The Lichen Genus Peltigera Lichenized Ascomycetes In Alberta PDF Download
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Author | : Bernard Goffinet |
Publisher | : |
Total Pages | : 66 |
Release | : 1994 |
Genre | : Science |
ISBN | : |
Download The Lichen Genus Peltigera (lichenized Ascomycetes) in Alberta Book in PDF, ePub and Kindle
Floristic treatment of species of the genus Peltigera, the first made in light of recent taxonomic developments. The report summarizes the diversity of the genus occurring in Alberta and makes available a comprehensive key to the local species. A morphological description is provided for all species and each is illustrated by photographs. All Albertan specimens examined were mapped. A discussion on variation and some information on ecology and distribution in Alberta follows each description. General distribution patterns for North America are based on literature and additional North American collections examined.
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Total Pages | : |
Release | : 1994 |
Genre | : |
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Download Lichen Genus Peltigera (Lichenized Ascomycetes) in Alberta Book in PDF, ePub and Kindle
Author | : David J. Galloway |
Publisher | : |
Total Pages | : 71 |
Release | : 2000 |
Genre | : Lichens |
ISBN | : |
Download The Lichen Genus Peltigera (Peltigerales: Ascomycota) in New Zealand Book in PDF, ePub and Kindle
Author | : Steven D. Leavitt |
Publisher | : |
Total Pages | : 244 |
Release | : 2010 |
Genre | : |
ISBN | : |
Download Assessing Traditional Morphology- and Chemistry-based Species Circumspections in Lichenized Ascomycetes Book in PDF, ePub and Kindle
Accurate species delimitation has critical implications for ecological and conservation studies; and for understanding factors driving diversification. However, a growing body of evidence indicates that morphology-based species circumspection in lichenized ascomycetes often fails to accurately represent the number of fungal species. The use of molecular data in lichen systematics provides an important alternative to traditional morphological characters for identifying natural groups and assessing evolutionary histories in challenging lichen taxa. In this work, I examined two common lichen-forming genera in western North America, Rhizoplaca and Xanthoparmelia, as models for investigating character evolution, species delimitation in morphologically and chemically diverse species, and identification of lineages in the early stages of divergence. Phylogenetic hypotheses were reconstructed to assess character evolution using sequence data from four nuclear ribosomal markers and fragments from two nuclear loci. I applied a multifaceted approach to delimit species in Rhizoplaca and Xanthoparmelia by assembling multiple lines of evidence using DNA sequence data, and genealogical and population genetic analyses. I have found that traditionally circumscribed species are not supported by molecular data. For example, in Rhizoplaca previously unrecognized lineages were identified within what has thus far been considered a single species. In contrast, morphologically and chemically distinct species within Xanthoparmelia were not supported by molecular data. Distinct medullary chemistries, growth forms, and the production of vegetative diaspores appear to have evolved independently multiple times in Xanthoparmelia. This work clearly indicates that morphological and chemical characters do not always accurately reflect lichen species diversity within even the best known and studied genera. My study of the Rhizoplaca melanophthalma species complex demonstrates that the genus Rhizoplaca, as presently circumscribed, is more diverse in western North American than previously thought. I present these analyses as a working example of species delimitation in morphologically cryptic lichenized fungi. In Xanthoparmelia diagnostic morphological and chemical characters have evolved in a highly homoplasious manner. In contrast to other studies documenting previously undiscovered fungal lineages masked within lichen species circumscribed by traditional morphological and chemical characters, my work suggests that species diversity has been overestimated in the lichen genus Xanthoparmelia.
Author | : |
Publisher | : DIANE Publishing |
Total Pages | : 74 |
Release | : 1997 |
Genre | : Botany |
ISBN | : 1428913297 |
Download A Floristic Inventory and Spatial Database for Fort Wainright, Interior Alaska Book in PDF, ePub and Kindle
Author | : Larry L. Saint Clair |
Publisher | : Brigham Young University Press |
Total Pages | : 254 |
Release | : 1999 |
Genre | : Science |
ISBN | : |
Download A Color Guidebook to Common Rocky Mountain Lichens Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 788 |
Release | : 2002 |
Genre | : Lichens |
ISBN | : |
Download Lichen Flora of the Greater Sonoran Desert Region: Most of the microlichens, balance of the macrolichens, and the lichenicolous fungi Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 644 |
Release | : 1998 |
Genre | : Botany |
ISBN | : |
Download Canadian Journal of Botany Book in PDF, ePub and Kindle
Author | : John David Beckingham |
Publisher | : Canadian Forest Service |
Total Pages | : 542 |
Release | : 1996 |
Genre | : Nature |
ISBN | : |
Download Field Guide to Ecosites of Northern Alberta Book in PDF, ePub and Kindle
An ecological classification system was developed for Northern Alberta through the analysis of vegetation, soil, site, and forest productivity information. The hierarchical classification system has three levels - ecosite, ecosite phase and plant community type. Thirty-eight ecosites are described with further detail provided by subdivision into ecosite and ecosite phase and plant community type. A soil type classification system that describes 17 soil types was also developed. Management interpretations were made for drought, excess moisture, soil rutting hazard, soil compaction hazard, puddling hazard, soil erosion hazard, frost heave hazard, soil temperature limitations, vegetation competition, and windthrow hazard. Colour photos and drawings for 87 common plants of northern Alberta are presented.
Author | : |
Publisher | : |
Total Pages | : 564 |
Release | : 1993 |
Genre | : Botany |
ISBN | : |
Download Acta Botanica Fennica Book in PDF, ePub and Kindle