Botany Commons^™

Vitis Riparia Michx., Martin G. Bennett

Specimens by Name

No abstract provided.

Lysimachia Ciliata L., P. Harwood

Specimens by Name

No abstract provided.

Lysimachia Ciliata L., Paul B. Marcum

Specimens by Name

No abstract provided.

Lysimachia Ciliata L., P. Harwood

Specimens by Name

No abstract provided.

Section Abstracts: Botany

Virginia Journal of Science

Abstracts of the Botany Section for the 87th Annual Virginia Academy of Science Meeting, May 27-29, 2009, Virginia Commonwealth University, Richmond, VA.

Sfa Gardens Newsletter, Summer 2009, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

B. R. Wells Rice Research Studies 2008, R. J. Norman, J. F. Meullenet, K. A. K. Moldenhauer

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Mojave Applied Ecology Notes Summer 2009, Kevin E. Oliver, Dianne N. Bangle, E. Cayenne Engel, Lindsay P. Chiquoine, Scott R. Abella

Mojave Applied Ecology Notes

BLM and wildfire protection in the Mojave, studies of the sticky ringstem flowering phenology in Lake Mead NRA, restoration work within gypsum soils, post-fire response synthesis for Mojave and Sonoran deserts

Vitis Vulpina L., Gordon C. Tucker

Specimens by Name

No abstract provided.

Vitis Vulpina L., Gordon C. Tucker

Specimens by Name

No abstract provided.

Vitis Aestivalis F.Michx., Gordon C. Tucker

Specimens by Name

No abstract provided.

Lysimachia Thyrsiflora L., Steven D. Glenn

Specimens by Name

No abstract provided.

Acer Rubrum Wats., Kerry Barringer

Specimens by Name

No abstract provided.

Morus Alba L., John E. Ebinger

Specimens by Name

No abstract provided.

Cover Page

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Descriptive Anatomy And Evolutionary Patterns Of Anatomical Diversification In Adenia (Passifloraceae), David J. Hearn

Aliso: A Journal of Systematic and Floristic Botany

To understand evolutionary patterns and processes that account for anatomical diversity in relation to ecology and life form diversity, anatomy of storage roots and stems of the genus Adenia (Passifloraceae) were analyzed using an explicit phylogenetic context. Over 65,000 measurements are reported for 47 quantitative and qualitative traits from 58 species in the genus. Vestiges of lianous ancestry were apparent throughout the group, as treelets and lianous taxa alike share relatively short, often wide, vessel elements with simple, transverse perforation plates, and alternate lateral wall pitting; fibriform vessel elements, tracheids associated with vessels, and libriform fibers as additional tracheary elements; …

List Of Reviewers

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Non-Random Vessel Distribution In Woods: Patterns, Modes, Diversity, Correlations, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

Vessel grouping is a form of non-random distribution that becomes functionally valuable when the background consists of non-conductive imperforate tracheary elements (fiber-tracheids and libriform fibers); ungrouped vessels, randomly placed, often occur in an all-tracheid background. Types of vessel grouping are described and illustrated: diagonal, tangential, radial, median radial bands, and growth rings. Other non-random distributions considered include degrees and kinds of cable construction, patchy vessel distributions, vessel displacement related to succulence, and patterns involving successive cambia. Non-random vessel distributions inevitably involve non-random placement of imperforate tracheary elements, so that a parallel set of mechanical adaptations is often simultaneously achieved. Correlations …

Index

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Epiparasitism In Phoradendron Durangense And P. Falcatum (Viscaceae), Clyde L. Calvin, Carol A. Wilson

Aliso: A Journal of Systematic and Floristic Botany

Phoradendron, the largest mistletoe genus in the New World, extends from temperate North America to temperate South America. Most species are parasitic on terrestrial hosts, but a few occur only, or primarily, on other species of Phoradendron. We examined relationships among two obligate epiparasites, P. durangense and P. falcatum, and their parasitic hosts. Fruit and seed of both epiparasites were small compared to those of their parasitic hosts. Seed of epiparasites was established on parasitic-host stems, leaves, and inflorescences. Shoots developed from the plumular region or from buds on the holdfast or subjacent tissue. The developing endophytic …

An Examination Of The Correlation Between Shoot Apical Meristem Size And Leaf Heterophylly In Pisum Sativum, Cynthia Mary Halfman

Undergraduate Honors Thesis Collection

This study is a quantitative examination of the ramifications of leaf development as influenced by the size of the shoot apical meristem. I wish not to delve into a genetic examination of the shoot apical meristem but rather into the possible correlation between the apical meristem size and leaf heterophylly. If changes in shoot apical meristem size influence heterophylly in leaves, then as shoot apical meristem changes, leaf characteristics will change. This change may result from two different relationships.

Seedlings’ Substrate Preferences In A Minnesota Old Growth Thuja-Betula Forest, Stephen C. Rossiter

Environmental Studies Honors Papers

Northeastern Minnesota’s logging history has altered the forests enough to cause concern about the reproduction of Thuja occidentalis and Betula alleghaniensis. I studied a rare old growth example of an already rare mesic Thuja-Betula forest and asked how well those species were regenerating in that mostly unaltered ecosystem. In managed forests, a lack of suitable substrate is thought to be limiting their seedling establishment so I asked which substrates the seedlings preferred in the old forest. To answer both questions, I measured the seedling densities of all canopy tree species across height classes and substrate types within twenty 100m2 plots. …

Todd Barkman, Julia Valentine

International Faculty Researchers

Dr. Todd Barkman grew up in Pinckney, Mich. and admits growing up in a rural area is what first inspired his interest in plants. While studying at Michigan State University, he had the opportunity to grow orchids for the botany department. "I fell in love with orchids," Barkman said. "I decided I wanted to work with and study orchids for the rest of my life."

Todd Barkman's website

Arkansas Turfgrass Report 2008, Michael Richardson, Douglas Karcher, Aaron Patton

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Viola Sororia Willd., Bob Edgin

Specimens by Name

No abstract provided.

Acer Platanoides L., Matthew Pace

Specimens by Name

No abstract provided.

Viola Sororia Willd., Martin Bennett

Specimens by Name

No abstract provided.

Impacts Of Plant Size, Density, Herbivory, And Disease On Native Platte Thistle (Cirsium Canescens), Deidra Jacobsen

Department of Environmental Studies: Undergraduate Student Theses

Abstract. Based on prior field observations, we hypothesized that individual and interacting effects of plant size, density, insect herbivory, and especially fungal disease, influenced seedling and juvenile plant growth in native Platte thistle populations (Cirsium canescens Nutt.). We worked at Arapaho Prairie in the Nebraska Sandhills (May - August 2007), monitoring plant growth, insect damage, and fungal infection within different density thistle patches. In the main experiment, we sprayed half of test plants in different density patches with fungicide (Fungonil© Bonide, containing chlorothalonil) and half with a water control. Fungal infection rates were very low, so we found no difference …

Graminicolous Fungi Of Virginia: Fungi In Collections 2004-2007, Curtis W. Roane

Virginia Journal of Science

Fungus-grass associations recognized in Virginia from 2004 to 2007 are recorded. Many associations are new to the United States (U), eastern United States (EU) and Virginia (V); other associations extend the known distribution of those previously discovered. These reports contribute further to knowledge of the mycoflora of Virginia.

Hunker Down And Hold On: Contractile Roots Give Skunk Cabbage Another Special Trait, W. John Hayden

Biology Faculty Publications

I can remember the first time I ever heard of contractile roots. It was in graduate school at the University of Maryland and a friend of mine was busy preparing a lecture on roots. He said to me something like “Did you ever notice, while pulling up dandelions, that the darn weed seems to be pulling back? As it turns out, it is!” Strange but true, dandelions, along with a diverse assemblage of other species, have contractile roots that serve to pull the plant downward. In this capacity, contractile roots go well beyond the routine function of providing anchorage for …