British Mosses And Liverworts

This is the first book to cover England's rare and threatened mosses and liverworts, collectively known as bryophytes. As a group, they are the most ancient land plants and occupy a unique position in the colonization of the Earth by plant life. However, many are at risk from habitat loss, pollution, climate change, and other factors. Britain is one of the world's best bryologically recorded areas, yet its mosses and liverworts are not well known outside a small band of experts. This has meant that conservation action has tended to lag behind that of more charismatic groups such as birds and mammals. Of the 916 different types of bryophyte in England, 87 are on the British Red List and are regarded as threatened under the strict criteria of the International Union for the Conservation of Nature. This book aims to raise awareness by providing stunning photographs--many never before published--of each threatened species, as well as up-to-date profiles of 84 of them, including status, distribution, history, and conservation measures. The book looks at what bryophytes are, why they are important and useful, and what makes them rare; it also examines threats, extinctions, ex situ conservation techniques, legislation, and the impact of the 1992 Convention on Biological Diversity. Provides the first treatment of England's rare and threatened mosses and liverworts Features stunning photographs--many never before published--of each species and many of their habitats Treats each species in a handy and attractive double-page layout Includes up-to-date profiles of 84 species, including status, distribution, history, and conservation measures Presents the first overview of English bryophyte conservation Offers invaluable guidance to people working in conservation in England, the British Isles, Europe, and beyond

Dr Watson's lucid introduction to British mosses and liverworts, first published in 1955, has become a standard work. The author gives descriptions of over 200 of the commoner and more notable species, illustrating each to show its diagnostic microscopic and macroscopic features, as well as providing brief notes of many other species.

This book describes and illustrates in detail the 760 species of mosses currently known to occur in the British Isles and incorporates the most up-to-date information available on classification and nomenclature, together with recent synonyms. The species descriptions provide information on frequency, ecology, geographical relationships and distribution, including information on protected species and those species at risk. For many species there are footnotes to aid identification. In addition to the species descriptions there are descriptions of families and genera and also introductory information on conservation, collection, preservation and examination of material, together with advice on using the keys. An artificial key to genera provides the only workable comprehensive key published in the English language. This second edition incorporates the very considerable advances in our knowledge of mosses made in the last quarter of the twentieth century and will provide a unique resource for all concerned with these fascinating organisms.

This entirely new English edition, comprehensively revised and edited by T.L. Blockeel, has been translated from German, with some additional text, by the authors. In a single volume, this work provides users with the means of making at least a preliminary identification of any bryophyte or fern which they might encounter in Europe or Macaronesia.