Botany Commons^™

Karyotypes And Idiograms Of Some Western North American Species Of Lotus (Fabaceae), William F. Grant

Aliso: A Journal of Systematic and Floristic Botany

Karyotypes and idiograms are presented for 12 species (L. argophyllus var. argophyllus, L. crassifolius, L. dendroideus var. dendroideus, L. grandifiorus, L. humistratus, L. oblongifolius var. oblongifolius, L. stipularis, L. scoparius var. scoparius, L. salsuginosus var. salsuginosus, L. rigidus, L. wrangelianus, L. wrightii) and 3 varieties (L. argophyllus var. argenteus, L. nevadensis var. douglasii, L. scoparius var. brevialatus) of Lotus L. (Fabaceae) belonging to four different groups of the genus (Hosackia, Syrmatium, Microlotus, and Simpteria). The chromosome number for L. dendroideus var. dendroideus (2n = 14) is reported …

Prediction Of Potential Antimigraine Activity Using Artificial Neural Networks, Qing Luo, Jerry A. Darsey, Cesar M. Compadre, Sanjay K. Mitra

Journal of the Arkansas Academy of Science

More than 10 million Americans, three quarters of them women, suffer some degree of recurrent migraine headaches. Feverfew [Tanacetum parthenium (L.) Schultz-Bip.) is a member of the Asteraceae family that is native to Europe. This plant is a perennial flowering aromatic plant common in gardens. It has been widely used as a self-medication of arthritis, fever, and migraine headaches for over 2000 years. Sesquiterpene lactones (SL) are the components responsible for the antimigraine activity of feverfew. In this research, the relationship between SL structural information and their biological activity was studied by using Gaussian 92 program in conjunction with artificial …

Ground Flora Composition Following Harvesting Of A Bottomland Hardwood Forest In The Mississippi River Batture Lands, James E. Kellum, Eric Sundell, Brian Roy Lockhart

Journal of the Arkansas Academy of Science

No abstract provided.

Rediscovery Of Parnassia Asarifolia Vent (Parnassiaceae) In Arkansas, David L. Mcdaniel, Daniel L. Marsh, Winfred D. Crank

Journal of the Arkansas Academy of Science

No abstract provided.

Biological Species Concepts In Eastern North American Populations Of Lentinellus Ursinus, Andrew N. Miller

Masters Theses

As part of a biosystematic study of the Lentinellus ursinus species complex, field and herbarium specimens from North America, Central America, and Europe were examined. Single basidiospore isolates from basidiomata collected in Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Tennessee, North Carolina, Wisconsin, Costa Rica, and Austria were crossed in all possible combinations to determine the mating system operating in each population. All populations exhibited bifactorial or tetrapolar mating systems. Tester strains were then crossed to identify intercompatible populations and to determine if morphological species in the L. ursinus species complex are congruent with biological species. Three biological species were recognized …

Molecular And Functional Characterization Of A Novel Low-Affinity Cation Transporter (Lct1) In Higher Plants, Daniel P. Schachtman, Raman Kumar, Julian I. Schroeder, Ellen L. Marsh

Department of Agronomy and Horticulture: Faculty Publications

The transport of cations across membranes in higher plants plays an essential role in many physiological processes including mineral nutrition, cell expansion, and the transduction of environmental signals. In higher plants the coordinated expression of transport mechanisms is essential for specialized cellular processes and for adaptation to variable environmental conditions. To understand the molecular basis of cation transport in plant roots, a Triticum aestivum cDNA library was used to complement a yeast mutant deficient in potassium (K⁺) uptake. Two genes were cloned that complemented the mutant: HKT1 and a novel cDNA described in this report encoding a cation …

Floristic Survey And Annotated Checklist Of The Pine Bluff Arsenal, Stephen A. Walker, Julian Campbell

Journal of the Arkansas Academy of Science

We conducted a floristic survey of the Pine Bluff Arsenal during the spring, summer, and fall of 1996. In total, 622 taxa representing 113 families and 351 genera were identified and compiled into an annotated checklist. The largest families were Asteraceae (79 genera), Poaceae (73 genera). Fabaceae (41 genera), and Cyperaceae (38 genera). Exotic species composed only 8.5% of the flora. Fifty-five of the specimens represent new records for Jefferson County.

New Records For The Distribution Of An Unusual Liverwort, Petalophyllum Ralfsii (Fossombroniaceae), Daniel L. Marsh, Timothy A. Golden, David L. Mcdaniel, Gregory A. Nunley, Winfred D. Crank

Journal of the Arkansas Academy of Science

No abstract provided.

Wood Anatomy Of Buddlejaceae, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

Quantitative and qualitative data are presented for 23 species of Buddleja and one species each of Emorya, Nuxia, and Peltanthera. Although crystal distribution is likely a systematic feature of some species of Buddleja, other wood features relate closely to ecology. Features correlated with xeromorphy in Buddleja include strongly marked growth rings (terminating with vascular tracheids), narrower mean vessel diameter, shorter vessel elements, greater vessel density, and helical thickenings in vessels. Old World species of Buddleja cannot be differentiated from New World species on the basis of wood features. Emorya wood is like that of xeromorphic species …

The Linnaean Hierarchy And The Evolutionization Of Taxonomy, With Emphasis On The Problem Of Nomenclature, Kevin De Queiroz

Aliso: A Journal of Systematic and Floristic Botany

During the post-Darwinian history of taxonomy, the Linnaean hierarchy has maintained its role as a means for representing hierarchical taxonomic relationships. During the same period, the principle of descent has taken on an increasingly important role as the basis for reformulated versions of fundamental taxonomic concepts and principles. Early in this history, the principle of descent provided an explanation for the existence of taxa and implied a nested, hierarchical structure for taxonomic relationships. Although an evolutionary explanation for taxa contradicted the Aristotelian context within which the Linnaean hierarchy was developed, the nested, hierarchical structure of taxonomic rela· tionships implied by …

Soil Temperature And Fumigation Effects On Plant Phosphorus Uptake And Related Microbial Properties, Dennis L. Mccallister, L. A. Jawson, M. D. Jawson

Department of Agronomy and Horticulture: Faculty Publications

Early season problems with growth of corn (Zea mays L.) under cool, wet conditions prompted a study of the effects of soil and environmental conditions on mineralization and plant uptake of phosphorus (P). Our objective was to determine the effect of soil test P, temperature, and soil fumigation on soil P availability and uptake during early corn growth. Corn was grown in growth chambers at temperatures of 14°C or 25°C. Soils were a high-P Hastings silty clay loam (fine, montmorillonitic, mesic Udic Argiustoll) and a low-P Sharpsburg clay loam (fine, montmorillonitic, mesic Typic Argiudoll). Plants grew for up to …

Evolutionary Implications Of Meiotic Chromosome Behavior, Reproductive Biology, And Hybridization In 6x And 9x Cytotypes Of Andropogon Gerardii (Poaceae), Guillermo A. Norrmann, Camilo L. Quarín, Kathleen H. Keeler

School of Biological Sciences: Faculty Publications

Andropogon gerardii, big bluestem, has 60 and 90 chromosome cytotypes. Meiosis in the hexaploid was shown to be regular, although some secondary associations of bivalents form. Meiosis in the enneaploid (2n = 9x = 90) is irregular, leading to most gametes having unbalanced chromosome complements. Both cytotypes show considerable self-incompatibility. Cytotypes crossed freely, forming a variety of fertile euploids and aneuploids. Indistinguishable exomorphology, intermixing in natural populations, and compatibility suggest that A. gerardii is best understood as a cytotypically complex single species.

Notes: Forage Yield, Quality, And Fertility Of Sorghum X Sudan Grass Hybrids In A1 And A3 Cytoplasm, Jeffrey F. Pedersen, J. J. Toy

Department of Agronomy and Horticulture: Faculty Publications

Currently, no information is available comparing the agronomic performance of A1 and A3 cytoplasms in sorghum x sudangrass [Sorghumbi color (L.) Moench] hybrids. The objectives of this study were to compare the effects of A1 and A3 cytoplasm on the maturity, fertility, height, forage yield, and forage quality of sorghum × sudangrass hybrids. In 1989, pollen from a bulk of eight sudangrass populations was used to pollinate four sorghum lines that had been male-sterilized in both A1 and A3 cytoplasm. Hybrids were grown at the Univ. of Nebraska Field Laboratory Ithaca, NE, in 1990 and 1991, in a split-plot …

Environmental Requirements For Sporocarp Germination In Marsileaceae, Kevin J. Kruep

Masters Theses

Experiments were conducted on sporocarps of Marsilea quadrifolia L. to determine whether temperature had any influence on the length of the reproductive period and initial sperm emergence from microgametophytes. Data were then compared to results of similar studies undertaken with the species M. vestita Hooker and Greville to determine whether there was any variation between them. A slight variation was recorded, ranging from 1 to 1.5 hours for initial emergence.

An additional set of experiments was performed with 58 year old sporocarps and approximately two-year-old sporocarps of M. quadrifolia. A difference of 2-6.5 hours for initial sperm emergence occurred between …

Twenty-Five Year Index To The Prairie Naturalist, Volumes 1-25, 1968-1993, Paul B. Kannowski

The Prairie Naturalist

Forward

Author Index

1.Articles and Notes

2. Book Reviews

3. Editorials

Subject Index

Geographic Index

Taxonomic Index

Plants

Animals

Other Records

A Study Of The Lichens At Rocky Branch Nature Preserve, Clark County, Illinois, Eric B. Grunder

Masters Theses

In 1971, a graduate student at Eastern Illinois University, James E. Wiedman, studied the lichen flora of Rocky Branch Nature Preserve, Clark County, Illinois. During his study he collected, identified, and recorded a total of 64 lichen species. Since 1971, Rocky Branch Nature Preserve has experienced a dramatic increase in use by people and a concomittant decline in the quality of lichen habitats. In order to assess the decline of suitable lichen habitats and the reduction of lichen species a second study of the lichens at Rocky Branch Nature Preserve was undertaken. As part of this study, ten habitat sites …

A Floristic Study Of The Republican River Valley In Nebraska With Emphasis On Endangered, Threatened, And Rare Plants, Steven J. Rothenberger

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The objectives of this study were: (1) to survey the Republican River Valley and selected tributaries in Nebraska for rare plant species (as listed by the Nebraska Natural Heritage program) and determine the present status of these species; (2) to identify and describe potential natural areas that, because of their location and/or species composition, are thought to have ecological value; (3) to complie a plant species check list for the study area in order to better understand species distributions and associations that impact rare species; and (4) to speculate as to the effect of instream river flows on the distribution …

The Prairie Naturalist Volume 28, No. 4. December 1996

The Prairie Naturalist

IMPLANTED MICROCHIPS USED TO INDIVIDUALLY IDENTIFY BLACK-FOOTED FERRETS IN MONTANA ▪ R. Stoneberg

GRAY WOLF STATUS IN NORTH DAKOTA ▪ D. S Licht and L. E. Huffman

VARIATION IN SELECTION OF MICROHABITATS BY MERRIAM'S TURKEY BROOD HENS ▪ M. A. Rumble and S. H. Anderson

SURVIVAL AND REPRODUCTIVE CHRONOLOGY OF FEMALE RING-NECKED PHEASANTS IN SOUTH DAKOTA ▪ A. P. Leif

EFFECTS OF LOGGING SLASH ON ASPEN REGENERATION IN GRAZED CLEARCUTS ▪ M. A. Rumble, T. Pella, J. C. Sharps. A. V. Carter, and J. B. Parrish

BOOK REVIEWS

The Poetry of Ecoregions ▪ J. Pastor

Saving Texas' Rare Ones ▪ …

Helminths Of The Southwestern Toad, Bufo Microscaphus, Woodhouse's Toad, Bufo Woodhousii (Bufonidae), And Their Hybrids From Central Arizona, Stephen R. Goldberg, Charles R. Bursey, Keith B. Malmos, Brian K. Sullivan, Hay Cheam

Great Basin Naturalist

The gastrointestinal tracts, lungs, and urinary bladders from 77 Bufo microscaphus, 61 Bufo woodhousii, and 8 of their hybrids were examined for helminths. One species of trematode (Glypthelmins quieta), 1 species of cestode (Distoichometra bufonis), and 5 species of nematodes (Aplectana incerta, A. itzocanensis, Rhabdias americanus, Physaloptera sp., and Physocephalus sp.) were found. The greatest prevalence (41%) and mean intensity (231.7) were recorded for Aplectana incerta in Bufo woodhousii. It appears hybrids harbor fewer parasites than either parent species.

The Vascular Flora Of The Lula Lake Land Trust, R. David Sapp

Honors Theses

The present study at the Lula Lake Land Trust centered on making a detailed and comprehensive list of the vascular flora contained within its boundaries. The collection of specimens began in May 1995 and extended through July 1996, for a total of fourteen months. The field work resulted in 412 specimens, comprising 79 families, 178 genera, and 252 species. The Lula Lake Land Trust is a non-profit, privately owned entity dedicated to the conservation and preservation of the Lula Lake area. It is in an alliance with The Nature Conservancy of Georgia, the Tennessee Aquarium, and the University of Tennessee …

Spiranthes Cernua (L.) Rich., Robert Edgin

Specimens by Name

No abstract provided.

Verbena Simplex Lehm., William Mcclain

Specimens by Name

No abstract provided.

Spiranthes Cernua (L.) Rich., James Knop

Specimens by Name

No abstract provided.

Spiranthes Cernua (L.) Rich., William Davison

Specimens by Name

No abstract provided.

The Prairie Naturalist Volume 28, No. 3. September 1996

The Prairie Naturalist

REPRODUCTIVE SUCCESS OF GRASSHOPPER SPARROWS IN RELATION TO EDGE ▪ J. M Delisle, and J. A. Savidge

OBSERVATIONS ON BATS AT BADLANDS NATIONAL PARK, SOUTH DAKOTA ▪ M A. Bogan, J. G. Osborne, and J. A. Clarke

DIETS OF FEMALE WHITE-TAILED DEER IN THE CROSS-TIMBERS REGION ▪ F. C. Bryant, G. Van Vreede, T. J. Deliberto, and K. L. Gee

NOTES

Second Record of White Ibis in North Dakota ▪ J. W. Marlow, L. D. Igl, and M. R. Hartman

A Recent Record of Mountain Lion in Nebraska ▪ H. H. Genoways and P. W. Freeman

Prairie Falcon Predation on …

Taking Root, W. John Hayden

Biology Faculty Publications

The brief description of mangrove reproduction in John N. Cole's "Off Key, Out of Reach" [A Sense of Place, July-August] contains an error.

Verbena Hastata L., Bob Edgin

Specimens by Name

No abstract provided.

Parthenocissus Tricuspidata (Siebold & Zucc.) Planch., Gordon C. Tucker

Specimens by Name

No abstract provided.

Arkansas Rice Research Studies 1995, R. J. Norman, B. R. Wells

Arkansas Agricultural Experiment Station Research Series

The research reports in this publication represent one year of results; therefore, these results should not be used as a basis for long-term recommendations. Several research reports in this publication dealing with soil fertility also appear in Arkansas Soil Fertility Studies 1995 , Arkansas Agricultural Experiment Station Research Series 450. This duplication is the result of the overlap in research coverage between the two series and our effort to inform Arkansas rice producers of all the research being conducted with funds from the rice check-off. Use of products and trade names in any of the research reports of this publication …

Acer Glabrum Var. Torreyi (Greene) Smiley, Barbara Ertter

Specimens by Name

No abstract provided.