceae and identified Fabaceae

Edwin Bunting Bartram

* July 28, 1878 – December 02, 1964 †

United States

Pottiaceae

Collected Pottiaceae and identified Pottiaceae

Charles Humphrey Bissell

* December 16, 1857 – April 06, 1925 †

United States

Cyperaceae

Collected Cyperaceae and identified Cyperaceae

Hugo Leander Blomquist

* June 05, 1888 – November 28, 1964 †

United States

Sphagnaceae

Collected Sphagnaceae and identified Sphagnaceae

Collected Asteraceae and identified Asteraceae

Frederick King Butters

* 1878 – 1945 †

Poaceae

Collected Poaceae and identified Lamiaceae

Collected Apiaceae and identified Apiaceae

Edward Blanchard Chamberlain
Edward Blanchard Chamberlain

* 1878 – 1925 †

Frullaniaceae

Collected Frullaniaceae and identified Polytrichaceae

William James Cody

* 1922 – December 2009 †

Canada

Poaceae

Collected Poaceae and identified Cyperaceae

James Franklin Collins

* December 29, 1863 – November 14, 1940 †

United States

Dicranaceae

Collected Dicranaceae and identified Cyperaceae

Donovan Stewart Correll

* April 13, 1908 – March 28, 1983 †

United States

Asteraceae

Collected Asteraceae and identified Orchidaceae

Howard Alvin Crum

* July 14, 1922 – April 30, 2002 †

United States

Pottiaceae

Collected Pottiaceae and identified Sphagnaceae

Henry Townsend Darlington

* 1875 – 1964 †

Onagraceae

Collected Onagraceae and identified Onagraceae

Werner Dietrich

* 1938 – February 01, 2011 †

Asteraceae

Collected Asteraceae and identified Onagraceae

Carroll William Dodge

* January 20, 1895 – July 21, 1988 †

United States

Cyperaceae

Collected Cyperaceae and identified Parmeliaceae

Elizabeth Maria Dunham

* August 22, 1872 – 1966 †

United States

Dicranaceae

Collected Dicranaceae and identified Dicranaceae

Arthur Johnson Eames

* 1881 – February 12, 1969 †

United States

Urticaceae

Collected Urticaceae and identified Urticaceae

Alvah Augustus Eaton

* 1865 – 1908 †

United States

Orchidaceae

Collected Orchidaceae and identified Equisetaceae

Reidar Elven

Norway

Poaceae

Collected Poaceae and identified Poaceae

David E. Fairbrothers

* 1925 – 2012 †

United States

Magnoliaceae

Collected Magnoliaceae and identified Poaceae

Norman Carter Fassett

* 1900 – 1954 †

United States

Poaceae

Collected Poaceae and identified Polygonaceae

Mark Fishbein
Mark Fishbein

United States

Apocynaceae

Collected Apocynaceae and identified Apocynaceae

John Milton Fogg, Jr.

* November 08, 1898 – October 12, 1982 †

Cyperaceae

Collected Cyperaceae and identified Cyperaceae