Arthur Hugh Garfit Alston
September 04, 1902 – March 17, 1958
United Kingdom; United Kingdom of Great Britain and Ireland

Collected Polypodiaceae and identified Selaginellaceae

Collected Rubiaceae and identified Fabaceae
Collected Rubiaceae and identified Poaceae

Collected Moraceae and identified Moraceae

Collected Ricciaceae and identified Marchantiaceae
Collected Ochnaceae and identified Ochnaceae
Collected Fabaceae and identified Asparagaceae
Collected Araceae and identified Araceae
Collected Amanitaceae and identified Gesneriaceae
Collected Fabaceae and identified Fabaceae
Diane Bridson
United Kingdom

Collected Rubiaceae and identified Rubiaceae
Viktor Ferdinand Brotherus
October 28, 1849 – February 09, 1929
Finland; Grand Principality of Finland; Russian Empire

Collected Bryaceae and identified Pottiaceae
Brian Laurence Burtt
August 27, 1913 – May 30, 2008
United Kingdom; United Kingdom of Great Britain and Ireland

Collected Asteraceae and identified Gesneriaceae
James Byng
Netherlands

Collected Melastomataceae and identified Myrtaceae
Francisco José Cabezas
Spain

Collected Poaceae and identified Commelinaceae

Collected Rubiaceae and identified Rubiaceae
Collected Annonaceae and identified Annonaceae
Maarten J. M. Christenhusz
United Kingdom; Netherlands; Finland; Australia

Collected Solanaceae and identified Plantaginaceae

Collected Orchidaceae and identified Orchidaceae
Collected Annonaceae and identified Annonaceae
Collected Araceae and identified Araceae

Collected Pottiaceae and identified Sphagnaceae
Collected Poaceae and identified Acanthaceae
Collected Rubiaceae and identified Rubiaceae
Steven Dessein
Belgium

Collected Rubiaceae and identified Rubiaceae
Arthur Wallis Exell
May 21, 1901 – January 15, 1993
United Kingdom; United Kingdom of Great Britain and Ireland

Collected Fabaceae and identified Combretaceae
Collected Poaceae and identified Annonaceae

Collected Acanthaceae and identified Ochnaceae
Collected Rubiaceae and identified Rubiaceae
Ib Friis
Denmark

Collected Fabaceae and identified Urticaceae