James M. Macoun
Pierre Verger
Frans Antonie Stafleu
K. M. Matthew
Joseph Lanjouw
International Association for Plant Taxonomy
Helen Humphreys
Druce, George Claridge
John H. Beaman
I. Hettie Vegter
André Michaux
Teodoro Caruel
Zbigniew Mirek
Barbara M. Thiers
Josef Ujčík
Fabio Taffetani
Bernard Boivin
Domitilla Dardi
H. B. Fielding