Author
Tissue Culture Association
4
New York Botanical Garden
2
Society for In Vitro Biology
2
Agassiz Association. Sullivant Moss Chapter
1
American Bryological Society
1
Arnold Arboretum
1
Botanický ústav (Československá akademie věd)
1
Botanický ústav AV ČR
1
Botanischer Garten und Botanisches Museum (Berlin, Germany)
1
Ecological Society of America
1
International Association for Vegetation Science
1
Jardin botanique de l'Etat (Belgium)
1
Jardin botanique national de Belgique
1
Jardin botanique national de Belgique/National Botanic Garden of Belgium
1
Kungl. Svenska vetenskapsakademien
1
Nordic Society Oikos
1
Organization for Flora Neotropica
1
Royal Botanic Gardens, Kew
1
Society for Economic Botany (U.S.)
1
Sullivant Moss Society
1