Download or read book Gymnosperms of the United States and Canada written by Elray S. Nixon and published by . This book was released on 2010 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a key for the identification of the gymnosperms of the United States and Canada relying as much as possible on stem, leaf and cone characters. Because gymnosperms are usually evergreen, these characters are generally available throughout the year. Illustrations of species and plant characters are included to help with the identification process.
Download or read book Gymnosperm naked seeds plant structure and development written by V.P. Singh and published by Sarup & Sons. This book was released on 2006 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxic Plants of North America written by George E. Burrows and published by John Wiley & Sons. This book was released on 2013-01-29 with total page 1391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toxic Plants of North America, Second Edition is an up-to-date, comprehensive reference for both wild and cultivated toxic plants on the North American continent. In addition to compiling and presenting information about the toxicology and classification of these plants published in the years since the appearance of the first edition, this edition significantly expands coverage of human and wildlife—both free-roaming and captive—intoxications and the roles of secondary compounds and fungal endophytes in plant intoxications. More than 2,700 new literature citations document identification of previously unknown toxicants, mechanisms of intoxication, additional reports of intoxication problems, and significant changes in the classification of plant families and genera and associated changes in plant nomenclature. Toxic Plants of North America, Second Edition is a comprehensive, essential resource for veterinarians, toxicologists, agricultural extension agents, animal scientists, and poison control professionals.
Download or read book Brief History of the Gymnosperms written by John Malcolm Anderson and published by . This book was released on 2007 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a global synthesis of gymnosperm families, fossil and extant, providing a new and distinctive perspective on the macroevolutionary biodiversity trends within this group through their 375 million-year history. The stratigraphic ranges of the 84 gymnosperm families are plotted according to their first and last appearances in the fossil record. Also included is a systematic coverage of floral kingdoms, biodiversity patterns, insect associations and other fields, traced period by period from the Devonian to Quaternary.
Download or read book Regional Geography of the United States and Canada written by Daniel R. Montello and published by Waveland Press. This book was released on 2021-03-29 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fifth and thoroughly revised edition of Regional Geography of the United States and Canada provides a rich and comprehensive overview of both the physical and human geography of these two countries, and in the true spirit of geography, the interactions and interrelations of the physical and human. Following long traditions of the discipline of geography, this text incorporates words, maps, drawings, photographs, and numerical data to present its information in an engaging way. After covering beneficial precursor topics—such as the basics of physical and human geography—the text explores fifteen regions of the US and Canada. The authors observe and describe our planet’s geography in thorough and accessible detail, while laying out the spatial basics of the location, shape, and size of the different regions, and summarizes their most distinctive thematic qualities. Physical topics covered include the region’s topography and landforms, soils, climate, hydrography, vegetation, and wildlife. The human topics include the region’s population; the ethnicities and settlement history of its people; economic activities, including agriculture, forestry, mining, fishing, manufacturing, and service industries; cities; and transportation. In-depth essays expand on specific topics of interest and importance, while outlook sections prognosticate about the near future of the regions. Each chapter concludes with a bibliography of books, articles, and reports that provide further sources for the interested reader.
Download or read book Our Living Resources written by and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report provides information on distribution, abundance, and health of birds, mammals, reptiles and amphibians, fishes, invertebrates, plants, terrestrial ecosystems, aquatic ecosystems, coastal and marine ecosystems, riparian ecosystems, the Great Plains, Interior West, Alaska, and Hawaii. It also discusses special issues: global climate change, human influences, non-native species, and habitat assessments.
Download or read book Taxonomy and Ecology of Woody Plants in North American Forests written by James S. Fralish and published by John Wiley & Sons. This book was released on 2002-02-08 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thorough, detailed dendrological coverage of North American trees, shrubs, and vines This comprehensive field guide/procedural handbook provides extraordinarily detailed descriptions of trees, shrubs, and vines of North American forests. Written at a more detailed level than most field guides, it introduces basic taxonomic concepts and methods and explains the rationale behind taxonomic classification systems. Entries include Latin and common names for each species as well as physical descriptions at various levels of maturity and for different seasons. Also noted are regional and state distributions, soil conditions, cover types, shade tolerances, and common diseases and pests. This remarkably thorough and reliable reference includes: * Detailed descriptions of more than 800 species * Hundreds of additional varieties and cultivars * 550 exquisitely detailed line drawings of leaves, bark, fruit, and seeds * Broad coverage of commercial and noncommercial species * An emphasis on the silvical features of each species * A unique section on forest community ecology and cover types * The new North American Classification System Well-organized and practical, this authoritative guide is an immensely useful resource for foresters, wildlife and field biologists, naturalists, environmental scientists, and land managers.
Download or read book Origin and Evolution of Gymnosperms written by Charles B. Beck and published by . This book was released on 1988-01 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: -- Botanical Journal of the Linnean Society
Download or read book Trees of Eastern North America written by Gil Nelson and published by Princeton University Press. This book was released on 2014-07-27 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive and user-friendly field guide to the trees of eastern North America Covering 825 species, more than any comparable field guide, Trees of Eastern North America is the most comprehensive, best illustrated, and easiest-to-use book of its kind. Presenting all the native and naturalized trees of the eastern United States and Canada as far west as the Great Plains—including those species found only in tropical and subtropical Florida and northernmost Canada—the book features superior descriptions; thousands of meticulous color paintings by David More that illustrate important visual details; range maps that provide a thumbnail view of distribution for each native species; "Quick ID" summaries; a user-friendly layout; scientific and common names; the latest taxonomy; information on the most recently naturalized species; keys to leaves and twigs; and an introduction to tree identification, forest ecology, and plant classification and structure. The easy-to-read descriptions present details of size, shape, growth habit, bark, leaves, flowers, fruit, flowering and fruiting times, habitat, and range. Using a broad definition of a tree, the book covers many small, overlooked species normally thought of as shrubs. With its unmatched combination of breadth and depth, this is an essential guide for every tree lover. The most comprehensive, best illustrated, and easiest-to-use field guide to the trees of eastern North America Covers 825 species, more than any comparable guide, including all the native and naturalized trees of the United States and Canada as far west as the Great Plains Features specially commissioned artwork, detailed descriptions, range maps for native species, up-to-date taxonomy and names, and much, much more An essential guide for every tree lover
Download or read book Textbook of Botany written by Charles Elmer Allen and published by . This book was released on 1917 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Textbook of Botany: There are such wide differences of opinion regarding the proper content of an elementary course in botany that no teacher would venture to put forth a particular selection of facts and principles as the only one wisely to be made from the great body of knowledge concerning plants. The present writers are quite uninclined to adopt such an attitude toward their own choice; still less would they insist upon the precise order in which the materials they have selected should be presented. We are convinced, however, that an introductory course can best be centered about a fairly intensive study of a small number of plants, and that an attempt at a more desultory treatment of the subject must prove unsatisfactory. The plants used as types should be easily available; and so far as possible they should be selected from among those that already have definite meanings to the pupil, either because of their familiarity or because of their utility. In addition, the predominance and the practical significance of the seed plants may be recognized by devoting some time to a study of their divers forms and uses; and in this study, too, illustrations should be drawn chiefly from those plants of which the pupil sees or hears most in his everyday life. At whatever point in the course this latter work is done, it should have been preceded by an intensive study of the life of at least one particular seed plant. The present book offers a sufficient amount of work for a year's course. Probably all teachers will agree that a secondary school course in botany should not occupy less time than this, although, unfortunately, the ideal is often impossible of attainment. The order of presentation here adopted is that which will probably, in general, be most satisfactory in schools that begin the study of botany in the fall.
Download or read book Precious Heritage written by Bruce A. Stein and published by Oxford University Press. This book was released on 2000-03-16 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the lush forests of Appalachia to the frozen tundra of Alaska, and from the tallgrass prairies of the Midwest to the subtropical rainforests of Hawaii, the United States harbors a remarkable array of ecosystems. These ecosystems in turn sustain an exceptional variety of plant and animal life. For species such as salamanders and freshwater turtles, the United States ranks as the global center of diversity. Among the nation's other unique biological features are California's coast redwoods, the world's tallest trees, and Nevada's Devils Hole pupfish, which survives in a single ten-by-seventy-foot desert pool, the smallest range of any vertebrate animal. Precious Heritage draws together for the first time a quarter century of information on U.S. biodiversity developed by natural heritage programs from across the country. This richly illustrated volume not only documents those aspects of U.S. biodiversity that are particularly noteworthy, but also considers how our species and ecosystems are faring, what is threatening them, and what is needed to protect the nation's remaining natural inheritance. Above all, Precious Heritage is a celebration of the extraordinary biological diversity of the United States.
Download or read book Plant Diversity in India written by A.K. Bhatnagar and published by I K International Pvt Ltd. This book was released on 2018-07-24 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: India has a vast landmass of 328 million hectares, extending from the tropics to the alpine regions, rich wetlands to deserts, islands, long coastline to Western and Eastern Ghats and the high Himalayas. It has equally rich and diverse plant diversity, with over 47,000 species that are already documented. Because of the large population dependence on these plants, expansion of agriculture, urbanization and development efforts, many species are threatened too. Some of the issues concerning plant diversity in India are unique to the country. Taxonomic and floristic studies on all major groups have been carried out but the information is scattered in research papers and regional/local floras, manuals and monographs. This volume intends to bridge this gap. Nine of the thirteen chapters of this volume deals with different plant groups extending from algae to angiosperms and allied groups such as bacteria, fungi, lichens, and myxomycetes. There are chapters dealing with topical issues in global context on biodiversity with special reference to India such as climate change and its impact on biodiversity, crop diversity, and tradomedicalism. Each chapter is written by author(s) specialising on the particular group and having long experience of research in it. Each chapter includes not only distribution and diversity but also major researches, economic uses and conventional human interactions. Lacunae in current knowledge are also pinpointed. The book provides information on ecosystem diversity, flora of special sensitive regions (mangroves, wetland, and coral reefs), and on policies and strategies being adopted for in situ and ex situ conservation.
Download or read book Abstracts of North American Geology written by Geological Survey (U.S.) and published by . This book was released on 1968-07 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emerging Infectious Diseases written by and published by . This book was released on 2010 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Pine Genomes written by Amanda R. De La Torre and published by Springer Nature. This book was released on 2022-02-27 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first comprehensive compilation of the most up-to-date research in the genomics, transcriptomics, and breeding of pine species across Europe, North America, and Australia. With chapters on the state of the reference genomes, transposon function, genome-wide diversity, functional genomics, genomics of disease resistance, genomics of abiotic stress, and genomic selection, this book is a must-read for scientists, breeders, and students of plant genomics. The book contains 12 chapters over 300 pages authored by a group of world-renowned scientists in the field of pine genomics. Pines (Pinus) are the world’s most economically important forest tree species. The recent genome sequencing of several important pine species has paved the way for understanding their complex biology and helps future management and breeding efforts.
Download or read book A Naturalist s Guide to Forest Plants written by Donald D. Cox and published by Syracuse University Press. This book was released on 2003-10-01 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Donald D. Cox brings together a wide range of information about the forests of eastern North America, including the origins and types of soils and their relationships to vegetation, climate, and human culture; the members of the plant kingdom and the fungi that are found in forests; the methods by which forest plants reproduce and disperse their seeds; and toxic, medicinal, and edible plants that grow in forests. Cox provides complete and accurate details for those readers who are interested in collecting forest plants and preserving plant collections. For readers who wish to go a step beyond identifying and collecting plants, the final chapter describes non-technical investigations, activities, and projects. The author emphasizes forest conservation and habitat preservation throughout this invaluable book.
Download or read book Bulletin of the United States Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1909 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
