Plant Diversity and Evolution Genotypic and Phenotypic Variation in Higher Plants -- Contents -- Contributors -- 1. Importance of plant diversity -- 2. Relationships between the families of flowering plants -- 3. Diversity and evolution of gymnosperms -- 4. Chloroplast genomes of plants -- 5. The mitochondrial genome of higher plants: a target for natural adaptation -- 6. Reticulate evolution in higher plants -- 7. Polyploidy and evolution in plants -- 8. Crucifer evolution in the post-genomic era -- 9. Genetic variation in plant populations: assessing cause and pattern -- 10. Evolution of the flower -- 11. Diversity in plant cell walls -- 12. Diversity in secondary metabolism in plants -- 13 Ecological importance of species diversity -- 14. Genomic diversity in nature and domestication -- 15. Conserving genetic diversity in plants of environmental, social or economic importance -- Index.