1. Swiss Federal Research Institute WSL, Zürcherstrasse 111 CH‐8903 Birmensdorf, Switzerland
2. Museu Nacional de História Natural, Jardim Botanico, Rua da Escola Politécnica, 58, 1250‐102 Lisboa, Portugal
3. Stable Flat, Downsland Court, 115 East End Lane, Ditchling, Hassocks, Sussex, BN6 8UR, United Kingdom
4. Dept. of Zoology, University College Dublin, Belfield, Dublin 4, Ireland
5. I de Böde, CH‐6010 Kriens, Switzerland
6. IRD, Centre Ile de France, Universités de Paris VI, VII et XII, 32 Avenue Henri de Varagnat, 93143 Bondy Cedex, France
7. Institute of Ecology and Botany, Hungarian Academy of Sciences, H‐2163 Vacratot, Hungary
8. Engelstr. 5, CH‐8004 Zürich, Switzerland
9. Department of Ecology and Systematics, P.O. Box 65, 00014 University of Helsinki, Finland
10. Department of Botany, Hungarian Natural History Museum, H‐1476 Budapest, Pf. 222, Hungary
11. The Finnish Forest Research Institute,Vantaa Research Centre, Vantaa Unit, PL 18, 01301 Vantaa, Finland
12. FCUL, Centro de Ecologia e Biologia Vegetal, Depto. de Biologia Vegetal, Bloco 2C, Campo Grande, 1749‐016, Lisboa, Portugal
13. Centre for Ecology and Hydrology (CEH), Banchory, Hill of Brathens, Banchory, Aberdeenshire AB31 4BW, Scotland
14. Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense, E‐28040 Madrid, Spain
15. Department of Botany, The Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom