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Articles 1 - 9 of 9

Full-Text Articles in Life Sciences

Sweet Bay, Virginia Magnolia Magnolia Virginiana L., Gene Silberhorn Nov 1991

Sweet Bay, Virginia Magnolia Magnolia Virginiana L., Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.


Proton Induced X-Ray Emission Analysis Of Biological Specimens - Past And Future, B. Forslind, K. G. Malmqvist, J. Pallon Sep 1991

Proton Induced X-Ray Emission Analysis Of Biological Specimens - Past And Future, B. Forslind, K. G. Malmqvist, J. Pallon

Scanning Microscopy

Proton induced X-ray emission (PIXE) analysis is a comparatively new member of the family of spectrographic methods. In the last decade PIXE techniques have been applied to biological problems with great success. This review gives a condensed presentation of recent developments in biological (medical, zoological, and botanical) applications of PIXE analysis with special focus on factors which commonly influence the results, such as calibration, contamination, and preparation. The great advantage of PIXE analysis in studying physiologically important trace elements such as Zn, Mg, Fe, and Cu is underlined. Elemental mapping not only allows quantitative elemental analysis, but can also demonstrate …


Marsh Hibiscus, Rose Mallow, Swamp Cotton Hibiscus Moscheutos L., Gene Silberhorn Sep 1991

Marsh Hibiscus, Rose Mallow, Swamp Cotton Hibiscus Moscheutos L., Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.


Tb146: The Eccentric Bogs Of Maine: A Rare Wetland Type In The United States, Ronald B. Davis, Dennis S. Anderson Aug 1991

Tb146: The Eccentric Bogs Of Maine: A Rare Wetland Type In The United States, Ronald B. Davis, Dennis S. Anderson

Technical Bulletins

The specific objectives of this project were to (1) map the distribution in Maine of eccentric bogs; (2) map the surface physical features and vegetation of a large sample of Maine's eccentric bogs; (3) determine for these bogs the vascular plant, bryophyte, and lichen flora; types and structure of vegetation; peat interstitial water chemistry; relationships between vegetation-flora and water chemistry; subsurface features relating to origins and development; and (4) evaluate the bogs for their unique and exemplary characteristics an d recommend certain of them to the Maine Critica l Areas Program for designation as Critical Areas.


Red Maple Acer Rubrum L., Gene Silberhorn Jul 1991

Red Maple Acer Rubrum L., Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.


Pickerelweed Tuckahoe Pontederia Cordata L., Gene Silberhorn May 1991

Pickerelweed Tuckahoe Pontederia Cordata L., Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.


Arrowhead, Duck Potato Sagittaria Latifolia Willd., Gene Silberhorn Mar 1991

Arrowhead, Duck Potato Sagittaria Latifolia Willd., Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.


Tb143: Reproductive Phenologies Of Selected Flowering Plants In Eastern Maine Forests, R. W. Hansen, S. B. Hansen, E. A. Osgood Jan 1991

Tb143: Reproductive Phenologies Of Selected Flowering Plants In Eastern Maine Forests, R. W. Hansen, S. B. Hansen, E. A. Osgood

Technical Bulletins

This technical bulletin documents both flowering and fruiting patterns during the spring and summer of 1982 of plant species found in eastern Maine forests.


Reed Grass, Phragmites Phragmites Australis (Cav.) Trin. Ex. Steud., Gene Silberhorn Jan 1991

Reed Grass, Phragmites Phragmites Australis (Cav.) Trin. Ex. Steud., Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.