| Edward J. Alexander |
Algae; Spermatophytes; Iridaceae |
| Miguel N. Alexiades |
Spermatophytes; Ethnobotanical studies |
| Harry A. Allard |
Spermatophytes; Bryophytes |
| John F. Allen |
Spermatophytes |
| John Alphaeus Allen |
Algae; Bryophytes; Spermatophytes |
| Timothy F. Allen |
Algae; Characeae; Spermatophytes |
| Oscar Dana Allen |
Algae; Characeae; Bryophytes; Spermatophytes |
| Gladys P. Anderson |
Lichens; Spermatophytes; Bryophytes |
| William Russell Anderson |
Spermatophytes; Pteridophytes; Malpighiaceae; Lichens |
| Carol R. Annable |
Poaceae; Spermatophytes |
| Kate E. Armstrong |
Manilkara (Sapotaceae); Pteridophytes; Spermatophytes |
| Daniel E. Atha |
Spermatophytes; Pteridophytes; Polygonaceae; Acalypha; Flora of North America |
| Nephi Duane Atwood |
Spermatophytes; Hydrophyllaceae; Phacelia |
| Coe F. Austin |
Bryophytes; Lemnaceae; Spermatophytes; Lichens |
| Charles F. Baker |
Algae; Mycology; Spermatophytes; Bryophytes |
| William L. Balée |
Spermatophytes; Ethnobotanical studies |
| Michael J. Balick |
Spermatophytes; Economic Botany |
| Miguel Bang |
Spermatophytes; Bryophytes; Lichens |
| Howard J. Banker |
Algae; Mycology; Spermatophytes |
| Rupert C. Barneby |
Spermatophytes; Fabaceae |
| John H. Barnhart |
Spermatophytes; Bryophytes |
| Joseph Barratt |
Spermatophytes; Salix; Bryophytes |
| A. T. Beals |
Mosses; Spermatophytes; Bryophytes |
| Janice C. Beatley |
Spermatophytes |
| Albert R. Bechtel |
Spermatophytes; Mycology; Bryophytes |
| Hans T. Beck |
Spermatophytes; Sapindaceae; Paullinia; floristics of northwestern Ecuador, southern Africa, and upper midwestern U.S.; economic botany; ethnobotany |
| Romeu P. Belém |
Spermatophytes |
| Bradley C. Bennett |
Spermatophytes; Ethnobotany |
| Alwin Berger |
Spermatophytes; Agave |
| George N. Best |
Bryophytes; Spermatophytes |
| Eugene P. Bicknell |
Spermatophytes; Characeae; Bryophytes |
| Jacques S. Blanchet |
Spermatophytes |
| Henry N. Bolander |
Algae; Bryophytes; Cryptogams; Musci; Orchidaceae; Phanerogams; Spermatophytes |
| Brian M. Boom |
Spermatophytes; Theaceae; Rubiaceae; Bryophytes; Lichens |
| Nathaniel Lord Britton |
Algae; Bryophytes; Lichens; Mycology; Phanerogams; Pteridophytes; Spermatophytes |
| Elizabeth G. Britton |
Algae; Bryophytes; Pteridophytes; Spermatophytes; Lichens |
| William Russel Buck |
Algae; Bryophytes; Fungi; Lichens; Pteridophytes; Spermatophytes |
| William J. Burchell |
Bryophytes; Pteridophytes; Spermatophytes; Orchidaceae |
| Edward S. Burgess |
Pteridophytes; Spermatophytes; Aster |
| Wendell H. Camp |
Spermatophytes; Lichens |
| William M. Canby |
Spermatophytes; Cryptogams; Bryophytes |
| Andre Mauricio Viera de Carvalho |
Spermatophytes; Fabaceae; Dalbergia; Bryophytes |
| Alvan Wentworth Chapman |
Algae; Angiosperms; Bryophytes; Pteridophytes; Spermatophytes |
| John Henry Christ IV |
Spermatophytes |
| Cárlos A. Cid Ferreira |
Spermatophytes; Bryophytes |
| Mary Strong Clemens |
Algae; Bryophytes; Lichens; Mycology; Spermatophytes |
| Frederick E. Clements |
Algae; Mycology; Spermatophytes; Bryophytes |
| Henry S. Conard |
Bryophytes; Spermatophytes |
| John M. Coulter |
Mycology; Spermatophytes |
| Richard S. Cowan |
Spermatophytes; Bryophytes |
| Thomas B. Croat |
Spermatophytes; Araceae; Lichens; Bryophytes |
| Arthur J. Cronquist |
Asteraceae; Spermatophytes |
| Clara E. Cummings |
Mycology; Lichens; Musci; Spermatophytes |
| Douglas Charles Daly |
Spermatophytes; Burseraceae; Loganiaceae; Bryophytes |
| Isa (Irmgard) Degener |
Algae; Plants of Hawaii; Bryophytes; Spermatophytes |
| Otto Degener |
Pteridophytes; Spermatophytes; Flora of Hawaii; Bryophytes; Lichens |
| Piero Giuseppe Delprete |
Spermatophytes; Rubiaceae |
| Herbert M. Denslow |
Spermatophytes; Bryophytes |
| Aris B. Donaldson |
Spermatophytes; Custer's Expedition to the Black Hills |
| William R. Dudley |
Mycology; Spermatophytes; Bryophytes |
| Per K. H. Dusén |
Spermatophytes; Bryophytes; Fossils; Pteridophytes; Lichens |
| Père Antoine Duss |
Mycology; Bryophytes; Spermatophytes |
| Franklin S. Earle |
Algae; Bryophytes; Mycology; Spermatophytes; Lichens |
| George Eiten |
Spermatophytes; Oxalis; Brazilian flora; Bryophytes; Lichens |
| Erik L. Ekman |
Pteridophytes; Spermatophytes; Fungi |
| Adolph D. E. Elmer |
All groups; Pteridophytes; Spermatophytes; Bryophytes; Mycology |
| Bruce Fink |
Algae; Bryophytes; Lichens; Mycology; Spermatophytes |
| Seville Flowers |
Bryophytes; Pteridophytes; Algae; Spermatophytes; Mycology |
| Merton A. Franklin |
Spermatophytes |
| John C. Frémont |
Spermatophytes |
| Theodore C. Frye |
Algae; Pteridophytes; Spermatophytes; Bryophytes; Phanerogams |
| Paul A. Fryxell |
Spermatophytes; Malvaceae; Gossypium |
| Wilson Ganev |
Spermatophytes |
| George Gardner |
Algae; Bryophytes; Pteridophytes; Spermatophytes |
| Albert O. Garrett |
Algae; Mycology; Spermatophytes |