Hohn, Matthew Henry
Holub, Josef Ludwig
Honda, Masaji
Hong, De Yuan
Hoogland, Ruurd Dirk
Hooker, Joseph Dalton
Hooker, William Jackson
Hoot, Sara B.
Hoppe, David Heinrich
Horaninow, Paul (Paulus) Fedorowitsch
Horvat, Ivo
Hosackia Douglas ex Benth.
House, Homer Doliver
Houttuyn, Martinus
Hsiao, Pei Ken
Huber, Jacques
Hudson, William
Humphries, Christopher John
Hunt, David Richard
Hunziker, Armando Theodoro
Hutchinson, John
Huth, Ernst
Hylmö, Bertil
Ietswaart, Jan Hendrik
Ihlenfeldt, Hans-Dieter
Iliff, James
Illarionova, Irina D.
Irmisch, Johann Friedrich Thilo
Irwin, Howard Samuel
Jacobs, Surrey Wilfrid Laurance