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Articles 6241 - 6270 of 10757
Full-Text Articles in Botany
Acer Negundo L., Bob Edgin
Morus Alba L., Bob Edgin
Acer Circinatum Pursh, Gordon C. Tucker
Viola Sororia Willd., John E. Ebinger
Claytonia Virginica L., John E. Ebinger
Survey Of Exotic Plants Along The Blue Ridge Parkway Between Lower Otter Creek And Sunset Field, Cynthia Diane Gastineau Lane
Survey Of Exotic Plants Along The Blue Ridge Parkway Between Lower Otter Creek And Sunset Field, Cynthia Diane Gastineau Lane
Theses & Honors Papers
The objective of this study was to identify and inventory exotic plant vegetation along a portion of the Blue Ridge Parkway and to determine which species, if any, are invading the adjacent forest and the extent to which these invasions occur. The methods used were derived from those developed by James Akerson at Shenandoah National Park in 1997. Six transects were studied along the Blue Ridge Parkway. Each transect included two to five 100 square meter plots. The first plot of each site was centered at the border between the mowed area and the natural area. The second plots were …
Claytonia Virginica L., Vern Lagesse, I. Ingram
Claytonia Virginica L., Vern Lagesse, I. Ingram
Specimens by Name
No abstract provided.
Viola Sororia Willd., Vern Lagesse, I. Ingram
Arkansas Cotton Variety And Strain Tests 1998, Fred M. Bourland, G. M. Palmer, J. M. Hornbeck, C. D. Capps Jr.
Arkansas Cotton Variety And Strain Tests 1998, Fred M. Bourland, G. M. Palmer, J. M. Hornbeck, C. D. Capps Jr.
Arkansas Agricultural Experiment Station Research Series
The primary aim of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties in the major cotton growing areas in Arkansas. This information helps seed dealers establish marketing strategies and assists producers in choosing varieties to plant. In this way the annual test facilitates the inclusion of new, improved genetic material into Arkansas cotton production. The 1998 test had 58 entries (including 19 transgenic genotypes and 21 first-year entries), which were evaluated at six sites in eastern Arkansas. The presence of four transgenic and five first-year entries among the top 10 yielding …
Native Vegetation Handbook For The Shire Of Kondinin, Bec Ryan
Native Vegetation Handbook For The Shire Of Kondinin, Bec Ryan
Bulletins 4000 -
This booklet provides land managers with information relating to the natural resources of the Shire of Kondinin, including the landscape, geology, soils, drainage systems, native flora and fauna. Information about native flora and vegetation has been drawn from a variety of sources, including surveys that estimated the distribution of plant communities prior to clearing, recent surveys of privately owned remnants, herbarium collections, surveys of nature reserves and roadside surveys. Some of the problems relating to the management of these resources within the shire and ideas or community initiatives to solve these problems are also discussed. It is hoped that this …
The Prairie Naturalist Volume 31, No.1 March 1999
The Prairie Naturalist Volume 31, No.1 March 1999
The Prairie Naturalist
NEST SITE CHARACTERISTICS OF RING-NECKED PHEASANTS IN EASTERN SOUTH DAKOTA ▪ J. R. Purvis, A. E. Gabbert, and L. D. Flake
FIELD EVALUATION OF RADIOTRANSMITTERS FOR NORTHERN POCKET GOPHERS ▪ G. W. Witmer and M. J. Pipas
DISTRlBllTiON OF A MOlJND-BUILDING ANT ON NATIVE AND RESTORED PRAIRIES IN NORTHEASTERN KANSAS ▪ J. Foster and W. D. Kettle
RESULTS OF A WILD TURKEY RELEASE IN KANSAS TALLGRASS PRAIRIE ▪ J. F. Cully, Jr., P. R. Lemons, II, and R. D. Applegate
BODY-SIZE AND AGE'-RELATED MASTICATORY RELATIONSHIPS IN TWO SPECIES OF BLARINA ▪ B. J. Verts, L. N. Carraway, and R. A. …
David Grandy's Review Of David Philip Miller And Peter Hanns Reill's Visions Of Empire: Voyages, Botany, And Representations Of Nature, David Grandy
Pacific Studies
No abstract provided.
Native Vegetation Handbook For The Shire Of Lake Grace, Bec Ryan
Native Vegetation Handbook For The Shire Of Lake Grace, Bec Ryan
Bulletins 4000 -
This handbook provides land managers with information relating to the natural resources of the Shire of Lake Grace, including the landscape, geology, soils, drainage systems, native flora and fauna. Information about native flora and vegetation has been drawn from a variety of sources, including surveys that estimated the distribution of plan communities prior to clearing, recent surveys of privately owned remnants, herbarium collections, surveys of nature reserves and roadside surveys. Some of the problems relating to the management of these resources within the shire and ideas and community initiatives to solve these problems are also discussed. It is hoped that …
Sfa Gardens Newsletter, Mar 1999, Sfa Gardens, Stephen F. Austin State University
Sfa Gardens Newsletter, Mar 1999, Sfa Gardens, Stephen F. Austin State University
SFA Gardens Newsletters
No abstract provided.
Herbicide Evaluation In Arkansas Rice, 1997, Ron Talbert, Ford Baldwin, David Gealy, Eric Webster, Tomilea Dillon, Lance Schmidt, Jeff Rutledge, Celeste Wheller, Leopoldo Estorninos Jr.
Herbicide Evaluation In Arkansas Rice, 1997, Ron Talbert, Ford Baldwin, David Gealy, Eric Webster, Tomilea Dillon, Lance Schmidt, Jeff Rutledge, Celeste Wheller, Leopoldo Estorninos Jr.
Arkansas Agricultural Experiment Station Research Series
Weed control is economically important for production of rice, a major crop in Arkansas. These findings summarize efforts of the team of Arkansas scientists working on weed control strategies for rice during 1997. Various technologies were evaluated in field studies at five locations involving the major weed problems and rice production systems used in the state. Results from these studies will add to the arsenal of weed control options for producers. Highlights include synergists and safeners for herbicides to aid in control of propanil-resistant barnyardgrass; herbicides and flooding techniques for control of red rice and other weeds; and the use …
Native Vegetation Handbook For The Shire Of Kulin, Bec Ryan
Native Vegetation Handbook For The Shire Of Kulin, Bec Ryan
Bulletins 4000 -
This handbook provides land managers with information relating to the natural resources of the Shire of Kulin, including the landscape, geology, soils, drainage systems, native flora and fauna. Information about native flora and vegetation has been drawn from a variety of sources, including surveys that estimated the distribution of plant communities prior to clearing, recent surveys of privately owned remnants, herbarium collections, surveys of nature reserves and roadside surveys. Some of the problems relating to the management of these resources within the Shire and ideas and community initiatives to solve these problems are also discussed. It is hoped that this …
Field Evaluation Of Herbicides On Small Fruit, Vegetable, And Ornamental Crops, 1997, Ron Talbert, Lance A. Schmidt, Jennifer A. Wells, Jeff S. Rutledge, Dolores A. Parker
Field Evaluation Of Herbicides On Small Fruit, Vegetable, And Ornamental Crops, 1997, Ron Talbert, Lance A. Schmidt, Jennifer A. Wells, Jeff S. Rutledge, Dolores A. Parker
Arkansas Agricultural Experiment Station Research Series
Growers generally use herbicides to efficiently produce high-quality fruit and vegetables for processing or fresh market sales. Due to the smaller acreage of these crops compared to major field crops, fewer herbicides are registered for use in fruit and vegetable crops than for field crops. Each year, new herbicides are evaluated under Arkansas growing conditions with the objective of improving the herbicide technology for the grower, processor, and ultimately the consumer. This report includes studies on the control of many of the more serious weed problems in important crops of this region, including snapbeans, spinach, southern pea, watermelon, cantaloupe, tomato, …
A Color Guidebook To Common Rocky Mountain Lichens, Larry L. St. Clair
A Color Guidebook To Common Rocky Mountain Lichens, Larry L. St. Clair
Books by Faculty of the Monte L. Bean Life Science Museum
This guidebook provides information about common lichens from the northern Rocky Mountains south into the Great Basin, Colorado Plateau, and the Sky Island Mountains of southeastern Arizona and southwestern New Mexico.
Table of Contents
Dedication
Acknowledgments
Introduction
- Lichens as symbiotic systems
- Morphology
- Reproduction
- Physiology and growth
- Secondary chemistry
- Ecology
Lichens as Biomonitors of Air Quality
- Overview
- Lichen sensitivity to air pollutants
- Methods of evaluating air pollution impact on lichens
Lichen Systematics
- Classification of lichens
- Essential tools for identifying lichens
- Collection and curation of lichen specimens
- Dichotomous keys to common Rocky Mountain lichens
Common Rocky Mountain Lichens (Color photographs, descriptive information, …
A Medicinal Plant Survey In Marketplaces Of Ecuador, Pamela Bailey
A Medicinal Plant Survey In Marketplaces Of Ecuador, Pamela Bailey
Theses, Dissertations and Capstones
A medicinal herb survey was conducted in ten major marketplaces in Andean and coastal communities of Ecuador. Collections were made during the summer of 1997. Four plant collections from each market were pressed, dried, identified, and the medicinal information for each plant was recorded. Photographs of fresh plants, market vendors and the marketplaces were taken.
Fifty three families were represented in the 112 species collected. Forty-two species (37%) were introduced to Ecuador while seventy species (63%) were native to Ecuador. Plant taxa were grouped into 22 categories of medicinal usage. The most common 3 uses were: 1. General tonic and …
Native Vegetation Handbook For The Shire Of Northam, Sarah J. Weaving
Native Vegetation Handbook For The Shire Of Northam, Sarah J. Weaving
Native vegetation handbook series
This booklet provides land managers with information relating to the natural resources of the Shire of Northam, including the existing and original vegetation, fauna and flora, drainage systems, topography and soils. Some of the problems relating to the management of these resources within the Shire and community initiatives to deal with these problems are also discussed. It is hoped that this information will contribute to the long term viability of the agricultural landscape and the conservation of native vegetation within the Shire.
A Floristic Study Of Sugarloaf Ridge State Park, Sonoma County, California, Frederica S. Bowcutt
A Floristic Study Of Sugarloaf Ridge State Park, Sonoma County, California, Frederica S. Bowcutt
Aliso: A Journal of Systematic and Floristic Botany
A ist of 400 vascular plants was compiled for Sugarloaf Ridge State Park, a 1142 hectare (2820 acre) park in the outer North Coast Ranges within Sonoma County and adjacent western Napa County, California. Relatively undisturbed stands of native perennial bunchgrasses occur the understory In portions of both the oakwood land and the mixed evergreen forest. Grasslands on serpentine in the park are typically dominated by Nassella. One of the sttlte's eastentmost coast redwood forests occurs in the park. Nonnative Centaurea solstitialis rapidly invades annual grasslands and other disturbed in the park. The California Oepanment of and Recreation (DPR) …
Potential Utility Of Chloroplast Trnl (Uaa) Gene Intron Sequences For Inferring Phylogeny In Scrophulariaceae, C. Edward Freeman, Ron Scogin
Potential Utility Of Chloroplast Trnl (Uaa) Gene Intron Sequences For Inferring Phylogeny In Scrophulariaceae, C. Edward Freeman, Ron Scogin
Aliso: A Journal of Systematic and Floristic Botany
Whereas chloroplast DNA-derived sequence data from protein coding regions have been utilized successfully at many taxonomic levels in recent years, sequences which are variable enough to allow for efficient phylogenetic inference (maximum information with relatively low sequencing costs and effort) at the subfamilial level huve been few. Sequence data were obtained in this study from a noncoding region, the trnL (UAA) gene intron, from a selection of taxa from the Scrophulariaceae and closely related families (representing 41 species in 26 genera). Groups of species from commonly recognized tribes and subtribes were included to determine if these taxa were grouped together …
A Vegetation Analysis Of Plant Communities In And Around Selected Holding Ponds At Mcclintic Wildlife Management Area, Mason County, West Virginia, Russell Bowman Shrader
A Vegetation Analysis Of Plant Communities In And Around Selected Holding Ponds At Mcclintic Wildlife Management Area, Mason County, West Virginia, Russell Bowman Shrader
Theses, Dissertations and Capstones
This study was conducted as an analysis of vegetation in and around four ponds at McClintic Wildlife Management Area (MWMA), located in Mason County, West Virginia. The MWMA is the former West Virginia Ordnance Works (WVOW), having served as a trinitrotoluene (TNT) manufacturing site from 1941-1946. Such history presents the area with unique conditions resulting in diverse types and amounts of plants, since any type of forest disturbance, regardless of cause, alters ecosystem functions. This project was originally designed as part of a groundwater pump-and-treat plan for MWMA, where potential impacts of groundwater removal to ponds and the associated plant …
Laboulbeniales On Semiaquatic Heteroptera. Viii. Monandromyces, A New Genus Based On Autophagomeces Microveliae(Laboulbeniales), Richard K. Benjamin
Laboulbeniales On Semiaquatic Heteroptera. Viii. Monandromyces, A New Genus Based On Autophagomeces Microveliae(Laboulbeniales), Richard K. Benjamin
Aliso: A Journal of Systematic and Floristic Botany
A new genus of Laboulbeniales (Laboulbeniaceae: Stigmatomycetinae), Monandromyces, was described. Its type species, M. hemipteralis, was based on Autophagomyces hemipteralis. The latter, which parasitizes a riparian bug, a species of Microvelia (Heteroptera: Veliidae), was characterized by Roland Thaxter in 1931. Ten new species of Monandromyces- taken from members of three genera of Veliidae-were described as follows: M. australis, M. falcatus, M. polhemorum, M. protuberans, M. tenuistipitis, and M. umbonatus (on Microvelia spp.); M. neoalardi (on Neoalardus sp.); and M. elongates, M. longispinae, and M. pseudoveliae (on Pseudovelia spp.). Keys …
Articulated Cork In Calotropis Procera (Asclepiadaceae), Simcha Lev-Yadun
Articulated Cork In Calotropis Procera (Asclepiadaceae), Simcha Lev-Yadun
Aliso: A Journal of Systematic and Floristic Botany
The cork of the small tree. Calotropis procera, which grows in a very hot district of Israel, is remarkable for its thickness and brittleness. The cork of the stems and large branches is composed of longitudinal ridges that extend over several internodes. The cork ridges have deep fissures around the circumference at almost every node. I propose that these nodal fissures in the cork serve as joints for two functions: (1) to prevent breakage of the fragile cork layer when branches bend under wind stress, and (2) to allow thermal expansion while avoiding tissue cracking on extremely hot days, …
The Palms (Arecaceae) Of Sonora, Mexico, Richard S. Felger, Elaine Joyal
The Palms (Arecaceae) Of Sonora, Mexico, Richard S. Felger, Elaine Joyal
Aliso: A Journal of Systematic and Floristic Botany
This publication is an account of the palms (Arecaceae) in the state of Sonora in northwestern Mexico. Six native palm species in three genera are recorded for Sonora: Brahea with four species, and Sabal and Washingtonia each with one species. Relationships and taxonomy within Brahea, especially B. elegans, remain unresolved. Brief botanical descriptions, taxonomic synopses, local names, identification keys, conservation status and recommendations, and distributional and ethno- botanical information are provided for each species. Basionyms and types are cited. Distributions are documented with citations of nearly all herbarium specimens known to us from Sonora. Many palm populations in …
Wood Anatomy Of Agdestis (Caryophyllales): Systematic Position And Nature Of Successive Cambia, Sherwin Carlquist
Wood Anatomy Of Agdestis (Caryophyllales): Systematic Position And Nature Of Successive Cambia, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
Features in which Agdestis differs from Phytolaccaceae s. s. include presence of both libriform fibers and vasicentric tracheids (rather than one or the other); bands and strands of thin-walled apotracheal parenchyma (in addition to paratracheal scanty parenchyma}, and raylessness (also reported for Bougainvillea of Nyctaginaceae, a family close to Phytolaccaceae). Dimorphism in vessel diameter in Agdestis (narrow vessels like libriform fibers in diameter) is attributable to the lianoid habit. Packets of crystals coarser than typical for raphides occur idioblastically in Agdestis, as do raphides in Phytolacca. ln Phytolacca and in other Phytolaccaceae, one finds an unusual feature that …
Wood And Bark Anatomy Of Schisandraceae: Implications For Phylogeny, Habit, And Vessel Evolution, Sherwin Carlquist
Wood And Bark Anatomy Of Schisandraceae: Implications For Phylogeny, Habit, And Vessel Evolution, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
Qualitative and quantitative features are reported for mature wood and bark of two species of Kadsura and five species of Schisandra. Newly reported for the family are predominance of simple perforation plates (all species); presence of pit membrane remnants in vessels of first-formed secondary xylem; two to three series of pits per facet on tracheids; diffuse axial parenchyma (Kadsura); multiseri- ate rays more than three cells wide at the widest point (all species); ethereal oil cells in axial xylem; and certain details of comparative bark anatomy. Differences in wood anatomy between Illiciaceae and Schisandraceae are nearly all …
An Expanded Circumscription Of Bouteloua (Gramineae: Choridoideae): New Combinations And Names, J. Travis Columbus
An Expanded Circumscription Of Bouteloua (Gramineae: Choridoideae): New Combinations And Names, J. Travis Columbus
Aliso: A Journal of Systematic and Floristic Botany
Cladistic analysis of nuclear ribosomal and chloroplast DNA sequences has revealed that the New World grass genus Bouteloua (Chloridoideae) is not monophyletic. Indeed, some species of Bouteloua are more closely related to species in other genera than to congeners. The problem was dealt with by expanding the circumscription of Bouteloua to include species formerly positioned in the satellite genera Buchloe (1 species), Buchlomimus/em> (1), Cathestecum/em> (4), Cyclostachya/em> (1), Griffithsochloa (1), Opizia (2), Pentarrhaphis (3), Pringleochloa (1), and Soderstromia(1). Thirteen new combinations and names were necessary. As here circumscribed, Bouteloua is monophyletic and comprises 57 species.
Glume Absence In The Orcuttieae (Gramineae: Chloridoideae) And A Hypothisis Of Intratribal Relationships, Eric H. Roalson
Glume Absence In The Orcuttieae (Gramineae: Chloridoideae) And A Hypothisis Of Intratribal Relationships, Eric H. Roalson
Aliso: A Journal of Systematic and Floristic Botany
This study addresses glume absence in tribe Orcuttieae. In Orcuttia califomica, O. inaequalis, and O. viscida, all spikelets possess two glumes except for the terminal spikelet of the inflorescence, which lacks both glumes. In O. pilosa and Tuctoria greenei the terminal spikelet lacks only the first (proximal) glume, whereas in O. tenuis, T. fragilis, and T. mucronata both glumes are developed on all spikelets. This is the first report of glume absence in species of Orcuttieae other than Neostapfia colusana, which has been long reported to lack both glumes on all spikelets. A hypothesis …