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Articles 7681 - 7710 of 10759

Full-Text Articles in Botany

Vitis Riparia Michx., Ralph L. Thompson, David D. Taylor Jul 1981

Vitis Riparia Michx., Ralph L. Thompson, David D. Taylor

Specimens by Name

No abstract provided.


Calopogon Tuberosus Var. Tuberosus (L.) Britton, Sterns & Poggenb., Randy L. Vogel Jul 1981

Calopogon Tuberosus Var. Tuberosus (L.) Britton, Sterns & Poggenb., Randy L. Vogel

Specimens by Name

No abstract provided.


Lysimachia Quadriflora Sims, Randy L. Vogel Jul 1981

Lysimachia Quadriflora Sims, Randy L. Vogel

Specimens by Name

No abstract provided.


Occurrence Of Psilocybin/Psilocin In Pluteus Salicinus (Pluteaceae), Stephen G. Saupe Jul 1981

Occurrence Of Psilocybin/Psilocin In Pluteus Salicinus (Pluteaceae), Stephen G. Saupe

Biology Faculty Publications

No abstract provided.


The Use Of Microscopic Vegetative Characteristics And Leaf Characteristics And Leaf Deterioration Rates In The Formulation Of Keys Of Some Wetland Plants, Bruce Foy Williams Jul 1981

The Use Of Microscopic Vegetative Characteristics And Leaf Characteristics And Leaf Deterioration Rates In The Formulation Of Keys Of Some Wetland Plants, Bruce Foy Williams

Biological Sciences Theses & Dissertations

Leaves of Spartina alterniflora, Spartina patens, Spartina cynosuroides, Distichlis spicata, Phragmites communis, Juncus roemerianus, Scirpus robustus, Typha latifolia, Iva frutescens, and Baccharis halimifolia were examined microscopically. Characteristics of each species were then used to develop identification keys. In addition, leaf fragments were buried in the marsh substrate to simulate a dredging and/or filling operation. At weekly intervals during each season of the year, a leaf fragment of each species was processed and examined to see if it could be identified.


Decay Rates And Nutrient Dynamics In Confines And Nonconfined Leaf Litter In The Great Dismal Swamp, R. Frederick K. Yates Jul 1981

Decay Rates And Nutrient Dynamics In Confines And Nonconfined Leaf Litter In The Great Dismal Swamp, R. Frederick K. Yates

Biological Sciences Theses & Dissertations

This study was designed to quantitatively compare decay rates and nutrient dynamics by the confined and unconfined litter techniques in a seasonally flooded swamp. In this study both methods indicated the same order of decay rates among sites (cedar>maple-gum>cypress> mixed hardwood), but the unconfined method showed faster decay rates at all sites. As in two years of previous data collection, the stands exhibiting some seasonal flooding showed greater decay rates than the mixed hardwood stand which was not inundated. Nutrient dynamics were not different between litter bag and leaf pack methods.

This study included a preliminary investigation of …


Morus Alba Var. Alba, John E. Ebinger Jun 1981

Morus Alba Var. Alba, John E. Ebinger

Specimens by Name

No abstract provided.


Vitis Aestivalis F.Michx., John E. Ebinger Jun 1981

Vitis Aestivalis F.Michx., John E. Ebinger

Specimens by Name

No abstract provided.


Acer Saccharinum L., John E. Ebinger Jun 1981

Acer Saccharinum L., John E. Ebinger

Specimens by Name

No abstract provided.


Maclura Pomifera (Raf.) Schneid., John E. Ebinger Jun 1981

Maclura Pomifera (Raf.) Schneid., John E. Ebinger

Specimens by Name

No abstract provided.


Acer Saccharinum L., John E. Ebinger Jun 1981

Acer Saccharinum L., John E. Ebinger

Specimens by Name

No abstract provided.


Viola Rugulosa Greene, P. Blair Jun 1981

Viola Rugulosa Greene, P. Blair

Specimens by Name

No abstract provided.


Verbena Stricta Vent., John E. Ebinger Jun 1981

Verbena Stricta Vent., John E. Ebinger

Specimens by Name

No abstract provided.


Rare Vascular Plants Of Maine : A Critical Areas Program Report, Susan C. Gawler, L. M. Eastman Jun 1981

Rare Vascular Plants Of Maine : A Critical Areas Program Report, Susan C. Gawler, L. M. Eastman

Maine Collection

Rare Vascular Plants of Maine : A Critical Areas Program Report

Based on Rare Vascular Maine Plants (1978) with Additional Herbarium Data and Rare Plants Information by L.M. Eastman.

Introduction, Criteria, Annotated Rare Plant List, Species Accounts, Additional Herbarium Data, County & Town Index Editing by Susan C. Gawler.

Executive Department, State Planning Office, 189 State Street, Augusta, Maine, 04333 (June 1981).

Contents: Acknowledgements / List of Tables / List of Figures / Part One: Introduction / Part Two: List of the Rare Vascular Plants of Maine / Part Three: Species Accounts / Part Four: Subspecific Taxa / Appendices / …


The Prairie Naturalist Volume 13, Number 2. June 1981 Jun 1981

The Prairie Naturalist Volume 13, Number 2. June 1981

The Prairie Naturalist

HERPETOFAUNA OF MORMON ISLAND PRESERVE, HALL COUNTY, NEBRASKA ▪ S. M. Jones, R. E. Ballinger and J. W Nietfeldt

COYOTE USE OF PLAYAS IN THE TEXAS HIGH PLAINS ▪ R. W. Whiteside and F. S. Guthery

NEW RECORD OF THE LEAST WEASEL IN WYOMING ▪ M. R. Stromberg, D. E. Biggens and M. Bidwell

STATUS OF AMERICAN WOODCOCK IN NEBRASKA WITH NOTES ON A RECENT BREEDING RECORD ▪ G. R. Lingle

WINTER FOODS OF THE PINE GROSBEAK IN EASTERN NORTH DAKOTA ▪ R. C. Reigh

SEASONAL VARIATION IN HOME RANGE OF A FEMALE BADGER (Taxidea taxus) ▪ R. …


Viola Sororia Willd., John E. Ebinger Apr 1981

Viola Sororia Willd., John E. Ebinger

Specimens by Name

No abstract provided.


Viola Pubescens Var. Eriocarpa (Schwein.) N.H.Russell, John E. Ebinger Apr 1981

Viola Pubescens Var. Eriocarpa (Schwein.) N.H.Russell, John E. Ebinger

Specimens by Name

No abstract provided.


Viola Pubescens Var. Eriocarpa (Schwein.) N.H.Russell, John E. Ebinger Apr 1981

Viola Pubescens Var. Eriocarpa (Schwein.) N.H.Russell, John E. Ebinger

Specimens by Name

No abstract provided.


Viola Sororia Willd., John E. Ebinger Apr 1981

Viola Sororia Willd., John E. Ebinger

Specimens by Name

No abstract provided.


Flowering Plants: Magnolias To Pitcher Plants, Robert H. Mohlenbrock Mar 1981

Flowering Plants: Magnolias To Pitcher Plants, Robert H. Mohlenbrock

Illustrated Flora of Illinois

This volume, the eighth devoted to flowering plants in the Illus­trated Flora of Illinois series, is the third of several devoted to dicotyledons, which include such well-known plants as roses, peas, mustards, mints, nightshades, milkweeds, and asters.

Mohlenbrock here represents four orders and fifteen families of plants. The orders are the Annonales, Berberidales, Nymph­aeales, and Sarraceniales. The fifteen families that comprise them are generally conceded by most botanists to be among the most primitive living plants in the world today. These orders can be characterized generally as woody in the Annonales (except for the Saururaceae and some Aristolochiaceae), herbaceous in …


The Prairie Naturalist Volume 13, Number 1. March 1981 Mar 1981

The Prairie Naturalist Volume 13, Number 1. March 1981

The Prairie Naturalist

EDITOR: Dr. Paul B. Kannowski

BOOK REVIEW EDITOR: Douglas H. Johnson

TABLE OF CONTENTS

WATERFOWL USE OF A MUNICIPAL SEWAGE LAGOON ▪ G-A. D. Maxson

MASS MORTALITY OF MUSSELS FROM SLUMPING ALONG THE RED LAKE RIVER NEAR CROOKSTON, MINNESOTA ▪ A. M. Cvancara, D. J. Brown, D. K. Cudworth, and T. R. Klett

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA — 1980 ▪ R. N. Randall

BREEDING BIRDS ON WATERFOWL PRODUCTION AREAS IN NORTHEASTERN NORTH DAKOTA ▪ H. F. Duebbert

FURTHER EVIDENCE OF MARSH HAWKS FEEDING ON DUCKS ▪ R. A. Wishert, R. M. Kaminski, and D. W. Soprovich

FIRST NEST …


Function Of Mentzelia Nuda (Loasaceae) Postfloral Nectaries In Seed Defense, Kathleen H. Keeler Feb 1981

Function Of Mentzelia Nuda (Loasaceae) Postfloral Nectaries In Seed Defense, Kathleen H. Keeler

School of Biological Sciences: Faculty Publications

Mentzelia nuda is a coarse, short-lived perennial of the High Plains of North America. The flowers secrete nectar which serves as an attractant for pollinating bees. Postfloral nectar secretion attracts ants whose presence significantly enhances seed set. This is the first demonstration of advantage to postflowering activity of a floral nectary.


Front Matter, Vol. 5 Feb 1981

Front Matter, Vol. 5

Great Basin Naturalist Memoirs

No abstract provided.


End Matter, Vol. 5, Index Feb 1981

End Matter, Vol. 5, Index

Great Basin Naturalist Memoirs

No abstract provided.


End Matter, Vol. 5 Feb 1981

End Matter, Vol. 5

Great Basin Naturalist Memoirs

No abstract provided.


Full Issue, Vol. 5 Feb 1981

Full Issue, Vol. 5

Great Basin Naturalist Memoirs

No abstract provided.


The Bell Natural History Museum, An Aid To Teaching Botany, Harold W. Hansen Jan 1981

The Bell Natural History Museum, An Aid To Teaching Botany, Harold W. Hansen

Journal of the Minnesota Academy of Science

Much of the regular academic year does not lend itself to observation of plants in their natural habitat outdoors. The museum exhibits can serve as study aids in the off season, although they should not be utilized as substitutes for field work. This study systematized some materials available for class use. Museum files, display legends, and original observations were used. From the Bell Museum of Natural History, 112 exhibits were listed and coded for location; 384 specimens, of 247 species were listed from individual displays; a massed alphabetized species index was prepared. The exhibit "Maple-Basswood Forest" was studied in detail; …


Composition Of Goldenrod (Solidago: Compositae) Populations By Species In The Upper Midwest, William E. Miller Jan 1981

Composition Of Goldenrod (Solidago: Compositae) Populations By Species In The Upper Midwest, William E. Miller

Journal of the Minnesota Academy of Science

In each of 100 abandoned agricultural fields grown over with goldenrod, stems were diagnosed and counted in 20 occupied 0.4 M plots selected by hoop tossing. Preliminary results differed little between hoop tossing and random plot selection, and between 0.9 and 0.4 m plot sizes. In rank order of stem abundance the taxa were Solidago altissima L. S. canadensis L. complex S. gigantea Ait. S. graminifolia (L.) Saliab. S. nemoralis Ait. S. ulmifolia muhl. others. An average of 2.2 taxa were recorded per field, and three or more taxa in at least one plot in 34 percent of fields. Where …


Phoradendron Tomentosum Oliver, John E. Ebinger Jan 1981

Phoradendron Tomentosum Oliver, John E. Ebinger

Specimens by Name

No abstract provided.


Verbena Tenuisecta Briq., John E. Ebinger Jan 1981

Verbena Tenuisecta Briq., John E. Ebinger

Specimens by Name

No abstract provided.