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Articles 9541 - 9570 of 10756

Full-Text Articles in Botany

Viola Striata Aiton, John E. Ebinger Apr 1968

Viola Striata Aiton, John E. Ebinger

Specimens by Name

No abstract provided.


Viola Cucullata Moc. & Sessé Ex Ging., J. Reed Apr 1968

Viola Cucullata Moc. & Sessé Ex Ging., J. Reed

Specimens by Name

No abstract provided.


Dodecatheon Meadia L., John E. Ebinger Apr 1968

Dodecatheon Meadia L., John E. Ebinger

Specimens by Name

No abstract provided.


Viola Sororia Willd., John E. Ebinger Apr 1968

Viola Sororia Willd., John E. Ebinger

Specimens by Name

No abstract provided.


Claytonia Virginica L., John E. Ebinger Apr 1968

Claytonia Virginica L., John E. Ebinger

Specimens by Name

No abstract provided.


Dodecatheon Meadia L., G. A. Hellinga Apr 1968

Dodecatheon Meadia L., G. A. Hellinga

Specimens by Name

No abstract provided.


Viola Pubescens Var. Eriocarpa (Schwein.) N.H.Russell, G. A. Hellinga Apr 1968

Viola Pubescens Var. Eriocarpa (Schwein.) N.H.Russell, G. A. Hellinga

Specimens by Name

No abstract provided.


Floral Morphology And Phylogeny In The Hydrocharitaceae, Robert B. Kaul Mar 1968

Floral Morphology And Phylogeny In The Hydrocharitaceae, Robert B. Kaul

School of Biological Sciences: Faculty Publications

The vascular anatomy of 13 of the 15 genera of the Hydrocharitaceae has been studied, and certain aspects of floral morphology are considered. The flowers of the family show a broad range of specialized structures combined with primitive characteristics. The origin of paired and single stamens is interpreted as probable modifications of fascicled stamens. Extreme reduction in the androecium is shown for several genera. Tendencies toward reduction and fusion within the gynoecium are pronounced. Most genera are at least slightly syncarpous, but a few are apocarpous. The inferior ovary is appendicular in nature, with some genera exhibiting more complete fusion …


The Prairie Naturalist Volume 1. No.1. March 1968 Mar 1968

The Prairie Naturalist Volume 1. No.1. March 1968

The Prairie Naturalist

EDITORIAL: Another Milestone ▪ John T. Lokemoen

NESTING OF THE COMMON SNIPE IN NORTH DAKOTA ▪ Robert E. Stewart and Harold A. Kantrud

SCIENCE WRITING — A PROBLEM ▪ Soren O. Kolstoe

INSECTICIDES: A DOUBLE-EDGED SWORD ▪ Richard D. Urban

NOTES

Why I like the Badlands ▪ Wayne Hecker

White-faced ibis in McIntosh County, North Dakota ▪ Harold F. Duebbert

Cinnamon teal observations in North Dakota ▪ A. T. Klett and John T. Lokemoen

Trumpeter swan in Kidder County, North Dakota ▪ Lewis M. Cowardin and James C. Bartonek

Specimen records of greater scaup ▪ Charles W. Dane and Harold …


Phyla Lanceolata (Michx.) Greene, Dan K. Evans Feb 1968

Phyla Lanceolata (Michx.) Greene, Dan K. Evans

Specimens by Name

No abstract provided.


Floral Development And Vasculature In Hydrocleis Nymphoides (Butomaceae), Robert B. Kaul Feb 1968

Floral Development And Vasculature In Hydrocleis Nymphoides (Butomaceae), Robert B. Kaul

School of Biological Sciences: Faculty Publications

The flower of Hydrocleis nymphoides consists of three sepals which arise in spiral succession, three simultaneously arising petals, numerous stamens and staminodia which arise in centrifugal order, and six carpels. A residual apex remains at maturity. The first-formed members of the androecium are stamens and the later-formed members are staminodia which develop below the stamens and which become outwardly displaced during expansion of the receptacle. The androecium is supplied by branching vascular trunk bundles. The carpels are completely open but the ventral margins are slightly conduplicately appressed basally. A single dorsal bundle provides the stigmatic area with vascular tissue, and …


A Preliminary Study On Ensiling Aspen Bark, Charles Helleloid, John Klow, Gary Pullar, John Veranth Jan 1968

A Preliminary Study On Ensiling Aspen Bark, Charles Helleloid, John Klow, Gary Pullar, John Veranth

Journal of the Minnesota Academy of Science

A preliminary study was conducted on the ensiling of aspen bark in laboratory silos for the production of animal food. Several types of silo, both with and without an enzyme preparation, were tested. Results of physical and chemical tests on the contents indicate that definite changes occur when bark is ensiled, and that these changes differ with ensiling conditions. Several of these changes suggest possibilities for future research.


Mature Pine Forests In Duluth Harbor Area, Donald W. Davidson, John B. Bernard Jan 1968

Mature Pine Forests In Duluth Harbor Area, Donald W. Davidson, John B. Bernard

Journal of the Minnesota Academy of Science

Quantitative and qualitative studies have been made on mature pine forests of selected areas on Minnesota Point and Wisconsin Point in the Duluth-Superior Harbor area. The forests were sampled by the point quarters method. The leading dominant in the Minnesota forest was Pinus resinosa, while the leading dominant in the Wisconsin forest was Pinus strobus. Trees up to 173 years of age were found on Minnesota Point, while the maximum age of the trees sampled on Wisconsin Point was 142 years. A total of 87 species of vascular plants were identified in the two areas.


Scotch Pine: Variation And Performance In Minnesota, Muhammad A. K. Khalil Jan 1968

Scotch Pine: Variation And Performance In Minnesota, Muhammad A. K. Khalil

Journal of the Minnesota Academy of Science

Scotch pine exhibits clinal variation from north to south in two characteristics: viz., the number of days after April 15 to the time of maximum rote of height growth, and total height after the age of 17 years. There is east-west clinal variation with respect to two characteristics: viz., the number of days after April 15 to the beginning of height growth, and to the time of the maximum rote of height growth. The twelve out of the fifteen varieties analyzed showed the existence of valid sub-varieties or ecotypes. Varieties from central Europe were the fastest growing in each of …


Dwarf Mistletoe Parasite In Spruce, F. H. Tainter, D. W. French Jan 1968

Dwarf Mistletoe Parasite In Spruce, F. H. Tainter, D. W. French

Journal of the Minnesota Academy of Science

Locations of all known major infection centers of dwarf mistletoe (Arceuthobium pusillum) in Minnesota are presented and compared to botanical ranges of important hosts. A brief summary of disease symptoms and identification of the parasite are included.


Front Matter, Vol. 9 No. 3 Jan 1968

Front Matter, Vol. 9 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Taxonomic Review : Miridae Of The Nevada Test Site And The Western United States, Harry H. Knight Jan 1968

Taxonomic Review : Miridae Of The Nevada Test Site And The Western United States, Harry H. Knight

Brigham Young University Science Bulletin, Biological Series

Approximately 5,000 specimens of plant bugs were collected at the Nevada Test Site between 1959 and 1965. Greatest emphasis was given to collecting from June 10–24, 1965, when the desert areas at the test site were unusually profuse with blooming vegetation. A total of 160 species representing 50 genera was taken at the test site. Of these, 7 genera and 96 species are new to science.

Comparative data for these and additional species from other parts of western North America are also included. These represent an additional 449 species, of which 5 genera and 148 species are new to science. …


Verbena Hastata L., Norman Tracy Jan 1968

Verbena Hastata L., Norman Tracy

Specimens by Name

No abstract provided.


Synopsis Of A Putatively Phylogenetic Classification Of The Flowering Plants, Robert F. Thorne Jan 1968

Synopsis Of A Putatively Phylogenetic Classification Of The Flowering Plants, Robert F. Thorne

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Flora Of The Santa Rosa Plateau Of The Santa Ana Mountains, California, Earl W. Lathrop, Robert F. Thorne Jan 1968

Flora Of The Santa Rosa Plateau Of The Santa Ana Mountains, California, Earl W. Lathrop, Robert F. Thorne

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Sandersoniomyces, A New Genus Of Laboulbeniales Allied To Diplomyces, Symplectromyces And Teratomyces, Richard K. Benjamin Jan 1968

Sandersoniomyces, A New Genus Of Laboulbeniales Allied To Diplomyces, Symplectromyces And Teratomyces, Richard K. Benjamin

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Balazucia, A New Genus Of Laboulbeniales Allied To Cucujomyces Spegazzini, Richard K. Benjamin Jan 1968

Balazucia, A New Genus Of Laboulbeniales Allied To Cucujomyces Spegazzini, Richard K. Benjamin

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


A Survey Of Herbaceous Vegetation In Baber Woods, Lois M. Kloker Jan 1968

A Survey Of Herbaceous Vegetation In Baber Woods, Lois M. Kloker

Masters Theses

No abstract provided.


Vegetation Survey Of Floodplain Forests In East-Central Illinois, Richard W. Crites Jan 1968

Vegetation Survey Of Floodplain Forests In East-Central Illinois, Richard W. Crites

Masters Theses

No abstract provided.


The Claremont Herbarium, Philip A. Munz Jan 1968

The Claremont Herbarium, Philip A. Munz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Records Of The Higher Fungi Of Minnesota, Margaret G. Weaver, Robert L. Shaffer Jan 1968

Records Of The Higher Fungi Of Minnesota, Margaret G. Weaver, Robert L. Shaffer

Journal of the Minnesota Academy of Science

This paper, presenting an annotated list of 203 species of Ascomycetes and Basidiomycetes of Minnesota, is the first published report of the occurrence of many of the species in the state. The collections on which the list is based were made in five Minnesota counties and are deposited in the senior author's herbarium at Faribault, Minnesota, and in the University of Michigan Herbarium at Ann Arbor, Michigan.


Heart-Leaf Poison, River Poison, Stirling Range Poison, T E H Aplin Jan 1968

Heart-Leaf Poison, River Poison, Stirling Range Poison, T E H Aplin

Journal of the Department of Agriculture, Western Australia, Series 4

THIS article deals with heart-leaf poison, river poison and Stirling Range poison, all more or less restricted to the lower South-Western Region of Western Australia.


Enigma Of Penstemon Tenuis Small (Scrophulariaceae), Aileen L. Mcwilliam Jan 1968

Enigma Of Penstemon Tenuis Small (Scrophulariaceae), Aileen L. Mcwilliam

Journal of the Arkansas Academy of Science

No abstract provided.


Coreopsis Saxicola Alex. Var. Duncanii Sherff (Compositae) In Arkansas, Edwin B. Smith Jan 1968

Coreopsis Saxicola Alex. Var. Duncanii Sherff (Compositae) In Arkansas, Edwin B. Smith

Journal of the Arkansas Academy of Science

No abstract provided.


Report On The Gramineae Of The Arkansas Springfield Plateau, Albert Robinson Jr. Jan 1968

Report On The Gramineae Of The Arkansas Springfield Plateau, Albert Robinson Jr.

Journal of the Arkansas Academy of Science

No abstract provided.