Fakultät für Biologie, University of Duisburg-Essen, Essen, Germany

Department of Biodiversity and Environmental Management, Universidad de León, León, Spain

Centre for Ecological Research, Institute of Aquatic Ecology (IAE), Budapest, Hungary

Biological, Geological and Environmental Sciences Department – BiGeA, Alma Mater Studiorum Università di Bologna

Department of Natural Sciences, National Museum of Wales, Cardiff, United Kingdom

Faculty of Biology, Institute of Botany and Botanical Garden, ‘Jevremovac‘, University of Belgrade, Belgrade, Serbia

Botanischer Garten und Botanisches Museum Berlin, Germany

Department of Paleontology,Stratigraphy and Sedimentology, Geological Institute, Bulgarian Academy of Sciences

French National Institute for Agriculture, Food, and Environment INRAE Thonon-les-Bains, France

Department of Biology, University of Ghent, Ghent, Belgium

Institute of Agriculture and Food Research and Technology (IRTA): Sant Carles de la Rapita, Catalonia, Spain

Research Department, Meise Botanic Garden, Meise, Belgium

Department of Life Sciences, The Natural History Museum, London United Kingdom.