Download or read book Grasses of the British Isles written by Thomas A. Cope and published by . This book was released on 2009 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is now over 50 years since the grasses of the British Isles were last treated to a book of their own, Hubbard's famous account of 1954, though two more editions were published in 1968 and 1984, with fairly limited changes. Enough has happened to the taxonomy of the family to justify a new BSBI Handbook. Hubbard's original account, still available after more than half a century, has been overtaken by events in an ever-developing taxonomic world and will not be revised again. This new Handbook therefore attempts to bridge the gap between the taxonomy of the 1980s and the new molecular phytogenies that are currently being explored, so that what is being offered is something that users will feel comfortable with (by departing no more than absolutely necessary from familiar taxonomy), but which hints at changes that may be afoot in the near future.
Download or read book Dandelions of Great Britain and Ireland written by A. A. Dudman and published by . This book was released on 1997 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sedges of the British Isles written by Anthony Clive Jermy and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hybrid Flora of the British Isles written by Clive A. Stace and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vascular plant hybrids are numerous and constitute an important feature of our vegetation, but all too often they have been neglected by botanists. Some hybrids between native species are rare, sterile and ephemeral, but others reproduce vegetatively or by seed and have spread beyond the areas where their parents coexist. In addition, numerous hybrids have escaped from gardens to become established in the wild. Interspecific hybridisation is particularly significant as it represents a major evolutionary pathway in flowering plants; frequently it alters the characteristics of both native and alien taxa and it generates new species. The hybrid flora of the British Isles has been studied in more detail than that of any other region, and it therefore provides an ideal opportunity to study the occurrence of hybrids in wild vegetation. This book provides detailed accounts of the 909 hybrids reliably recorded in the wild in the British Isles. Of particular interest to BSBI members are the comprehensive identification notes, including a summary of the differences from the parents, enabling naming and recording of hybrids to a degree not attainable previously. The habitats of the hybrids are outlined and detailed accounts of their distributions provided, with notes on the discovery of many hybrids. There are 388 novel maps illustrating the records of the commoner hybrids in relation to those of their parents. Known chromosome numbers are given for each hybrid and its parents, and information is provided on the hybrid's fertility/sterility and its capacity for vegetative reproduction. Experimental and molecular studies of the hybrids in the British Isles and elsewhere in their ranges are summarised. Briefer notes are given on a further 156 hybrids, including some which are erroneously or doubtfully recorded and others which might potentially occur as escapes from cultivation.
Download or read book Pondweeds of Great Britain and Ireland written by Christopher David Preston and published by . This book was released on 1995 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Woodland Survey Handbook written by Keith Kirby and published by Pelagic Publishing Ltd. This book was released on 2019-05-02 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: How do you record the wildlife in a wood? This book explains ways to record the flora and fauna found in woodland and outlines the sources you can use to find out more about the history and management of an area. Whether you have just a few hours, or a few years, there are examples that you can follow to find out more about this important habitat. Woods include some of the richest terrestrial wildlife sites in Britain, but some are under threat and many are neglected, such that they are not as rich as they might be. If we are to protect them or increase their diversity we need first to know what species they contain, how they have come to be as they are, to understand how they fit into the wider landscape. Conservation surveys are the bedrock on which subsequent protection and management action is based. There is not one method that will be right for all situations and needs, so the methods discussed range from what one can find out online, to what can be seen on a general walk round a wood, to the insights that can come from more detailed survey and monitoring approaches. Fast-evolving techniques such as eDNA surveys and the use of LiDAR are touched on.
Download or read book Sea Beans and Nickar Nuts written by E. Charles Nelson and published by . This book was released on 2000 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water starworts Callitriche of Europe written by R. V. Lansdown and published by . This book was released on 2008 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Vegetative Key to the British Flora written by John Poland and published by . This book was released on 2020-01-13 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following rigorous testing throughout Britain and Ireland over the last 10 years, this second edition is a much revised version with re-written keys, additional species, phenology and, of course, many new novel identification characters. A few new illustrations have been added where space allows. In addition, the nomenclature has been updated in line with modern taxonomy. Each key has been carefully reviewed and revamped so this version aims to be quicker and more comprehensive in detail than its predecessor, greatly improving on the original work. Additional floral and fruiting characters have been added for some of the more difficult species making it more handy for casual field use.
Download or read book Handbook of Biodiversity Methods written by David Arnold Hill and published by Cambridge University Press. This book was released on 2005-08-04 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook, first published in 2005, provides standard procedures for planning and conducting a survey of any species or habitat and for evaluating the data.
Download or read book Roses of Great Britain and Ireland written by George Gordon Graham and published by . This book was released on 1993 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alien Plants of the British Isles written by E. J. Clement and published by . This book was released on 1994 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Change in the British Flora 1987 2004 written by Michael E. Braithwaite and published by . This book was released on 2006 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification of Trees and Shrubs in Winter Using Buds and Twigs written by Bernd Schulz and published by Royal Botanic Gardens Kew. This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: To many plant lovers winter seems like lost time, but a glance at the twigs of trees and shrubs shows that this does not need not be the case. In contrast to other life forms, trees and shrubs do not die aboveground, but enclose their shoots for the next year in buds, presenting many characters which hardly change over time. Using these bud and twig characters, deciduous trees and shrubs can be classified reliably in winter, which is particularly important during planting time.Author Bernd Schulz's unrivalled masterpiece is a practical guide to identifying trees and shrubs in winter. Comprehensive and easy to use, it contains over 700 species identifiable via their winter buds and twigs. The illustrated identification keys are easy to use, and a summary set of keys are provided as an appendix. Detailed descriptions are accompanied with over 1,400 colour illustrations. 'This monumental taxonomic work is one reference work that will help us all to be more confident in the identification of a comprehensive list of winter twigs and buds.Tony KirkhamHead of Arboretum, Gardens and Horticultural Services, Royal Botanic Gardens, Kew
Download or read book Introduction to Information Retrieval written by Christopher D. Manning and published by Cambridge University Press. This book was released on 2008-07-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Class-tested and coherent, this textbook teaches classical and web information retrieval, including web search and the related areas of text classification and text clustering from basic concepts. It gives an up-to-date treatment of all aspects of the design and implementation of systems for gathering, indexing, and searching documents; methods for evaluating systems; and an introduction to the use of machine learning methods on text collections. All the important ideas are explained using examples and figures, making it perfect for introductory courses in information retrieval for advanced undergraduates and graduate students in computer science. Based on feedback from extensive classroom experience, the book has been carefully structured in order to make teaching more natural and effective. Slides and additional exercises (with solutions for lecturers) are also available through the book's supporting website to help course instructors prepare their lectures.
Download or read book Plant Crib 1998 written by Timothy C. G. Rich and published by . This book was released on 1998 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grassland Plants of the British and Irish Lowlands written by Peter A. Stroh and published by . This book was released on 2019 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt:
