Botany Commons^™

Fine Root Biomass Distribution And Production Along A Barrier Island Chronosequence, Mark Jeffrey Stevenson

Biological Sciences Theses & Dissertations

Fine roots play an important role in community development on barrier islands. Fine roots can influence nutrient losses from the soil environment along with regulating water loss based on their distribution and concentration (Nobel et al., 1989; Gleeson and Tilman, 1990). A sequential coring method was used to determine fine root biomass and total biomass along a chronosequence of barrier island dunes and swales on the Virginia Coast Reserve - Long Term Ecological Research Site. Fine root production and the effects of nitrogen fertilization were also examined using an ingrowth core method along the chronosequence. Live fine root biomass, total …

Acer Negundo Var. Californicum (Torr. & A.Gray) Sarg., Barbara Ertter, Conatance Lincoln

Specimens by Name

No abstract provided.

Glenn Petersen's Review Of Vincent Lebot, Mark Merlin, And Lamont Lindstrom's Kava: The Pacific Drug, Glenn Petersen

Pacific Studies

No abstract provided.

Reproductive Structure And Organogenesis In A Cottonwood, Populus Deltoides (Salicaceae), Robert B. Kaul

School of Biological Sciences: Faculty Publications

The organogenesis of inflorescences, flowers, and fruits was followed for two years in a male and a female tree of eastern cottonwood, Populus deltoides. Soon after anthesis, an inflorescence for the next year is initiated as a continuation of the apical meristem in most axillary buds of the extension shoot of the current year. Bract and then floral primordia arise helically, and by the end of summer all floral appendages are evident. Individual perianth parts are evident early in ontogeny but not at anthesis; they are vascularized independently by distal traces of discrete vascular strands that also serve the …

The Prairie Naturalist Volume 27 , No. 1. March 1995

The Prairie Naturalist

DISTRIBUTION AND STATUS OF SAGE GROUSE IN COLORADO ▪ CE. Braun

BIRDS ASSOCIATED WITH BLACKBIRD SPRING FEEDING SITES IN SOUTH DAKOTA ▪ G.M. Linz, D.L. Bergman and W J. Bleier

INFLUENCE OF FORB ABUNDANCE ON WINTER BIRD USE OF CONSERVATION RESERVE PROGRAM FIELDS ▪ S.D. Hull, R.J. Robel and K.E. Kemp

FIRST NEST DOCUMENTATION FOR WHIP-POOR-WILL IN SOUTH DAKOTA ▪ K. L. Dean, D.L. Swanson, E.T. Liknes and D.P. Weinacht

WOOD DUCK POPULATION EXPANSION IN NORTHERN MONTANA ▪ DM. Prellwitz, J.R. Little, L.R. Rau and C.J. Hoff

PRAIRIE VOLES AT LOW DENSITY IN UNGRAZED TALLGRASS PRAIRIE IN THE FLINT HILLS …

A Key To The Species Of Bluebushes (Maireana Species) Of The Arid Southern Shrublands Of Western Australia, H J. Pringle, R Cranfield

Resource management technical reports

This key has been produced to make identification of Maireana species (the bluebushes) easier in the arid shrublands region of Western Australia. It attempts to use everyday terms rather than technical botanical terms wherever possible and includes an illustrated diagram for ease of identification. A flow diagram - as opposed to traditional botanical keys - allows for visual tracking of steps taken in the key and hence makes it easier to backtrack if the final identified species seems incorrect.Fruit chacters alluded to at various steps in the key are also presented, and drawings of each species fruits are also included …

A New Combination In The Cactaceae Of Baja California, Mexico, Lee W. Lenz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Checklist And Distribution Of Arkansas Pteridophytes, James H. Peck, W. Carl Taylor

Journal of the Arkansas Academy of Science

Over the past 14 years, an effort was made to summarize and improve our knowledge of the Arkansas pteridophyte flora beyond that developed by Taylor and Demaree (1979). They presented a flora of 68 species plus 2 varieties plus 4 hybrids, for a total of 74 taxa vouchered with 1335 county-level occurrence records. Changes in accepted nomenclature, field work, and herbaria searches have added as new to the flora 10 species plus 1 variety plus 7 hybrids, supported with 74 county-level occurrence records. Another 815 county-level occurrence records were added to the known flora. The Arkansas pteridophyte flora now consists …

Plants Of The Tres Marias Islands, Nayarit, Mexico, Lee W. Lenz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Trichomes Of Nama (Hydrophyllaceae) That Produce Insect-Active Compunds, Bradley F. Binder

Aliso: A Journal of Systematic and Floristic Botany

Nama hispidum, N. lobbii, N. rothrockii, and N. xylopodum have two basic types of trichomes on the adaxial and abaxial surfaces: glandular and nonglandular. Nama hispidum and N. xylopodum have (1) short semierect or intermediate-length acicular trichomes that often recurve toward the leaf surface and (2) short-stalked capitate glands. The larger acicular trichomes have micropapillae. Nama lobbii has long filiform trichomes and sessile capitate glands. Nama rothrockii has erect, smooth subulate trichomes and long-stalked capitate glands. Morphological diversity of trichomes in Nama and their possible functional significance as a predator defense are discussed.

Wood And Bark Anatomy Of Ranunculaceae (Including Hydrastis) And Glaucidiaceae, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

Wood anatomy of 14 species of Clematis and one species each of Delphinium, Helleborus, Thalictrum, and Xanthorhiza (Ranunculaceae) is compared to that of Glaucidium palma tum (Glaucidiaceae) and Hydrastis canadensis (Ranunculaceae, or Hydrastidaceae of some authors). Clematis wood has features typical of wood of vines and lianas: wide (earlywood) vessels, abundant axial parenchyma (earlywood, some species), high vessel density, low proportion of fibrous tissue in wood, wide rays composed of thin-walled cells, and abrupt origin of multiseriate rays. Superimposed on these features are expressions indicative of xeromorphy in the species of cold or dry areas: numerous narrow latewood vessels, presence …

Wood Anatomy Of Berberidaceae: Ecological And Phylogenetic Considerations, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

Qualitative and quantitative data are presented for 21 collections of Berberis and one each of Epimedium, Jeffersonia, and Nandina. Most species of Berberis have large numbers of narrow vessels ~ixed with vasicentric tracheids. Scalariform perforation plates are reported here only for Epimedium, m wh1ch they are occasional. Berberidaceae have living fibers (Berberis), fiber-tracheids plus living fibers (Nandina), or tracheids (Jeffersonia) as imperforate tracheary elements. Axial parenchyma is reported here for Jeffersonia and one species of Berberis. Previous reports of axial parenchyma in Berberis and Nandina likely refer to undivided living fibers, mostly intermixed with vessels, which are slightly shorter and …

Vascular Flora Of The San Mateo Canyon Wilderness Area, Cleveland National Forest, California, Steve Boyd, Timothy S. Ross, Orlando Mistreta, David Bramlet

Aliso: A Journal of Systematic and Floristic Botany

The Santa Ana Mountains, as a whole, have been well-studied floristically. Little work, however, has been conducted previously in the southwestern portion of the range which includes the San Mateo Canyon Wilderness Area of the Cleveland National Forest. This study reports the results of our floristic surveys conducted in the wilderness over a three-year period, from December 1991 through October 1994. The study area, encompassing the headwaters of the San Mateo Canyon watershed, is topographically and geologically diverse. Vegetation is characterized by a complex assemblage of chaparral and coastal sage scrub, oak woodland, native and nonnative grasslands, and riparian woodland …

New Fungi From Dasylirion (Agavaceae), Annette W. Ramaley

Aliso: A Journal of Systematic and Floristic Botany

Dead leaves of Dasylirion were collected in Texas in Guadalupe Mountains National Park and Big Bend National Park, and in the Valley of Fires, New Mexico. The fungi present were identified and grown in culture to identify teleomorph-anamorph connections. Four new ascomycete species are described—Graphyllium dasylirionis, Splanchnonema dasylirionis, Chaetoplea dasylirionis, and Chaetoplea sotolifoliorum. In addition, a new genus, Parahendersonia, is described to accommodate the coelomycete anamorph of Chaetoplea dasylirionis.

Native Vegetation Handbook For The Shire Of Trayning, Sarah J. Weaving

Native vegetation handbook series

This booklet provides land managers with information relating to the natural resources of the Shire of Trayning including the existing vegetation, drainage systems and soils. Some of the problems relating to the management of natural vegetation resources in the Shire of Trayning and possible solutions to these problems are also discussed. Provision of this information will contribute to the long term viability of the agricultural landscape and the conservation of native vegetation within the Shire.

Native Vegetation Handbook For The Shire Of Cunderdin, Sarah J. Weaving

Native vegetation handbook series

This booklet provides land managers with information relating to the natural resources of the Shire of Cunderdin. This includes the existing vegetation, drainage systems and soils. Some of the problems relating to the management of natural vegetation resources in the Shire and possible solutions to these problems are discussed. The provision of this information will contribute to the long term viability of the agricultural landscape and the conservation of native vegetation within the Shire.

Native Vegetation Handbook For The Shire Of Bruce Rock, Sarah J. Weaving

Native vegetation handbook series

This booklet provides land managers with information relating to the natural resources of the Shire of Bruce Rock including the existing vegetation, drainage systems and soils. Some of the problems relating to the management of natural vegetation resources in the Shire of Bruce Rock and possible solutions to these problems are also discussed. Provision of this information will contribute to the long term viability of the agricultural landscape and the conservation of native vegetation within the Shire.

The Rare, Serpentine Endemic Streptanthus Morrisonii (Brassicaceae) Species Complex, Revisited Using Isozyme Analysis, Rebecca W. Dolan

Scholarship and Professional Work - LAS

The Streptanthus morrisonii (Brassicaceae) complex is a group of six narrowly-distributed obligate serpentine endemic taxa whose habitat is threatened by geothermal development. Isozyme analysis of this little-studied complex supports the delineation of two species, S. morrisonii and S. brachiatus, but is at odds with the treatment of two subspecies based on morphology. These results may be influenced by small sample sizes but genetic studies of other Streptanthus taxa have shown patterns of relatedness that often transgress subspecies boundaries based on morphology. The present study further shows that members of the S. morrisonii complex share high genetic identity values (mean …

The Royal Catchfly (Silene Regia; Caryophyllaceae) In Indiana, Rebecca W. Dolan

Scholarship and Professional Work - LAS

Botanist Thomas Nuttall called the royal catchfly, Silene regia, "one of the most splendid species in existence." This red-flowered, hummingbird-pollinated member of the Caryophyllaceae is a perennial herb of prairies and glades. Because of the conversion of much of its former habitat to agriculture, the royal catchfly is considered threatened in Indiana. The species' historical and present-day distribution in the State, documenting the current status of all known locations, including population sizes and co-occurring species, are reported in this paper. Only 8 of the documented 23 historical locations still support the plant. No populations occur in dedicated nature preserves or …

The Vascular Flora, Rare Species And Plant Migrations Of New River Gorge National River, West Virginia, Dale William Suiter

Theses, Dissertations and Capstones

In 1978, the United States Congress designated 83.5 km/53 mi. of the New River in southern West Virginia as New River Gorge National River. The vascular flora of selected sites in NRGNR was surveyed from September 1992 through October 1994. A total of 904 taxa of vascular plants was recorded, 79.2% of which are native to West Virginia. Currently, 1337 vascular plant taxa have been documented from the New River Gorge as a result of this work as well as the work of Grafton and McGraw and Phillips. A comparison of species with the West Virginia Natural Heritage Program's rare …

Additions To The Vascular Flora Of The Santa Ana Mountains, California, Steve Boyd, Timothy S. Ross, Fred M. Roberts Jr.

Aliso: A Journal of Systematic and Floristic Botany

The Santa Ana Mountains, part of the Peninsular Ranges of southern California, have been welldocumented floristically. Nevertheless, since publication of a preliminary vascular flora for the range in 1978, a significant number of additions have been reported. These are principally from studies of two subregions in the southern portion of the range and include 42 taxa from the Santa Rosa Plateau and 88 taxa from the San Mateo Canyon Wilderness Area. Documentation is provided here for an additional 66 taxa not included in other published floristic accounts of the Santa Ana Mountains. A voucher specimen and generalized distribution information are …

Wood Anatomy Of Caryophyllaceae: Ecological, Habital, Systematic, And Phylogenetic Implications, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

Wood of Caryophyllaceae is more diverse than has been appreciated. Imperforate tracheary elements may be tracheids, fiber-tracheids, or libriform fibers. Rays may be uniseriate only, multiseriate only, or absent. Roots of some species (and sterns of a few of those same genera) have vascular tissue produced by successive cambia. The diversity in wood anatomy character states shows a range from primitive to specialized so great that origin close to one of the more specialized families of Chenopodiales, such as Chenopodiaceae or Amaranthaceae, is unlikely. Caryophyllaceae probably branched from the ordinal clade near the clade's base, as cladistic evidence suggests. Raylessness …

A New Species Of Hechita (Bromeliaceae, Pitcairnoideae) From The Cape Region, Baja California Sur, Mexico, Lee W. Lenz

Aliso: A Journal of Systematic and Floristic Botany

Hechtia gayii is described and illustrated and its relationship to other members of the genus is discussed.

Effect Of Light Intensity And Temperature On Light-Avoiding Leaf Movements In Two Phaseolus Species, Douglas Bielenberg

Presidential Scholars Theses (1990 – 2006)

It was the purpose of this experiment to determine the relationship between the factors of pulvinus temperature and light intensity in their role as factors that affect paraheliotropism. We also examined the differences in these relationships in two species adapted to different environments. The two species used were: Phaseolus vulgaris (common bean), a high yielding species which is grown in mesic climates, and P. acutifolius (tepary bean), an arid land bean which tolerates high temperatures and drought.

Lichen Use By Larval Leucochrysa Pavida (Neuroptera:Chrysopidae), Penni Jo Wilson

Masters Theses

Leucochrysa pavida is a species of green lacewing (Neuroptera:Chrysopidae) that uses lichen fragments to build a larval debris "packet." The "packet" is eventually used to form a cocoon used during pupation. Only minute lichen fragments are harvested for formation of the packets which makes identification of the actual lichens utilized difficult using morphological characteristics. For this reason, thin-layer chromatography was employed. The thin-layer chromatographic process identifies acetone-soluble lichen chemicals that are formed in lichen thalli. By comparing the chemistry of lichen communities at Tower Rock Recreation Area in Hardin County, Illinois, with the chemicals identified during thin-layer chromatography of larval …

An Automated Plot Harvest System For Use With A Commercial Forage Harvester, Jeffrey F. Pedersen, Kenneth J. Moore

Department of Agronomy and Horticulture: Faculty Publications

This automated harvest system is based on minimal modification of currently available commercial forage harvesters. Using 6.8 m plots separated by 0.75 m alleys, a single operator can harvest, finely chop, and collect wet plot weights of forage sorghum [Sorghum bicolor (L.) Moench] or pearl millet [Pennisetum glaucum (L.) R. Hr.] in <1 min per plot. Harvested material is deposited in a pile in the center of each plot. Subsamples for moisture and quality analysis can easily and safely be obtained from the pile.

Final Report: Oglala National Grasslands Badlands Vegetational Survey, Joyce Hardy

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

These surveys were taken to document the vegetational species in the Ogalala National Grasslands A total of 637 plant collections were made. Collections were made under Hardy’s number when possible. Identifications were completed by Hardy, with assistance by Ron Weedon, Steve Rolfsmeier, and Stan Welsch. Identifications were made using the Flora of the Great Plains, and synonym follows the same source. These collections represent 233 taxonomic entities, including 41 families, 227 separate species, one known hybrid, and six subspecific pairs. Four of these collections are new to the state of Nebraska and 44 are newly collected for the county of …

Brown· Midrib Sorghum Silage For Midlactation Dairy Cows, R. J. Grant, S. G. Haddad, K. J. Moore, Jeffrey F. Pedersen

Department of Agronomy and Horticulture: Faculty Publications

Brown midrib sorghum silage was compared with alfalfa, corn, and normal sorghum silages for its effect on performance, ruminal metabolism, and digestive kinetics of Holstein dairy cows in midlactation. Twelve cows averaging 90 ± 5 DIM were assigned to one of four diets in replicated 4 X 4 Latin squares with 4-wk periods. Additionally, 3 ruminally fistulated cows (95 ± 20 DIM) were assigned to the same diets in a 3x 4 Youden square for measurement of ruminal characteristics. Diets were fed as isonitrogenous TMR that contained 65% silage (OM basis). The DMl was greater for the corn and brown …

Corylophomyces, A New Dioecious Genus Of Laboulbeniales On Corylophidae (Coleoptera), Richard K. Benjamin

Aliso: A Journal of Systematic and Floristic Botany

A new dioecious genus of Laboulbeniaceae (Laboulbeniales), Corylophomyces, was established to accommodate five species parasitizing Corylophidae (Coleoptera; Cucujoidea): C. peyerimhoffii (≡Cryptandromyces peyerimhoffit); C. sericoderi (≡Autophagomyces sericoderi); C. sarawakensis (≡A. sarawakensis); and two new species, C. reflexus and C. weirii. A key to the taxa was given and all were illustrated with line drawings. Corylophomyces was placed in Amorphomycetinae sensu Tavares. The other genera included in this subtribe by Tavares in 1985, i.e., Amorphomyces, Dioicomyces, Nanomyces, Rhizopodomyces, and Tetrandromyces, were compared with one another and with the new genus.

Four New Species Of Uncinia (Cyperaceae) From Northern South America, Gerald A. Wheeler, Paul Goetchebeur

Aliso: A Journal of Systematic and Floristic Botany

Four new species of Uncinia (Cyperaceae) are described from northern South America. Three of them, U. lacustris, U. paludosa, and U. tenuifolia, belong in sect. Platyandrae; the fourth, U. subsacculata, belongs in sect. Uncinia. Three of the new species are known only from Ecuador, whereas U. paludosa has also been collected in Colombia.