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Author: Howard Crum
Publisher: University of Michigan Press
ISBN:
Category : Nature
Languages : en
Pages : 610
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Book Description
Author: Howard Crum
Publisher: University of Michigan Press
ISBN:
Category : Nature
Languages : en
Pages : 610
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Book Description
Author: Rashid A.
Publisher: Vikas Publishing House
ISBN: 9788125905691
Category : Science
Languages : en
Pages : 312
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Book Description
This endeavour is aimed to be comprehensive and innovative. It covers the entire course of reading in Bryology. After a brief Introduction, there is an account of array of diversity and development of Bryophytes. In three chapters on Liverworts, Hornworts and Mosses, one can find an illustrated and concise account of all representative types. It is followed by comparative morphology. In two chapters on Gametophyte and Sporophyte are unravelled the elements of unity in diversity. Due emphasis has been given to experimental studies. In five chapters are traced the events of life cycle; Spore germination, Protonema differentiation and Gametophyte initiation, Sexuality and Sporophyte development, Regeneration, and Alternation of generations. Experimental studies a backbone of this book are not only interesting in a class room but informative to decipher different aspects of differentiation. Finally, there is food for thought in chapters on Cytogenetics and Evolution, and Origin and Fossil History. At the end is an extensive bibliography of old and new Literature, for further reading.
Author: Nancy G. Slack
Publisher:
ISBN:
Category : Bryophytes
Languages : en
Pages : 422
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Book Description
Author: Samit Ray
Publisher: CRC Press
ISBN: 1000441458
Category : Science
Languages : en
Pages : 134
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Book Description
This book will enrich the readers theoretical knowledge about the fundamental aspects of bryology. There is a great significance of bryophytes in land plant evolution, water retention, prevention of soil erosion, nutrient cycling, nitrogen fixation and pollution monitoring. Considering this, the authors found it necessary to provide a basic guideline to the students to study the bryoflora. The present manual for bryophytes will provide practical guidelines for collection and recording of bryophytes, methodologies for studying it's morphology, morphometry and internal structure, modern approach to bryophytes systematics and characterization of genera, taxonomic importance of spore ornamentation as revealed by the Scanning Electron Microscopy, significance of bryophyte conservation and basic methods of in vitro study. Please note: Taylor & Francis does not sell or distribute the Hardback in India, Pakistan, Nepal, Bhutan, Bangladesh and Sri Lanka.
Author: Yoshinori Asakawa
Publisher: Springer Science & Business Media
ISBN: 370911084X
Category : Science
Languages : en
Pages : 811
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Book Description
For some 50 years, Professor Asakawa and his group have focused their research on the chemical constituents of bryophytes and have found that these plants contain large numbers of secondary metabolites, such as terpenoids, acetogenins, and aromatic compounds representative of many new skeletons, which exhibit interesting biological activities. Individual terpenoids, when found as constituents of both a bryophyte and a higher plant, tend to occur in different enantiomeric forms. Professor Asakawa has covered the literature on bryophytes in two earlier volumes of Progress in the Chemistry of Organic Natural Products, namely, Volumes 42 (1982) and 65 (1995). Since the publication of the latter volume, a great deal of new information has appeared on bryophytes. One example is that known sex pheromones of algae have been discovered in two liverworts, indicating that some members of the latter taxonomic group might originate from brown algae. From information provided in this volume, it is suggested that two orders of the Marchantiophyta should be combined.
Author: Nancy G. Slack
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 82
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Book Description
Author: Thomas Roy Rambo
Publisher:
ISBN:
Category : Bryophytes
Languages : en
Pages : 160
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Book Description
Species richness and abundance of forest floor bryophytes, including epiphytes from incorporated litterfall, were assessed at two sites in western Oregon. Bryophyte diversity, abundance, and community composition were compared between sites, and between young forest stands ([approximately] 55 yrs.) and old-growth stands (400+ yrs.) within each site. Relationships of stand structural features to diversity and community composition were assessed by stratifying sampling between "diversity" plots placed in areas of greater structural diversity, such as hardwood openings and remnant old-growth trees, and "matrix" plots situated within the remaining more homogeneous conifer-dominated forest matrix. Bryophyte relationships to substrate and stand age were quantified using the method of Dufrene and Legendre, which combines a species' relative abundance and relative frequency to calculate that species' importance in relation to environmental variables. The resulting "indicator value" describes a species' reliability for indicating the given environmental parameter. Ninety-three bryophyte species were found. Thirty-nine were indicative of either humus, a decay class of coarse woody debris, or stand age. A suite of bryophytes indicated old-growth forest. These were mainly either epiphytes associated with older conifers or liverworts associated with coarse woody debris. Hardwood-associated epiphytes mainly indicated young stands. Richness, particularly for liverworts, was significantly higher in old-growth than young stands, and the two ages differed significantly in community composition Substrate (ground versus coarse woody debris) and overstory (conifers versus hardwoods) were most strongly correlated with variation in bryophyte community composition. Composition changed along the continuum of coarse woody debris decomposition from recently fallen trees with intact bark to forest floor humus. Relatively open hardwood-dominated diversity plots differed in composition from matrix plots. Bryophyte abundance was lower in denser stands and plots, and positively correlated with canopy gaps, percentage of hardwoods, and incident solar radiation. The generality of inferences derived from results is limited by the number of stands studied. Landscape level factors such as topography and prevailing slope and aspect may influence results between sites and ages. However, results suggest that 1) availability of light may limit bryophyte productivity in these stands, 2) bryophyte richness increases with stand continuity, 3) older conifers, hardwoods, and coarse woody debris foster habitat complexity and diversity of bryophytes, and 4) diversity of forest floor bryophytes will be enhanced when a full range of coarse woody debris decay classes is present. Implementation of strategies to protect these biological legacies when thinning managed stands is consistent with an ecosystem approach to forest management.
Author: Margaret Hunt Engelmann
Publisher:
ISBN:
Category : Bryophytes
Languages : en
Pages : 276
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Book Description
Author: Matt von Konrat
Publisher: Magnolia Press
ISBN: 186977597X
Category : Bryophytes
Languages : en
Pages : 280
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Book Description
Author: Marko Sabovljević
Publisher: BoD – Books on Demand
ISBN: 1838801448
Category : Science
Languages : en
Pages : 86
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Book Description
Bryophytes, a group of plants present in all terrestrial biomes of the Earth, play a significant role in ecosystems and have potential use in many life domains. They can be used in the cosmetic, pharmaceutical, and healthcare domains and can help to improve air quality, create bio-repellents and bio-pesticides, and help cure both human and animal diseases. This book discusses novel aspects of fundamental and applicative bryophyte biology.
