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Monographie, Cycadaceae.
Life in Stone is the first book to focus on British Columbia's fossils. Each of its chapters is written by a specialist for a general audience, and each is devoted to a separate fossil group that is particularly well represented in the province. Richly illustrated with photographs and drawings, Life in Stone will provide fascinating reading for anyone interested in learning more about the animals and plants that inhabited British Columbia during prehistoric times.
Cycads superficially resemble palms and are often misidentified as such. However, cycads are actually a unique assemblage of primitive plants that have been around for at least 250 million years. They have become highly sought after for gardens, both private and public, and their present status as endangered plants has engendered an upsurge of interest in their conservation. With Cycads of the World, David Jones has achieved that difficult task of writing a scientifically accurate text, which is both easy to read and to understand. For this second edition David Jones has added information covering over 100 new species and subspecies of cycads, and updated his material on the 200 species from the first edition. Each entry includes a full description, distribution and habitat information, and a detailed cultivation and propagation guide. Over 360 color photographs plus many other illustrations and maps facilitate easy identification for all living species. This second edition of Cycads of the World makes a fine addition to the library of anyone interested in exotic plants, including gardeners, landscape architects, horticulturalists, botanists, and the curious reader alike.
Published in 1931 for non-specialist readers, this engaging book explains what plant fossils can tell us about prehistoric times.
Now published by Academic Press and revised from the author's previous Five Kingdoms Third edition, this extraordinary, all inclusive catalogue of the world's living organisms describes the diversity of the major groups, or phyla, of nature's most inclusive taxa. Developed after consultation with specialists, this modern classification scheme is consistent both with the fossil record and with recent molecular, morphological and metabolic data. Generously illustrated, now in full color, Kingdoms and Domains is remarkably easy to read. It accesses the full range of life forms that still inhabit our planet and logically and explicitly classifies them according to their evolutionary relationships. Definitive characteristics of each phylum are professionally described in ways that, unlike most scientific literature, profoundly respect the needs of educators, students and nature lovers. This work is meant to be of interest to all evolutionists as well as to conservationists, ecologists, genomicists, geographers, microbiologists, museum curators, oceanographers, paleontologists and especially nature lovers whether artists, gardeners or environmental activists.Kingdoms and Domains is a unique and indispensable reference for anyone intrigued by a planetary phenomenon: the spectacular diversity of life, both microscopic and macroscopic, as we know it only on Earth today. - New Foreword by Edward O. Wilson - The latest concepts of molecular systematics, symbiogenesis, and the evolutionary importance of microbes - Newly expanded chapter openings that define each kingdom and place its members in context in geological time and ecological space - Definitions of terms in the glossary and throughout the book - Ecostrips, illustrations that place organisms in their most likely environments such as deep sea vents, tropical forests, deserts or hot sulfur springs - A new table that compares features of the most inclusive taxa - Application of a logical, authoritative, inclusive and coherent overall classification scheme based on evolutionary principles
There are almost one third of a million species of plants which range in form from unicellular algae a few microns in diameter to gigantic trees that can grow to a height of 100 meters. Plant Life makes sense of the bewildering diversity of plants by treating them not just as photosynthetic factories, but as living organisms that are the survivors of millions of years of evolutionary struggle. The book examines plants from an evolutionary perspective to show how such a wide range of life forms has evolved and continues to thrive. The book is divided into three main sections. The first introductory section sets out the necessary background of evolutionary and taxonomic theory and introduces a classification of living plants based on the ways in which they have evolved. The second part investigates how the challenges of life in the water and on land have led to the evolution of the major taxonomic groups of the plants, and describes the key adaptations that have contributed to the success of each group. The final section shows how the contrasting environments of the world's major climatic zones have led to the evolution of such different floras as those of tropical rainforests, prairies and deserts. This section introduces a fascinating range of plants with ingenious and often bizarre methods of survival and reproduction. The book is enriched by detailed case studies, points for discussion and suggestions for further investigation. In addition, extensive color plates and line drawings bring the world of plants vividly to life. Clear classification charts and a full glossary are also useful. Plant Life is an essential elementary text for undergraduate students and should prove a breath of fresh air for jaded botanists who are accustomed to the traditional taxonomic grind through the plant kingdom. New, environmental approach in keeping with modern course content. Beautifully written in a clear, concise and accessible style. Extensive colour plates, electron micrographs and line drawings bring the world of plants vividly to life. Uses carefully chosen examples of species in each group, so that students are not overwhelmed with excessive information and species lists. Discussion questions at the end of chapters encourages further reading and provides essay topics for teachers. Clear classification charts and a full glossary provide useful material for revision.