van de weyer k (2 risultati)

Condizione: NEW. 752, 1400 col photos, 358 b/w illus. A4. HB. NEW. . The first comprehensive guide to the aquatic plants of the region. Beneath the surface of bodies of freshwater - springs, streams, rivers, ponds and lakes - there is a world of plants of great variety and beauty, a realm that is often poorly known and understood. Correctly identified, these plants can tell us much about the character and condition of the habitats in which they live. A collaboration of Danish, German, and British field botanists specializing in freshwater plants, this guide presents all of the known aquatic plants of Northern and Central Europe, including Britain and Ireland, as well as many marginal and wetland species.This is the first comprehensive guide to the identification of the region's 410 species and hybrids of both native and non-native ferns and flowering plants that are dependent upon freshwater wetlands. Following the latest taxonomy, the book features 358 plates in pen and ink, more than 1,400 colour photographs, illustrated keys, distribution maps and detailed descriptions. The introduction gives an overview of evolution, anatomy and morphology, ecology, eco-physiology, research traditions and more, and the book also includes guidelines for working with aquatic plants.* The first comprehensive guide to the region's aquatic plants* Covers all 410 known species* Features 358 illustrated plates, more than 1,400 colour photographs, distribution maps, detailed descriptions and much more. [9780691251011].

Condizione: NEW. c.700, 500 col illus, 500 b/w illus. . HB. NEW. . This book covers whole Europe within its geographical limits, providing not only an overview about biogeography and recent taxonomic status of Charophyte species but also in-depth information about recent knowledge about ecology, ontogenesis, morphology, palaeontology and systematics of this group of algae. This is the first comprehensive treatment of European Charophytes. In addition, the reader for the first time is provided by definitions of terms applied to Charophytes, sorting out several previous confusions about terminology. Special attention was paid on oospores in order to exploit their potential for supporting species delineation as well as analysis of sediment records. A red list, dealing also with threats and habitat conditions, completes the book.Altogether more than 70 taxon are described in detail, each of the descriptions giving full information about morphology, habitat conditions, distribution as well as variability; important characters for determination are illustrated by photographs and drawings. Hints for correct determination are given in a separate para, allowing correct species delineation even for critical species. This, together with a set of determination keys, will allow beginners and practitioners to get familiar with the determination of Charophytes, being often regarded notoriously difficult in the past. Authored by a large group of 70 specialists from all over Europe and Overseas, a commonly agreed taxonomy is provided, and all debates about taxonomic status and nomenclatural problems have been discussed beforehand extensively. By this, a sound reference for applied aspects is given, allowing for reliable cross-country comparisons especially with respect to bioindication purposes but also serving ground for biogeographical research, biodiversity issues and the emerging field of elucidating the process of territorialisation of land plants. The authors hope that this book will become the reference work for the coming decades it was designed for. [9783031318979].