pteridologist

Pteridologists (top level) Fern freaks (1973 fern study group) Pteridólogos de España Liberty Hyde Bailey James Bolton William Dunlop Brackenridge John E. Braggins Nathaniel Lord Britton Douglas Houghton Campbell Élie-Abel Carrière Carl Frederik Albert Christensen Willard Nelson Clute Edwin Copeland Carl Correns Paul Cretzoiu Johann Jacob Dillenius Alvah Augustus Eaton Daniel Cady Eaton George Engelmann Antoine Laurent Apollinaire Fée Adrien René Franchet Elias Magnus Fries Louis Benoît Guersant Joseph Dalton Hooker Karl Koch (botanist) John Claudius Loudon Franz Meyen Thomas Moore (botanist) Frances Theodora Parsons Caspar Georg Carl Reinwardt George Schneider (1848-1917) Margaret Slosson John Smith (botanist) Richard Spruce Armen Takhtajan John Torrey José Jerónimo Triana Rolla M. Tryon Jr. Edward Tuckerman Martin Vahl Nathaniel Wallich Philip Barker Webb Christian Ehrenfried von Weigel Friedrich Welwitsch