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Karen S.
Renzaglia
SIU Carbondale (Anatomy Tree)
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Dale H.
Vitt
SIU Carbondale


Thomas Edwin
Melchert
University of Iowa (Systematics Tree)


Daniel J.
Crawford
University of Kansas (Evolution Tree)


Randall J.
Bayer
University of Memphis (Plant Biology Tree)


Bernard
Goffinet
University of Connecticut

Juan Carlos
Villarreal A.
Laval University
(Options)

Juan Villarreal A.X