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Cyril George
Hopkins
UIUC (Chemistry Tree)


Edward Murray
East
Harvard (DevTree)


Edgar
Anderson
Missouri Botanical Garden (DevTree)


Heinrich
Göppert
University of Breslau (Chemistry Tree)


Adolf
Engler
Royal Botanical Gardens and Museums of Berlin (Chemistry Tree)


Jesse More
Greenman
Washington University (Chemistry Tree)


Rollin Thomas
Chamberlin
Chicago (Geotree)

Rollin D.
Salisbury
Chicago (GeograTree)



Henry Chandler
Cowles
Chicago (Marine Ecology Tree)

J Harlen
Bretz
Chicago (Geotree)


Ralph Works
Chaney
UC Berkeley (Geotree)


Edward Lee
Greene
University of California at Berkeley; Smithsonian; Catholic University of America

William Albert
Setchell
UC Berkeley (Systematics Tree)


Willis Linn
Jepson
UC Berkeley


Herbert Louis
Mason
UC Berkeley


Charles B.
Heiser
Indiana University

Barbara
Pickersgill
University of Reading
(Options)


Daniel J.
Gates
University of Nebraska - Lincoln


Nathan
Muchhala
University of Missouri - Saint Louis

Mark
Nesbitt
Royal Botanic Gardens, Kew

Kim A
Walker
Royal Holloway College, University of London (GeograTree)

Barbara PickersgillX