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This volume 154 is the first comprehensive treatment of the genus Syntrichia in the Holarctic. Syntrichia (Pottiaceae, Bryophyta) is a genus with a large number of species existing on all continents. Some of the taxa are difficult to distinguish. Many names had to be reclassified taxonomically. The main focus of this work is on the species present in North America as those are often not well understood. Because the Holarctic part of Eurasia is connected to North America, the species of the entire extra-tropical Northern Hemisphere are studied. About 110 taxa are examined. The studies resulted in 34 species with 59 taxa of Syntrichia and three species which had to be assigned to other genera. Sixteen of the 59 taxa are new to science (five new species, four of them restricted to the Americas, one also existing in Eurasia; four other new taxa are restricted to North America, five to Eurasia, and two are present both in North America and in Eurasia). Three names previously treated as synonyms of other species are recognized as good species (one restricted to North America, two also in Eurasia). Twenty-four other names were designated as new synonyms for other taxa. In addition to the descriptions of taxa and an identification key, several characteristics (some of them new) are given that may be relevant to a division within the genus Syntrichia. This work is an important resource for bryologists specifically dealing with species of North America, but also of Europe and Asia. It is a great help for the identification of all taxa of Syntrichia in the Holarctic. It also serves as a basis for molecular-genetic studies on the genus Syntrichia and related genera.
Mosses are a major component of the vegetation in ice-free coastal regions of Antarctica. They play an important role in the colonisation of ice-free terrain, accumulation of organic matter, release of organic exudates, and also provide a food and habitat resource for invertebrates. They serve as model organisms for physiological experiments designed to elucidate problems of plant cold tolerance and survival mechanisms and for monitoring biological responses to climate change. This Flora provides the first comprehensive description, with keys, of all known species and varieties of moss in the Antarctic biome. It has involved microscopic examination of around 10,000 specimens from Antarctica and, for comparison, from other continents. All species are illustrated by detailed line drawings, alongside information about their reproductive status, ecology, and distribution. This is an invaluable resource for bryologists worldwide, as well as to Antarctic botanists and other terrestrial biologists.
The 23 papers of this Nova Hedwigia Beiheft 138 span a broad range of topics in Systematics, phytodiversity, phytosociology and ecology of Bryophytes refl ecting the still continuing importance of Bryology. In the Systematic part (8 contributions), a new genus, Kuerschneria, and four new species are described as new to science. Two papers include molecular analyses (genera Oxystegus and Palustriella), one a morphometric analysis of the genus Gymnostomiella, and fi ve papers deal with classical morpho-anatomical systematic treatments (moss genus Forsstroemia and liverwort genera, Ceratolejeunea and Lejeunea). The Phytodiversity part (9 contributions) presents an impressive example for the recent ongoing worldwide survey on the diversity of bryophytes, ranging from Europe to South-West Asia, Macaronesia (Selvagens Islands), the Himalayan region, southern South America and to _le Amsterdam in the South Indian Ocean. These are contributions to different countries and regions (Greece, Montenegro, Turkey, Bhutan, Chile, Sino-Himalayan region), and to the oceanic islands Selvagens and _le Amsterdam. The Phytosociology and Ecology part (5 papers) gives an impression of the phytosociological and ecological work in the Tropics (2 contributions, neotropical trunk-epiphytes), two concern vegetation units in Europe and one the ecology of genus Porella in Madeira. The volume is completed with a contribution on asexual reproduction (propagula types) in pleurocarpous mosses. The papers have been written by colleagues, former scholars and friends of Professor Dr. Harald K rschner, to honour his distinguished scientifi c and academic career and his outstanding contributions to the bryology of South-West Asia, the tropical rain forests and to Geobotany.
The new, enlarged and revised flora replaces the former flora "The Liverworts, Mosses and Hornworts of Southwest Asia (Marchantiophyta, Bryophyta, Anthocerotophyta)" (2011) which was the first comprehensive bryophyte flora and wellstructured synthesis of the current knowledge available on the liverworts, mosses and hornworts of Southwest Asia (Near and Middle East). As the former flora, this enlarged and revised new edition covers Afghanistan, Bahrain, Iraq, Iran, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Sinai Peninsula, Syria, Turkey, United Arab Emirates, and Yemen (incl. the Socotra Archipelago), summarized to a great extend as "Asia 5" in the "Index Muscorum". Since the first publication in 2011, scientific interest in bryophytes drastically increases, resulting in more than 70 additional species, formerly unknown to the area and the first moss records to Qatar Peninsula. In total, nearly 1400 taxa (255 liverworts, 1128 mosses, 5 hornworts) and nearly 2300 names and synonyms were treated. The dichotomous keys provide families, genera and species, including annotations to distribution and to critical, doubtful or erroneously recorded species. The flora includes all bryophyte taxa known to date within this large and varied climatological and geomorphological area. It responds to the tools of the Conservation on Biological Diversity and the Target 1 of the updated Global Strategy for Plant Conservation. Main goal beside identification is to achieve a checklist of all known plants of this often neglected and/or overlooked group of organisms. It is a further step to integrate Southwest Asia (Near and Middle East) into the Global Network of floristic knowledge. As many of the species are important initial colonizers of bare rocks, crusts and soil surfaces in steppe and desert regions of the area and are forerunners in vascular plant colonization and succession, their knowledge is of fundamental importance for understanding phytodiversity and ecosystems and provides access to taxonomic information, important for nature conservation. It enables us to give a more precise answer to the question how many plant species occur in the area and it is a step to enhanced education and scientific understanding on the wealth of plant diversity. The book is recommended to all botanists and ecologists, interested in bryophyte flora and vegetation, biodiversity and nature conservation and may stimulate and promote greater interest in bryophytes. We hope, it is also in future a mandatory reference for students, experts and researchers.
Bryophytes, especially mosses, represent a largely untapped resource for monitoring and indicating effects of climate change on the living environment. They are tied very closely to the external environment and have been likened to 'canaries in the coal mine'. Bryophyte Ecology and Climate Change is the first book to bring together a diverse array of research in bryophyte ecology, including physiology, desiccation tolerance, photosynthesis, temperature and UV responses, under the umbrella of climate change. It covers a great variety of ecosystems in which bryophytes are important, including aquatic, desert, tropical, boreal, alpine, Antarctic, and Sphagnum-dominated wetlands, and considers the effects of climate change on the distribution of common and rare species as well as the computer modeling of future changes. This book should be of particular value to individuals, libraries, and research institutions interested in global climate change.