From the point of view of plant geography, including various aspects of chorology, one of the prerequisites of successful large-scale synthesis of this type is and adequate flora covering the area in question, and providing a common language in respect to the delimitation and nomenclature of the taxa to be treated. This essential conditon is now fulfilled for Europe by the current volumes of Flora Europaeae. This new series of compendium atlas volumes makes available allthe distribution maps so far produced by the commitee for mapping the flora of Europe in convenient library editons and in the format and livery of Flora Europaeae. A thirds volume containing the caryophllacaeae is in preparation.

This series fulfills the urgent need for the synthesis, at the international or continental level, of the taxonomic and geobotanical information scattered throughout the world in innumerable herbaria and botanical papers. These volumes provide all the distribution maps so far produced by the Committee for mapping the flora of Europe in convenient library editions and in the format and livery of Flora Europaea. They thus form an essential reference linked to the flora itself, and will be invaluable to professional botanists. Volume III contains the Caryophyllaceae (Flora Europaea family).

This fourth volume is a revision of the seventh edition of Willis, with substantial amendments and additions.

Explores the synthesis of the national and regional Floras of Europe and the fifth and final volume covers the Monocotyledons.

This volume is an integrated overview and synthesis of available data relating to the Quaternary evolution of the River Trent. It provides detailed descriptions of the Pleistocene sedimentary records from the Trent, its tributaries and related drainage systems - a sedimentary record that spans a period of approximately half a million years - and the biostratigraphical and archaeological material preserved therein. Significant new data are presented from recently discovered sites of geological and archaeological importance, including previously unrecognised fluvial deposits, as well as novel analyses, such as mathematical modelling of fluvial incision as recorded by the river terrace deposits. In combination with a thorough review of the literature on the Trent, these new data have contributed to revised chronostratigraphical and palaeogeographical frameworks for central England and revealed the complexity of the Pleistocene fluvial and glacial records in this region. The fragmentary Trent terrace sequence is an important element of wider reconstructions of Pleistocene palaeodrainage in Britain, providing a link between the records preserved in the English Midlands and those in East Anglia.

The United Nations Conference on the Environment and Development (UNCED), held in Rio de Janeiro in 1992, spawned a multitude of pro grammes aimed at assessing, managing and conserving the earth's biological diversity. One important issue addressed at the conference was the mountain environment. A specific feature of high mountains is the so-called alpine zone, i. e. the treeless regions at the uppermost reaches. Though covering only a very small proportion of the land surface, the alpine zone contains a rela tively large number of plants, animals, fungi and microbes which are specifi cally adapted to cold environments. This zone contributes fundamentally to the planet's biodiversity and provides many resources for mountain dwelling as well as lowland people. However, rapid and largely man-made changes are affecting mountain ecosystems, such as soil erosion, losses of habitat and genetic diversity, and climate change, all of which have to be addressed. As stated in the European Community Biodiversity Strategy, "the global scale of biodiversity reduction or losses and the interdependence of different species and ecosystems across national borders demands concerted international action". Managing biodiversity in a rational and sustainable way needs basic knowledge on its qualitative and quantitative aspects at local, regional and global scales. This is particularly true for mountains, which are distributed throughout the world and are indeed hot spots of biodiversity in absolute terms as well as relative to the surrounding lowlands.

This is the first of two volumes on Gentianaceae. Comprising twelve chapters, it centres upon the characterization and ecology of Gentianaceae worldwide, with emphasis on the application of molecular and cytological approaches in relation to taxonomy. The first three chapters consider the classification of the family and review the advances in research since the earlier revision published in 2002, which resulted in the reclassification of some plants and the naming of new genera. The next chapter provides the most comprehensive report to date of the systematics of South American Neotropical woody Gentians. Other reviews include details of the Gentianaceae in Eastern Europe. The key biochemical steps that result in the diversity of Gentian flower colors, the cytology of European species and an historical account of the importance of Gentians in herbal medicines are also covered. Furthermore, an analysis of gene expression in overwintering buds is presented, discussing several aspects of plant taxonomy, phenotypic characteristics, phylogeography and pedigree. Two contributions highlight the importance of Gentians in India, and the last chapter presents evidence for the importance of Glomeromycota in developing arbuscular mycorrhizal associations with the roots of Gentians. This volume provides the basis for the biotechnological approaches that are considered in the companion book The Gentianaceae – Volume 2: Biotechnology and Applications.

An authoritative two-volume overview of the distribution of the wild plants of Great Britain and Ireland Plant Atlas 2020 presents the results of field surveys by the Botanical Society of Britain and Ireland, building on past atlas surveys undertaken by the Botanical Society in the early and late twentieth century. Drawing on the work of thousands of botanists who covered the entirety of Britain and Ireland between 2000 and 2019, this two-volume book features introductory chapters that provide a detailed assessment of the changes to the region’s flora over the past hundred years. Distribution maps and accompanying text and graphics display the phenology, altitudinal range, and time-series trends for 2,616 native and alien species and 247 hybrids. With more than 30 million records gathered during the project, Plant Atlas 2020 will serve as an essential resource for the study and conservation of these wild plants and their vitally important habitats for decades to come. The most in-depth survey of British and Irish flora ever undertaken, based on more than 30 million individual records Covers 2,616 native and alien species and 247 hybrids Features a wealth of distribution maps and infographics, accompanied by informative text A must-have reference book for botanists, field naturalists, conservation organizations, government agencies, and anyone interested in the diverse plant life of Great Britain and Ireland