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

Identified Haloragaceae

Oakes Ames

September 26, 1874 – April 28, 1950

United States

Orchidaceae

Collected Orchidaceae and identified Orchidaceae

Albert LeRoy Andrews

December 27, 1878 – November 01, 1961

United States

Sphagnaceae

Collected Sphagnaceae and identified Sphagnaceae

J. Rex Baird

September 22, 1932 – December 13, 2020

United States

Asteraceae

Collected Asteraceae and identified Myricaceae

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

Asteraceae

Collected Asteraceae and identified Pottiaceae

Katherine I. Beamish

? – February 04, 2003

Canada

Asteraceae

Collected Asteraceae and identified Asteraceae

Collected Cyperaceae and identified Cyperaceae

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

Collected Cyperaceae and identified Cyperaceae

R.K. Brummitt

May 22, 1937 – September 18, 2013

United Kingdom

Fabaceae

Collected Fabaceae and identified Convolvulaceae

Frederick King Butters

1878 – 1945

Asteraceae

Collected Asteraceae and identified Lamiaceae

Collected Apiaceae and identified Apiaceae

Collected Dicranaceae 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

Laurie L. Consaul

March 22, 1960 – December 18, 2012

Canada

Poaceae

Collected Poaceae and identified Poaceae

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

Collected Cyperaceae and identified Thuidiaceae

Werner Dietrich

1938 – February 01, 2011

Germany

Asteraceae

Collected Asteraceae and identified Onagraceae

Carroll William Dodge

January 20, 1895 – July 21, 1988

United States

Cyperaceae

Collected Cyperaceae and identified Parmeliaceae