| Edward J. Alexander |
Algae; Spermatophytes; Iridaceae |
| John Alphaeus Allen |
Algae; Bryophytes; Spermatophytes |
| Timothy F. Allen |
Algae; Characeae; Spermatophytes |
| Oscar Dana Allen |
Algae; Characeae; Bryophytes; Spermatophytes |
| Dr. Charles L. Anderson |
Algae |
| Charles F. Baker |
Algae; Mycology; Spermatophytes; Bryophytes |
| Howard J. Banker |
Algae; Mycology; Spermatophytes |
| Henry N. Bolander |
Algae; Bryophytes; Cryptogams; Musci; Orchidaceae; Phanerogams; Spermatophytes |
| Ruth O. S. Breen |
Algae; Bryophytes |
| 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 |
| Alvan Wentworth Chapman |
Algae; Angiosperms; Bryophytes; Pteridophytes; Spermatophytes |
| Mary Strong Clemens |
Algae; Bryophytes; Lichens; Mycology; Spermatophytes |
| Frederick E. Clements |
Algae; Mycology; Spermatophytes; Bryophytes |
| Frank S. Collins |
Algae |
| Isa (Irmgard) Degener |
Algae; Plants of Hawaii; Bryophytes; Spermatophytes |
| Franklin S. Earle |
Algae; Bryophytes; Mycology; Spermatophytes; Lichens |
| Bruce Fink |
Algae; Bryophytes; Lichens; Mycology; Spermatophytes |
| Seville Flowers |
Bryophytes; Pteridophytes; Algae; Spermatophytes; Mycology |
| Theodore C. Frye |
Algae; Pteridophytes; Spermatophytes; Bryophytes; Phanerogams |
| George Gardner |
Algae; Bryophytes; Pteridophytes; Spermatophytes |
| Albert O. Garrett |
Algae; Mycology; Spermatophytes |
| Leland J. Gier |
Algae; Bryophytes; Cryptogams; Phanerogams |
| Robert Hagelstein |
Algae; Mycology; Myxomycetes; Bryophytes |