Part I. Populations: 1. Plants stand still, but their genes don't: non-trivial consequences of the obvious J. Silvertown; 2. Causes and effects of small-scale spatial structure in plant populations R. Law, D. W. Purves, D. J. Murrell and U. Diekmann; 3. Inferences about spatial processes in plant populations from the analysis of molecular markers R. A. Ennos; 4. Mating systems and population genetic structure in the light of coalescent theory D. Charlesworth and J. R. Pannell; 5. Spatially explicit studies on the ecology and genetics of population margins J. Antonovics, T. J. Newman and B. J. Best; 6. The scale of local adaptation in forest plants G. Bell, M. J. Lechowicz and M. Waterway; Part II. Metapopulations: 7. Spatially realistic models of metapopulation dynamics and their implications for ecological, genetic and evolutionary processes I. Hanski; 8. Landscape fragmentation and the viability of plant populations O. Eriksson and J. Ehrlén; 9. The interaction of genetic and demographic processes in plant metapopulations: a case study of Silene alba; D. E. McCauley, C. M. Richards, S. N. Emery, R. A. Smith and J. W. McGlothlin; 10. The demography and genetics of host-pathogen interactions J. J. Burdon and P. H. Thrall; 11. Spatial dynamics of cytoplasmic male sterility S. A. Frank and C. M. Barr; 12. The evolution of seed heteromorphism in a metapopulation: interactions between dispersal and dormancy I. Olivieri; Part III. Geography: 13. Inferring glacial refugia and historical migrations with molecular phylogenies G. M. Hewitt and K. M. Ibrahim; 14. From spatial patterns of genetic diversity to postglacial migration processes in forest trees R. J. Petit, R. Bialozyt, S. Brewer, R. Cheddadi and B. Comps; 15. Comparative phylogeography of northwestern North America: a synthesis S. J. Brunsfeld, J. Sullivan, D. E. Soltis and P. S. Soltis; 16. A geographical context for the evolution of plant reproduction systems S. C. H. Barrett, M. E. Dorken and A. L. Case; 17. Adaptation at the edge of a species' range N. H. Barton; 18. The unified neutral theory of biodiversity and biogeography: a synopsis of the theory and some challenges ahead S. P. Hubbell.