Download or read book The Genus Ramalina Acharius Ascomycota Lecanoromycetes Ramalinaceae in Northern South America written by Vicente Marcano and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Abstract Fifty three taxa of Ramalina Acharius have been found in northern South America (including Colombia and Venezuela), w 8 varieties and 48 species. Seven species and four varieties are described as new to science viz. R. anteojina V. Marcano;' A. Morales sp. nov. (Venezuela), R. canaguensis V. Marcano & A. Morales var. colombiana Marcano & Morales var. (Colombia), R. canaguensis Marcano & Morales var. guascasensis Marcano & Morales var. nov. (Colombia), R. canague V. Marcano & A. Morales var. mucumpisensis V. Marcano & A. Morales var. nov. (Colombia and Venezuela), R. reds Krog & Swinscow var. colombiana V. Marcano & A. Morales var. nov. (Colombia), R. maegde•aui V. Marcano & Morales sp. nov. (Venezuela), R. mirandensis V. Marcano & A. Morales sp. nov. (Venezuela), R. subcalcarata V. Marc & A. Morales sp. nov. (Venezuela), R. tenaensis V, Marcano & Morales sp. nov. (Colombia), R. veneluelensis V. Ma & A. Morales sp. nov. (Venezuela), and R. victoriana V. Marcano & L. Castillo sp. nov. (Venezuela); 8 taxa are reported first time from Venezuela: R. anceps Nylander, R. bogotensis Nylander. R. chilensis Bertero, R. holstii Krog & Swinsco R. rigida Persoon ex Acharius, R. sorediosa (Bouly de Lesdain) Landron, R. subfraxinea Nylander var. subfraxinea, R. tenella Muller Argoviensis, whereas 5 taxa are reported for the first time from Colombia: R. africana (Stein) Dodge, asahinae W. Culberson & C. Culberson, R. subfraxinea Nylander var. confirmata, R. tenuissima V. Marcano & A. Moral and R. vareschii V. Marcano & A. Morales. A key to the species is presented together with data on morphology, ante chemistry, variation, taxonomy, habitat and distribution. The chemical analyses show that the sekikaic (24 taxa), bonin (16 taxa) and homosekikaic (15 taxa) acids are the most common depsides found. Divaricatic acid is present in 10 of taxa but is frequently replaced by sekikaic acid and its aggregates. The most common depsidones are salazinic acid ( taxa), and protocetraric acid (25 taxa). The distribution of the secondary compounds reveals they are able to produce q different substances which appears be not dependent to the habitat where occur the species, neither to the occurrence minute morphological or anatomical differences at similar species. Often, several chemical strains (chemosyndromes) be recognized within a single population of a particular species, but have no correlation with morphology or ecolo Biogeographic data indicate that of the 53 taxa known from northern South America, 28.3% (15) are known only fro Venezuela, 7.5% (4) are known only from Colombia and 18.9% (10) are known only from Venezuela and Colombia. the 50 taxa known from Venezuela, 70% (37) of the taxa have their main distribution in the Andean region. The In concentration of Ramalina species seen in the Andes indicates that this region constitutes an important centre for speciati and endemism of Ramalina both in northern South America but also throughout the world"--Page 4.
Download or read book The Lichen Forming Fungi written by D. L. Hawksworth and published by Springer. This book was released on 1984-09-01 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lichen assocIations include some of the oldest living organisms and represent a major nutritional method adopted by one in five fungi. Major advances in our knowledge of these biologically fascinating organisms have been made in recent years and they now have a great deal to offer to teaching in colleges and universities. In addition to being examples of biotrophic systems, they merit discussion in courses on fungal phylogeny, fungal nutrition, ecology, ecophysiology, biogeography, evolution, chemo taxonomy, environmental monitoring, and algology. As all aspects of lichenology cannot be treated adequately in a book of this length, we have emphasized topics which we have found to be of particular interest to a advanced undergraduate and postgraduate biologists (or biogeographers) or those contemplating more detailed studies in particular areas. Consequently we have endeavoured to place lichen associations in the broader context of biological and biogeographical teaching. Examples are drawn from many areas of the world, including North America, but it is inevitable that European ones predominate, as lichens there are better known than in other regions. Technical terms are defined when first used, and definitions can therefore be located with the aid of the index. Lichens are not a systematic group and so are not appropriately treated in a groups-orientated programme, but are a major biological phenomenon all too commonly accorded scant attention in university courses.
Download or read book Niebla and Vermilacinia Ramalinaceae from California and Baja California written by Richard W. Spjut and published by BRIT Press. This book was released on 1996 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lichens
Download or read book Lichen Biology written by Thomas H. Nash (III.) and published by Cambridge University Press. This book was released on 1996-01-26 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: A broad-ranging review of organisms which have long-fascinated biologists, ecologists and chemists.
Download or read book Recent Advances in Lichenology written by Dalip Kumar Upreti and published by Springer. This book was released on 2015-02-09 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses in detail molecular, mycobiont culture, biomonitoring and bioprospection of lichens, providing insights into advances in different fields of lichenology by applying modern techniques and approaches and examining how their application has enhanced or changed classical approaches. It offers a valuable resource, especially for beginners, students and researchers from different academic backgrounds interested in the study of lichens. In recent years, the introduction of modern analytical techniques and approaches has significantly improved our understanding of the environment, including lichens. Lichens are unique organisms which possess untapped potential as effective and reliable bioindicators, sources of therapeutic phytochemicals, and as excellent extremophiles. The unique and peculiar characteristics of lichens underline the need for a multidimensional approach to explore their potential in various fields of environment science, botany and chemistry. Modern techniques, especially molecular techniques, have greatly enriched the field of lichen taxonomy and its position in the plant kingdom, revealing little-known species and exploring their evolutionary history, while multivariate analysis and GIS approaches have established lichens as an ideal and reliable tool for monitoring air pollution. Advanced culture techniques have expanded the pharmacological applications of lichens, which was formerly restricted due to their small biomass. The advent of sophisticated analytical instrumentation has now facilitated the isolation and characterization of lichens’ bioactive constituents, even in lower concentrations, as well as the estimation of their stress responses at different levels of pollution. As lichen diversity is adversely affected by increasing air pollution, there is a pressing need to develop effective management practices to conserve, restore and document lichen diversity.
Download or read book Life at Rock Surfaces written by Burkhard Büdel and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-06-08 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock surfaces provide a challenging habitat for a broad diversity of micro- or small-sized organisms. They interact with each other forming complex communities as well with their substrate causing biodeterioration of rock. Extreme fluctuation in light, temperature and hydration are the main factors that determine the rock surface habitats. The habitat includes epilithic organisms which thrive on the surface without penetrating the rock, endolithic organisms which live just beneath the surface using a thin layer of the rock surface for protection against adverse conditions of the environment (e.g. light protection, storage of water) and chasmo-endolithic organisms which use fractures of the rock surface for a more habitable environment. The book will provide an overview of the various organismal groups, from prokaryotes to vascular plants and arthropods, as well as survey organism-mediated interactions with the rock surface. The latter include biogenic weathering (biogeochemistry, state-of-the art imaging methods), photosynthesis and nitrogen fixation at and inside the rock surface.
Download or read book Recent Advances in Lichenology written by Dalip Kumar Upreti and published by Springer. This book was released on 2016-10-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses in detail molecular, mycobiont culture, biomonitoring and bioprospection of lichens, providing insights into advances in different fields of lichenology by applying modern techniques and approaches and examining how their application has enhanced or changed classical approaches. It offers a valuable resource, especially for beginners, students and researchers from different academic backgrounds interested in the study of lichens. In recent years, the introduction of modern analytical techniques and approaches has significantly improved our understanding of the environment, including lichens. Lichens are unique organisms which possess untapped potential as effective and reliable bioindicators, sources of therapeutic phytochemicals, and as excellent extremophiles. The unique and peculiar characteristics of lichens underline the need for a multidimensional approach to explore their potential in various fields of environment science, botany and chemistry. Modern techniques, especially molecular techniques, have greatly enriched the field of lichen taxonomy and its position in the plant kingdom, revealing little-known species and exploring their evolutionary history, while multivariate analysis and GIS approaches have established lichens as an ideal and reliable tool for monitoring air pollution. Advanced culture techniques have expanded the pharmacological applications of lichens, which was formerly restricted due to their small biomass. The advent of sophisticated analytical instrumentation has now facilitated the isolation and characterization of lichens’ bioactive constituents, even in lower concentrations, as well as the estimation of their stress responses at different levels of pollution. As lichen diversity is adversely affected by increasing air pollution, there is a pressing need to develop effective management practices to conserve, restore and document lichen diversity.
Download or read book Atlas of Pyrenulaceae and Trypetheliaceae Vol 3 written by Felix Schumm and published by BoD – Books on Demand. This book was released on 2021-12-20 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on two families of lichenized ascomycetes: Pyrenulaceae and Trypetheliaceae. It illustrated the majority of the accepted species in these families, which are most diverse on bark in tropical regions, most especially the Amazon. Fully updated dichotomous identification keys are given to all species in these families and to some similar groups and species, especially those in the same habitat, several of which are also illustrated in full. The illustrations are made from relatively recent material which still shows all characters, including gelatinous ascopore sheaths. For relatively recently described species, often type material is illustrated.
Download or read book Nordic Lichen Flora written by Teuvo Ahti and published by . This book was released on 1999 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lichenographia universalis written by Erik Acharius and published by . This book was released on 1976 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Lichenographia Universalis: In Qua Lichenes Omnes Detectos, Adiectis Observationibus Et Figuris Horum Vegetabilium Naturam Et Organorum Carpomorphorum Structuram Illustrantibus, Ad Genera, Species, Varietates Differentiis Et Observationibus Sollicitie Definitas Erik Acharius apud I.F. Danckwerts, 1810 Lichens
Download or read book Biodiversity and Ecology of Lichens written by André Aptroot and published by . This book was released on 2009 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume on lichen biodiversity and ecology is dedicated to Harrie Sipman. It contains 29 peer-reviewed contributions by 50 authors. The emphasis is on the biodiversity and ecology of lichens in the tropics, but some papers are devoted to related areas. This volume is indispensable for active lichenologists, especially because it contains keys to several lichen genera. Full monographs are presented for the reinstated genus Herpothallon (with 29 species), the new genera Diaphorographis (with 2 species), Sipmaniella (with 1 species) and Synarthothelium (with 2 species), and the genus Placopyrenium (with 14 species and 3 varieties). Keys are furthermore given to all cryptothalline species of Lecidea, the lichenicolous genus Sphaerellothecium and the species of Cryptothecia and Stirtonia in Thailand. The genus Trypetheliopsis is resurrected for Musaespora, and all relevant combinations are made. Most papers describe various new species from all over the world, in the genera Bacidia, Buellia, Caloplaca, Chapsa, Cladonia, Cryptothecia, Diaphorographis, Gassicurtia, Herpothallon, Micarea, Phaeographis, Placocarpus, Placopyrenium, Porina, Pyrenula, Pyxine, Stirtonia, Strigula, Synarthothelium, Thelocarpon, Thelopsis, Xanthoparmelia, and Zwackhiomyces. The newly described Thelopsis is intermediate between that genus and Topelia, leading to the supposition that these genera are one continuum and should be united. Floristic papers are presented on lichens from Montenegro, Korea, Japan, Thailand, Namibia (including the description of an association), South Africa and the Seychelles and bryophytes of the Galapagos, but specimens from a multitude of other countries ranging from Iceland to Australia are cited throughout the papers. The floristic papers contain also new synonymys and combinations, partly in additional genera like Mycomicrothelia. One paper is devoted to lichens and global warming. The volume also contains three phylogenetic studies, viz. on all lichen groups with cyanobacteria, on Schistophoron and on Tylophoron, in which a systematic placement for this enigmatic genus is postulated for the first time. The volume is completed by lists of published papers and species decribed by Harrie Sipman. The volume is richly illustrated and contains many colour photographs, e.g. from all Herpothallon species and from sections through the apothecia of many Lecidea species.
Download or read book Flora of the Venezuelan Guayana Araliaceae Cactaceae written by Paul E. Berry and published by Missouri Botanical Garden Press. This book was released on 1995 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: Located in the southeastern half of Venezuela, the Venezuelan Guayana is the core area of what has been called "The Lost World." It is home to nearly 10,000 species of vascular plants, including many endemic species and genera. The Flora of the Venezuelan Guayana is the first full scientific account of the plants of the region. This volume continues the alphabetical sequence of family treatments, from Araliaceae to Cactaceae. Includes keys, descriptions, and illustrations of more than half the species treated.
Download or read book The Lichens of British Columbia written by Trevor Goward and published by Ministry of Forests Research Program. This book was released on 1994 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual provides illustrated keys to all leaf and scale lichens known to occur in British Columbia. In total, 327 species are included, while 19 taxa are excluded from earlier accounts of the flora. Accompanying the keys are approximately 350 line drawings. The manual briefly summarizes the ecology, distribution, and frequency status of the province's foliose and squamulose lichens. Each genus account provides a common name, a short description, pertinent references, notes on the derivation of the common name, and notes on global status and distribution, taxonomy, chemistry, and/or similar genera. Each species account provides species and author citation, distribution maps, common names, habit, and lichen distribution in B.C.
Download or read book Foliicolous Lichens written by Robert Lücking and published by . This book was released on 1992 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microchemical Methods for the Identification of Lichens written by Alan Orange and published by Twayne Publishers. This book was released on 2001 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biodiversity and Conservation of Neotropical Montane Forests written by Steven P. Churchill and published by New York Botanical Garden Press. This book was released on 1995 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountain plants, Andes Region.
Download or read book Gobies of the Philippines and the China Sea written by Albert William Herre and published by . This book was released on 1927 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
