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Author : Clive A. Stace
Publisher : Academic Press
Page : 648 pages
File Size : 47,6 Mb
Release : 1975
Category : Science
ISBN : STANFORD:36105031667210
Author : Clive A. Stace,Christopher David Preston,D. Pearman
Publisher : Unknown
Page : 0 pages
File Size : 53,5 Mb
Release : 2015
Category : Botany
ISBN : 0901158488
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.
Author : Clive A. Stace
Publisher : Cambridge University Press
Page : 818 pages
File Size : 45,9 Mb
Release : 1999-03-04
Category : Science
ISBN : 0521653150
A portable guide to identifying plants in the British Isles, based on New Flora of the British Isles.
Author : Clive Stace
Publisher : Cambridge University Press
Page : 1267 pages
File Size : 44,8 Mb
Release : 2010-04-01
Category : Science
ISBN : 9781139486491
Since its first publication in 1991, New Flora of the British Isles has become established as the standard work on the identification of the wild vascular plants of the British Isles. The Flora remains unique in many features, including its full coverage of all British wild plants, its user-friendly organisation, and its specially compiled keys and descriptions. This new edition includes the addition of more than 160 species, so that 4,800 taxa are now covered in varying degrees of detail. It also incorporates the new molecular system of classification based on DNA sequences. Furthermore, it includes 1600 species illustrations, rewritten distributions and an overhaul of the designation of degrees of rarity, with the introduction of a third, less rare, category. These revisions should ensure that this third edition remains the essential reference source for all taxonomists, ecologists, conservationists, plant hunters and biogeographers, whether they be researchers, teachers, students or amateurs.
Author : A. R. Clapham,T. G. Tutin,D. M. Moore
Publisher : CUP Archive
Page : 724 pages
File Size : 41,5 Mb
Release : 1990-02-08
Category : Science
ISBN : 0521389747
Originally published in paperback in 1990, this book's purpose was the accurate identification of all British plants.
Author : C. D. Preston,Jane M. Croft
Publisher : BRILL
Page : 365 pages
File Size : 52,6 Mb
Release : 2022-06-13
Category : Science
ISBN : 9789004473416
Over the past 50 years, major changes have taken place in the distribution of aquatic plants in Europe. Many species have declined whilst other species have increased in abundance or spread, including several that were originally introduced from the New World. Despite the relative richness of the aquatic flora of Britain and Ireland, it is a neglected area of study. This book is not an identification manual but provides a summary of the distribution, habitat and reproductive biology of 200 taxa in 72 genera, with individual distribution maps, and also summarizes their distribution overseas. A joint project of I.T.E. (now C.E.H.), the Joint Nature Conservation Committee and the Environment Agency.
Author : M. Ingrouille
Publisher : Springer Science & Business Media
Page : 363 pages
File Size : 51,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401112321
The native British flora is today relatively ant species on the continent, such as Picea impoverished. Today the British Isles has a abies (Norway spruce), did not get into Britain flora of only about 1500 species of native in time. However, we must not over flowering plants. France and Spain, each emphasize the importance of Britain being an geographically only about twice the area, island. A comparison of floras on either side have 3-4 times as many species each. The of the English Channel shows that there are comparison is more marked when consider species present in England and not in ing the endemic species, those specialities of northern France as well as vice versa. Many each geographical region which grow of the species present in northern France but nowhere else. If only normal sexual species absent from England are weeds adapted to are considered, then there are only about 13 French agriculture. Others may be limited endemic species in the British Isles while 1000 not by the sea but by the climate. species are endemic to Spain. Nevertheless, the example of Ireland, However, the poverty of the British flora is which was isolated much earlier than the rest not a unique phenomenon. The whole of of the British Isles, does show the effect of north-western Europe, an area including isolation because it does have a much poorer northern France and much of Germany and flora and fauna.
Author : Peter Sell,Gina Murrell
Publisher : Cambridge University Press
Page : 128 pages
File Size : 52,8 Mb
Release : 1997-03-13
Category : Science
ISBN : 9781107078642
Planned in five volumes, this new, critical Flora provides a definitive account of the native species, naturalised species, frequent garden escapes and casuals found in the British Isles. Full keys and descriptions should enable the user to name all plants occurring in the wild, plus some ornamental trees and shrubs. For the first time detailed accounts of all the large apomictic genera are given and many infraspecific variants included. Each species entry begins with the accepted latin name, synonyms and the common English name. A detailed description follows, with separate descriptions being given for infraspecific taxa. Information on status, ecology and distribution is also included. Clear black and white line drawings illustrate an extensive glossary and also illuminate the diagnostic features of a number of groups of plants.
Author : Peter D. Sell,Gina Murrell
Publisher : Cambridge University Press
Page : 446 pages
File Size : 50,8 Mb
Release : 1996
Category : Medical
ISBN : 0521553393
Planned in five volumes, this new, critical Flora provides a definitive account of the native species, naturalized species, frequent garden escapes and casuals found in the British Isles. Full keys and descriptions should enable the botanist, researcher or informed amateur to name all plants occurring in the wild, plus some ornamental trees and shrubs. Detailed accounts of all the large apomictic genera are given and many infraspecific variants. Each species entry begins with the accepted Latin name, synonyms and the common English name. A detailed description follows, with separate descriptions being given for infraspecific taxa. Includes information on status, ecology and distribution. Clear black and white line drawings illustrate an extensive glossary and also illuminate the diagnostic features of a number of groups of plants.
Author : Anne Brewis,Paul Bowman,Francis Rose
Publisher : BRILL
Page : 406 pages
File Size : 54,7 Mb
Release : 2023-07-03
Category : Science
ISBN : 9789004632172
This totally new and much needed work on the County’s flora – published in association with the Hampshire and Isle of Wight Wildlife Trust – is the first comprehensive study for nearly a century. Excluding the Isle of Wight, it contains over 1750 species of vascular plants including some non-indigenous speces as well as subspecies, varieties and hybrids. In addition, condensed accounts of the lichens (590 taxa) and bryophytes (459 taxa) – groups in which the county is particularly rich – have been contributed by Francis Rose with Ken Sandell and Alan Crundwell respectively. As in Townsend’s Flora of Hampshire (1884), there are introductory chapters on Structure and Geology; Climate; Habitats; and an up-to-date Comparison of Hampshire’s Flora with some other southern Counties (including the Isle of Wight) – all by Francis Rose. There are also chapters on Conservation of the Flora (with a complete list of nature reserves) by Peter Brough and Paul Bowman; Some earlier Workers on the Hampshire Flora by David Allen; and Botanical Recording by Paul Bowman. The Flora ends with an extensive Bibliography and References and a fully comprehensive Index. The principal authors are all experienced Hampshire botanists with an intimate knowledge of its flora.
Author : Gyanendra Kumar Rai,Ranjeet Ranjan Kumar,Sreshti Bagati
Publisher : CRC Press
Page : 371 pages
File Size : 43,5 Mb
Release : 2021-02-14
Category : Science
ISBN : 9781000373981
Since recent years, the population across the globe is increasing expeditiously; hence increasing the agricultural productivity to meet the food demands of the thriving population becomes a challenging task. Abiotic stresses pose as a major threat to agricultural productivity. Having an adequate knowledge and apprehension of the physiology and molecular biology of stress tolerance in plants is a prerequisite for counteracting the adverse effect of such stresses to a wider range. This book deals with the responses and tolerance mechanisms of plants towards various abiotic stresses. The advent of molecular biology and biotechnology has shifted the interest of researchers towards unraveling the genes involved in stress tolerance. More effort is being made to understand and pave ways for developing stress tolerance mechanisms in crop plants. Several technologies including Microarray technology, functional genomics, on gel and off gel proteomic approaches have proved to be of utmost importance by helping the physiologists, molecular biologists and biotechnologists in identifying and exploiting various stress tolerance genes and factors for enhancing stress tolerance in plants. This book would serve as an exemplary source of scientific information pertaining to abiotic stress responses and tolerance mechanisms towards various abiotic stresses. Note: T&F does not sell or distribute the Hardback in India, Pakistan, Nepal, Bhutan, Bangladesh and Sri Lanka.
Author : National Academy of Sciences
Publisher : National Academies Press
Page : 353 pages
File Size : 44,5 Mb
Release : 2000-10-11
Category : Science
ISBN : 9780309172264
"The present book is intended as a progress report on [the] synthetic approach to evolution as it applies to the plant kingdom." With this simple statement, G. Ledyard Stebbins formulated the objectives of Variation and Evolution in Plants, published in 1950, setting forth for plants what became known as the "synthetic theory of evolution" or "the modern synthesis." The pervading conceit of the book was the molding of Darwin's evolution by natural selection within the framework of rapidly advancing genetic knowledge. At the time, Variation and Evolution in Plants significantly extended the scope of the science of plants. Plants, with their unique genetic, physiological, and evolutionary features, had all but been left completely out of the synthesis until that point. Fifty years later, the National Academy of Sciences convened a colloquium to update the advances made by Stebbins. This collection of 17 papers marks the 50th anniversary of the publication of Stebbins' classic. Organized into five sections, the book covers: early evolution and the origin of cells, virus and bacterial models, protoctist models, population variation, and trends and patterns in plant evolution.
Author : Norman C. Ellstrand
Publisher : JHU Press
Page : 270 pages
File Size : 45,5 Mb
Release : 2005-04-13
Category : History
ISBN : 0801881900
With the advent of genetic engineering, "designer" crops might interbreed with natural populations. Could such romances lead to the evolution of "superweeds", as some have suggested? But haven't crops had sex with wild plants in the past? Has such gene swapping occurred without consequences? And if consequences have indeed occurred, what lessons can be gleaned for engineered crops? In Dangerous Liaisons? Norman Ellstrand examines these and other questions. He begins with basic information about the natural hybridization process. He then describes what we now know about hybridization between the world's most important crops—such as wheat, rice, maize, and soybeans—and their wild relatives. Such hybridization, Ellstrand explains, is not rare, and has occasionally had a substantial impact. In some cases, the result was problematic weeds. In others, crop genes have diluted natural diversity to the point that wild populations of certain rare species were absorbed into the gene pool of the more common crop, essentially bringing the wild species to the brink of extinction. Ellstrand concludes with a look to the future. Will engineered crops pose a greater threat than traditional crops? If so, can gene flow and hybridization be managed to control the escape of engineered genes? This book will appeal to academics, policy makers, students, and all with an interest in environmental issues.
Author : Peter Sell,Gina Murrell
Publisher : Cambridge University Press
Page : 15 pages
File Size : 54,6 Mb
Release : 2006-04-06
Category : Science
ISBN : 9781139451208
This critical Flora provides a definitive account of the native species, naturalised species, frequent garden escapes and casuals found in the British Isles. Full keys and descriptions will enable the user to name all plants occurring in the wild, plus some ornamental trees and shrubs. For the first time detailed accounts of all the large apomictic genera are given and many infraspecific variants included. Each species entry begins with the accepted Latin name, synonyms and the common English name. A detailed description follows, including information on flowering period, pollination and chromosome number. Separate descriptions are given for infraspecific taxa. Information on the status, ecology and distribution (including worldwide distribution) of the species and infraspecific taxa is also given. Clear black and white line drawings illustrate an extensive glossary and also illuminate the diagnostic features in a number of groups of plants.
Author : Jelte van Andel,James Aronson
Publisher : John Wiley & Sons
Page : 341 pages
File Size : 52,5 Mb
Release : 2009-03-12
Category : Science
ISBN : 9781444309188
Aimed at Masters, and PhD students, teachers, researchers andnatural resource managers, this book explores the interface betweenrestoration ecology and ecological restoration. Covers both the ecological concepts involved in restorationecology and their practical applications. Written by an excellent group of ecologists from centres acrossEurope with a strong reputation for restoration ecology. Only textbook around aimed specifically at advancedundergraduate courses and postgraduate study programmes.
