|
Universidad Autónoma de Madrid
|
University
|
Spain |
16
|
|
Universidad de Sevilla
|
University
|
Spain |
14
|
|
University of Michigan–Ann Arbor
|
University
|
United States |
8
|
|
Martin Luther University Halle-Wittenberg
|
University
|
Germany |
4
|
|
Washington State University
|
University
|
United States |
4
|
|
Texas A&M University System
|
University
|
United States |
4
|
|
Field Museum of Natural History
|
University
|
United States |
4
|
|
Universidad Rey Juan Carlos
|
University
|
Spain |
3
|
|
Real Jardín Botánico
|
Research Centre
|
Spain |
3
|
|
University of Ottawa
|
University
|
Canada |
3
|
|
Universidad Tecnológica Indoamérica
|
University
|
Ecuador |
3
|
|
Universidad de Almería
|
University
|
Spain |
2
|
|
Charles University in Prague
|
University
|
Czechia |
2
|
|
Ghent University
|
University
|
Belgium |
2
|
|
Universidad de Concepción
|
University
|
Chile |
2
|
|
University of Pisa
|
University
|
Italy |
2
|
|
University of Cape Town
|
University
|
South Africa |
2
|
|
Universidad Nacional Mayor de San Marcos
|
University
|
Peru |
2
|
|
University of Manitoba
|
University
|
Canada |
2
|
|
University of Tokyo
|
University
|
Japan |
2
|
|
University of Colorado Denver
|
University
|
United States |
2
|
|
Universitat Autònoma de Barcelona
|
University
|
Spain |
1
|
|
Universidad Complutense de Madrid
|
University
|
Spain |
1
|
|
Universidad de Jaén
|
University
|
Spain |
1
|
|
Universidad de León
|
University
|
Spain |
1
|
|
Universitat de València
|
University
|
Spain |
1
|
|
Estación Biológica de Doñana
|
Research Centre
|
Spain |
1
|
|
Instituto de Ciencias Agrarias
|
Research Centre
|
Spain |
1
|
|
Junta de Andalucía
|
Other
|
Spain |
1
|
|
Aristotle University of Thessaloniki
|
University
|
Greece |
1
|
|
National and Kapodistrian University of Athens
|
University
|
Greece |
1
|
|
University of Oslo
|
University
|
Norway |
1
|
|
Università di Camerino
|
University
|
Italy |
1
|
|
Johannes Gutenberg University of Mainz
|
University
|
Germany |
1
|
|
Technical University Munich
|
University
|
Germany |
1
|
|
Universidad Austral de Chile
|
University
|
Chile |
1
|
|
University of Amsterdam
|
University
|
Netherlands |
1
|
|
University of Zurich
|
University
|
Switzerland |
1
|
|
Ben-Gurion University of the Negev
|
University
|
Israel |
1
|
|
Bielefeld University
|
University
|
Germany |
1
|
|
Friedrich Schiller University Jena
|
University
|
Germany |
1
|
|
University of Helsinki
|
University
|
Finland |
1
|
|
University of Potsdam
|
University
|
Germany |
1
|
|
University of Sassari
|
University
|
Italy |
1
|
|
Masaryk University
|
University
|
Czechia |
1
|
|
Universidad Nacional de Salta
|
University
|
Argentina |
1
|
|
University of Tirana
|
University
|
Albania |
1
|
|
University of British Columbia
|
University
|
Canada |
1
|
|
Free University of Berlin
|
University
|
Germany |
1
|
|
University of Montreal
|
University
|
Canada |
1
|
|
Universidade da Madeira
|
University
|
Portugal |
1
|
|
Tomsk State University
|
University
|
Russia |
1
|
|
Hangzhou Normal University
|
University
|
China |
1
|
|
University of Chinese Academy of Sciences
|
University
|
China |
1
|
|
Okayama University
|
University
|
Japan |
1
|
|
Universidade Federal da Paraíba
|
University
|
Brazil |
1
|
|
Universidade Federal de Pernambuco
|
University
|
Brazil |
1
|
|
Universidade Federal de Santa Catarina
|
University
|
Brazil |
1
|
|
Instituto Politécnico Nacional
|
University
|
Mexico |
1
|
|
Jungwon University
|
University
|
South Korea |
1
|
|
Russian Academy of Sciences
|
Research Centre
|
Russia |
1
|
