Teuvo Ahti (Finnish Museum of Natural History, Helsinki)
Klaus Ammann (University of Bern - Institute of Plant Sciences, Bern)
Carmen Ascaso Ciria (CSIC-Centro de Ciencias Medioambientales, Madrid)
Martin Bačkor (Institute of Biology and Ecology Pavol Jozef Safarik University)
Eva Barreno Rodriguez (Instituto Cavnilles de Biodiversidad y Biología Evolutiva)
Olindo Bortesi [†] (Torino)
Cristina Branquinho (Centro de Biologia Ambiental Faculdade de Ciências da Universidade de Lisboa)
Dennis H. Brown (Department of Botany The University, Bristol)
Cesare Cislaghi (Istituto di Statistica Medica e Biometria, Milano)
Ana Crespo de Las Casa (Departamento de Biología Vegetal II, Universidad Complutense de Madrid, Madrid)
Carlo Gaggi [†] (Dipartimento di Scienze Ambientali 'G. Sarfatti', Università di Siena)
Jacob Garty (University of Tel Aviv - Department of Plant Sciences, Tel Aviv)
Martin Grube (Institut fur Botanik, Graz)
Josef Hafellner (Institut für Pflanzenwissenschaften, Karl-Franzens-Universität, Graz)
Markus Hauck (Georg-August University of Göttingen, Göttingen)
David L. Hawksworth (Lichen Section, Department of Botany, The Natural History Museum, London)
Rosmarie Honegger (Institut Pflanzenbiologie Cytologie, Zurich)
Peter James [†] (London)
Manfred Jensen (Essen)
Christian Leuckert [†] (Berlin)
Xavier Llimona (Department de Botanica, University of Barcelona)
Paolo Modenesi (Università di Genova - Dipartimento per lo Studio del Territorio e delle sue Risorse Dipteris)
Pier Luigi Nimis (Dipartimento di Scienze della Vita, Università di Trieste)
Rosanna Piervittori (Dipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino)
Stergios A. Pirintsos (University of Crete - Department of Biology, Heraklion)
Josef Poelt [†] (Graz)
William O. Purvis (Natural History Museum, London)
Leopoldo G. Sancho (Departamento de Biologia Vegetal II, Faculdad de Farmacia - Universidad Complutense, Madrid)
Christoph Scheidegger (Swiss Federal Institute, Forest, Snow and Landscape Research, Birmensdorf)
Felix Schumm (Wangen, Germany)
Mark R.D. Seaward (Bradford)
Sociedad Espanola de Liquenologia (Dept. Biologia Vegetal - Universidad de Barcelona)
Elfie Stocker-Wörgötter (Department of Organismic Biology, University of Salzburg, Salzburg)
Roman Türk (Institut uefr Pflanzenphysiologie, Salzburg)
Antonin Vezda [†] (Bot. Inst. Acad. Sci. Czechosl., Brno)
Orvo Vitikainen (Botanical Museum, University of Helsinki, Finland)
Pat Woseley (Botany Department, The Natural History Museum)
Klaus Ammann (University of Bern - Institute of Plant Sciences, Bern)
Carmen Ascaso Ciria (CSIC-Centro de Ciencias Medioambientales, Madrid)
Martin Bačkor (Institute of Biology and Ecology Pavol Jozef Safarik University)
Eva Barreno Rodriguez (Instituto Cavnilles de Biodiversidad y Biología Evolutiva)
Olindo Bortesi [†] (Torino)
Cristina Branquinho (Centro de Biologia Ambiental Faculdade de Ciências da Universidade de Lisboa)
Dennis H. Brown (Department of Botany The University, Bristol)
Cesare Cislaghi (Istituto di Statistica Medica e Biometria, Milano)
Ana Crespo de Las Casa (Departamento de Biología Vegetal II, Universidad Complutense de Madrid, Madrid)
Carlo Gaggi [†] (Dipartimento di Scienze Ambientali 'G. Sarfatti', Università di Siena)
Jacob Garty (University of Tel Aviv - Department of Plant Sciences, Tel Aviv)
Martin Grube (Institut fur Botanik, Graz)
Josef Hafellner (Institut für Pflanzenwissenschaften, Karl-Franzens-Universität, Graz)
Markus Hauck (Georg-August University of Göttingen, Göttingen)
David L. Hawksworth (Lichen Section, Department of Botany, The Natural History Museum, London)
Rosmarie Honegger (Institut Pflanzenbiologie Cytologie, Zurich)
Peter James [†] (London)
Manfred Jensen (Essen)
Christian Leuckert [†] (Berlin)
Xavier Llimona (Department de Botanica, University of Barcelona)
Paolo Modenesi (Università di Genova - Dipartimento per lo Studio del Territorio e delle sue Risorse Dipteris)
Pier Luigi Nimis (Dipartimento di Scienze della Vita, Università di Trieste)
Rosanna Piervittori (Dipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino)
Stergios A. Pirintsos (University of Crete - Department of Biology, Heraklion)
Josef Poelt [†] (Graz)
William O. Purvis (Natural History Museum, London)
Leopoldo G. Sancho (Departamento de Biologia Vegetal II, Faculdad de Farmacia - Universidad Complutense, Madrid)
Christoph Scheidegger (Swiss Federal Institute, Forest, Snow and Landscape Research, Birmensdorf)
Felix Schumm (Wangen, Germany)
Mark R.D. Seaward (Bradford)
Sociedad Espanola de Liquenologia (Dept. Biologia Vegetal - Universidad de Barcelona)
Elfie Stocker-Wörgötter (Department of Organismic Biology, University of Salzburg, Salzburg)
Roman Türk (Institut uefr Pflanzenphysiologie, Salzburg)
Antonin Vezda [†] (Bot. Inst. Acad. Sci. Czechosl., Brno)
Orvo Vitikainen (Botanical Museum, University of Helsinki, Finland)
Pat Woseley (Botany Department, The Natural History Museum)