Mohammad Pessarakli
A. Zimmermann
Robinson, Richard W.
N. C. Seringe
Rebecca Grumet
Ralf Norrman
Annabelle Maffioli
Alfred Cogniaux
Jørn Gry
Flora of North America Editorial Committee
Augustin Pyramus de Candolle
John Kunkel Small
Shiu-ying Hu
D. P. Penhallow