Botany Commons^™

Sfa Gardens Newsletter, Spring 2013, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

Redbuds And Legumes Subfamilies, W. John Hayden

Biology Faculty Publications

Although legumes constitute one of the largest families of flowering plants in the world, and despite 25 years of celebrating Virginia’s wildflowers, redbud (Cercis canadensis) is the first legume to be recognized as a VNPS Wildflower of the Year. This article addresses the relationships of Cercis with the rest of the legumes (family Fabaceae, or Leguminosae in older literature).

Persons As Plants: Ecopsychology And The Return To The Dream Of Nature, Monica Gagliano

Landscapes: the Journal of the International Centre for Landscape and Language

Abstract. In this article, I examine human-plant perceptions and interactions in terms of developing a new perspective on the perception and the actions of people towards plants. By combining my scientific understanding of the biological world and my own experiences working with plant shamans, storytellers and mystics from around the world, I engage with the idea that the hierarchical structure by which Western science defines the variety of life forms as ‘primitive’ or ‘more evolved’ is at the root of the current environmental crisis and I argue that the solution to it rests in a change of this very perspective.

Survey Of Suitable Plants For Cal Poly's Green Wall, Katrina Burritt

Horticulture and Crop Science

Green wall technology is a growing industry in the United States and has been very successful for a several years throughout Europe. The objective of this survey was to study the success of several different species of plants on a vertical wall facing south at Cal Poly’s Horticultural Department Unit. At first the focus was aimed at using California native species, because it was thought that natives would be better acclimated to the exposure in this specific location. It became apparent that plants should not be selected for the wall based just on the fact that they are California natives. …

Traversing Swanton Road, 12th Ed., James A. West

Academic, Government & Associated Organizational Research Resources

Situated at the northwest end of Santa Cruz County and occupying circa 30 square miles of sharply contrasted terrain, the Scott Creek Watershed concentrates within its geomorphological boundaries, at least 10-12% of California's flora, both native and introduced. Paradoxically, the use/abuse that the watershed has sustained over the past 140+ years, has not necessarily diminished the biodiversity and perhaps parallels the naturally disruptive but biologically energizing processes (fire, flooding, landslides and erosion), which have also been historically documented for the area for +60 years. This is an early edition of an extensive document by James A. West. Please visit the …

Control Of Flower Size, Beth A. Krizek, Jill T. Anderson

Faculty Publications

Flowers exhibit amazing morphological diversity in many traits, including their size. In addition to interspecific flower size differences, many species maintain significant variation in flower size within and among populations. Flower size variation can contribute to reproductive isolation of species and thus has clear evolutionary consequences. In this review we integrate information on flower size variation from both evolutionary and developmental biology perspectives. We examine the role of flower size in the context of mating system evolution. In addition, we describe what is currently known about the genetic basis of flower size based on quantitative trait locus (QTL) mapping in …

Arkansas Cotton Variety Test 2012, Fred M. Bourland, A. B. Beach, D. P. Roberts Jr., C. Kennedy

Arkansas Agricultural Experiment Station Research Series

The primary goal of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties and advanced breeding lines in the major cotton-growing areas of Arkansas. This information helps seed companies establish marketing strategies and assists producers in choosing varieties to plant.

Wayne E. Sabbe Arkansas Soil Fertility Studies 2012, Nathan A. Slaton

Arkansas Agricultural Experiment Station Research Series

Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with theuniversity's research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas.

2013 Keya Paha Biological Unique Landscape Ecological Evaluation, Robert F. Steinauer

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

The Nebraska Natural Legacy Project (Schneider et al, 2005), a statewide comprehensive wildlife conservation strategy developed by the Nebraska Game and Parks Commission (NGPC), identified the Keya Paha River drainage as a “Biologically Unique Landscape” (BUL). To facilitate conservation efforts, ecological evaluations of mesic prairie, wetlands, and bur oak woodland plant communities and surveys for Tier 1 and Tier 2 at-risk-plant species were conducted within the Keya Paha BUL.

Nebraska Natural Heritage Program (NNHP) Ecological Community Survey Forms were completed to document native plant communities and NNHP Rare Plant Survey Forms were completed to document rare plant occurrences (S1-S2 species) …

Traversing Swanton Road, 11th Ed., James A. West

Academic, Government & Associated Organizational Research Resources

Situated at the northwest end of Santa Cruz County and occupying circa 30 square miles of sharply contrasted terrain, the Scott Creek Watershed concentrates within its geomorphological boundaries, at least 10-12% of California's flora, both native and introduced. Paradoxically, the use/abuse that the watershed has sustained over the past 140+ years, has not necessarily diminished the biodiversity and perhaps parallels the naturally disruptive but biologically energizing processes (fire, flooding, landslides and erosion), which have also been historically documented for the area for +60 years. This is an early edition of an extensive document by James A. West. Please visit the …

Factors Influencing The Current And Historical Invasion Trends In The Connecticut College Arboretum, Lillian Fayerweather

Botany Honors Papers

Invasive species present a growing risk to native ecosystems. It would be impossible to eliminate them, but by learning where they are more likely to occur it may be possible to concentrate resources on removal and management in the most at risk areas. A number of site characteristics may influence invasive species presence and invasion trends. In order to determine what factors affect species presence and historical invasion trends, I utilized data from decennial surveys conducted in the Bolleswood Natural Area of the Connecticut College Arboretum in New London, Connecticut. In 1952, 4 transects were established across the area, composed …

Phase Ii Of Tidal Marsh Restoration At Steedman Woods Reserve At York, Maine, David M. Burdick, Chris Peter, Gregg Moore

Jackson Estuarine Laboratory

No abstract provided.

Phylogenetic Analyses Of Tolpis Adans. (Asteraceae) Reveal Patterns Of Adaptive Radiation, Multiple Colonization And Interspecific Hybridization, Michael Gruenstaeudl, Arnoldo Santos-Guerra, Robert K. Jansen

Biological Sciences Faculty Publications

The plant genus Tolpis (Asteraceae) has been the subject of several investigations on the evolution of oceanic island plants. Its insular species were utilized in studies of artificial hybrid fertility, testing the validity of Baker’s law, the application of DNA barcodes, and the phylogenetic utility of inter-simple sequence repeat markers. Despite this considerable interest in Tolpis, little is known about its phylogenetic history. Past investigations were unable to resolve most of the interspecific relationships, especially within the Canary Islands, where the genus is particularly diverse. Incomplete taxon sampling, the use of ambiguous outgroups and the limited utility of slowly evolving …

Private Wild Plant Sanctuary Designation Application, Gordon Natural Area, Gerard Hertel

Gordon Natural Area Baseline Plant Survey Documents

This application for Wild Plant Sanctuary status for the Robert B. Gordon Natural Area was submitted to the PA Department of Conservation and Natural Resources in 2013 by Gerard Hertel and Harry Tiebout. It includes a plant survey and vegetational history of the preserve.

Sequoiadendron Giganteum (Cupressaceae) At Lake Fulmor, Riverside County, California, Rudolf Schmid, Mena Schmid

Aliso: A Journal of Systematic and Floristic Botany

A GPS census made on 19 June 2012 of the Lake Fulmor area, northwestern San Jacinto Mountains, Riverside County, California, revealed seven trees of the Sierra Nevada endemic Sequoiadendron giganteum (Cupressaceae). The trees occur in a 234-meter-long narrow strip along the northwestern side of the lake. The population appears to be naturalizing. The largest tree (45 cm DBH, about 20 m tall), planted in 1980, is reproductively mature. Its six offspring to the northeast and southwest are 3–5 m tall and do not presently bear cones.

Kalinia, A New North American Genus For A Species Long Misplaced In Eragrostis (Poaceae, Chloridoideae), Hester L. Bell, J. Travis Columbus, Amanda L. Ingram

Aliso: A Journal of Systematic and Floristic Botany

Eragrostis obtusiflora (Poaceae, Chloridoideae), a species distributed from the southwestern United States to central Mexico, has long been recognized for exhibiting morphological and anatomical features atypical of Eragrostis. Phylogenetic analyses of nuclear internal transcribed spacer sequences and plastid sequences demonstrate that E. obtusiflora should be excluded from Eragrostis (Eragrostideae) and instead be placed in Cynodonteae, although its position within this tribe was unresolved. Additional data, including anatomical and micromorphological characters, suggest a close relationship with Distichlis. However, differences in spikelet and rhizome characters prevent its inclusion in Distichlis. Therefore, the species is transferred to a newly described …

A New Species Of Linanthus (Polemoniaceae) From San Bernardino County, California, Naomi S. Fraga, Duncan S. Bell

Aliso: A Journal of Systematic and Floristic Botany

Linanthus bernardinus is described as new from San Bernardino County, California. It is morphologically similar to L. killipii and L. orcuttii subsp. pacificus but differs from plants of these taxa in height, corolla length, seed morphology, and habitat. Linanthus bernardinus can be found growing in vernally moist areas within Joshua tree woodland, often in shallow depressions, or on gentle slopes, in decomposed granite sand that is surrounded by large granite boulder fields.

Evaluating The Success Of Seed Sowing In A New England Grassland, Chad C. Jones, Glenn D. Dreyer, Nels Barrett

Botany Faculty Publications

Grassland habitat is declining in the northeastern United States, leading to a decline in associated native species. Consequently, there is considerable interest by land managers in conserving and restoring grassland habitats in the Northeast. However, unlike the Great Plains and Europe, quantitative monitoring of restoration sites is uncommon, making it difficult to improve new restoration projects. Here we evaluate a grassland restoration in Waterford, Connecticut to determine if mechanical clearing of woody vegetation combined with sowing 23 native grasses and forbs led to successful establishment of these species. We also compared cover, diversity, and colonization by exotic and woody species …

Mohave Desert—An Overview And Byu's Lytle Preserve, Stanley L. Welsh, Larry St. Clair

Books by Faculty of the Monte L. Bean Life Science Museum

Table of Contents

Introduction

The Mohahve or Mohave (Mojave) gets its Explorer and its Name (sort of?)

The Frémont Odyssey through the Mohahve

What of the Crossing of the Mohahve?

References

BYU's Lytle Preserve

Acknowledgments

Species Status Of Sclerocactus Brevispinus, S. Wetlandicus, And S. Glaucus: Inferences From Morphology, Chloroplast Dna Sequences, And Aflp Markers, J. Mark Porter, Jennifer Cruse-Sanders, Linda Prince, Robert Lauri

Aliso: A Journal of Systematic and Floristic Botany

We examine patterns of variation in 12 continuous morphological traits, chloroplast DNA sequences from 10 intergenic spacer regions (petA-psbJ, psbk-trnS, psbM-trnD, rpob-trnC, trnC-trnD, trnGCU-trnG2S, trnFM-trnUGA, atpF-atpH, trnT-trnD, trnQ-psbk), atpF, and rpl16, and Amplified Fragment Length Polymorphism (AFLP) genetic markers in Sclerocactus glaucus sensu lato (= S. brevispinus, S. glaucus, and S. wetlandicus), a complex that historically has been considered conspecific and afforded protection …

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 14 2013, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Letter From The Dean, Michael Vayda

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Oaks For Nebraska, Justin R. Evertson

Nebraska Statewide Arboretum: Publications

R = belongs to red oak group—acorns mature over two seasons & leaves typically have pointed lobes.
W = belongs to white oak group— acorns mature in one season & leaves typically have rounded lobes.

Estimated size range is height x spread for trees growing in eastern Nebraska.

A few places to see oaks: Indian Cave State Park; Krumme Arboretum in Falls City; Peru State College; Fontenelle Nature Center in Bellevue; Elmwood Park in Omaha; Wayne Park in Waverly; University of Nebraska Lincoln; Lincoln Regional Center Arboretum; Ehman Park in Gothenburg; Highland Park in Hastings; UNL Extension Center & Cody …

Direct And Indirect Selection On Floral Pigmentation By Pollinators And Seed Predators In A Color Polymorphic South African Shrub, Jane E. Carlson, Kent E. Holsinger

EEB Articles

The coexistence of different color morphs is often attributed to variable selection pressures across space, time, morph frequencies or selection agents, but the routes by which each morph is favored are rarely identified. In this study we untangle the interactions and trait pleiotropisms that influence floral color polymorphisms on a local scale in Protea, within which ~40% of species are polymorphic. Previous work shows that seed predators and reproductive differences likely influence polymorphism maintenance in four Protea species. Here, we explore whether selection acts on floral color directly or indirectly in Protea aurea, using path analysis of pollinator …

Pollen Morphology Of Hymenosphace And Aethiopis Sections Of The Genus Salvia (Lamiaceae) In Turkey, Hülya Özler, Sevi̇l Pehli̇van, Ferhat Celep, Musa Doğan, Ahmet Kahraman, Ahter Fi̇şne, Bi̇rol Başer, Safi Bagherpour

Turkish Journal of Botany

Palynological characteristics of 30 Salvia taxa in sections Hymenosphace and Aethiopis from Turkey were investigated by light and scanning electron microscopy. S. aethiopis (sect. Aethiopis) has the smallest pollen while S. blepharochlaena (sect. Hymenosphace) has the largest pollen. The basic shape of the pollen grains in most taxa is suboblate, oblate-spheroidal, or prolate-spheroidal to spheroidal; however, subprolate pollen grains are occasionally are found in S. cassia of sect. Aethiopis. Hexacolpate pollen is dominant in all studied taxa, but heptacolpate and octacolpate pollen grains are mixed together in S. palaestina (heptacolpate, 20%) and S. candidissima subsp. candidissima (heptacolpate, 2% and octacolpate, …

Arbuscular Mycorrhizal Fungi Differ In Their Ability To Regulate The Expression Of Phosphate Transporters In Maize (Zea Mays L.), Hui Tian, Rhae A. Drijber, Xiaolin Li, Daniel N. Miller, Brian J. Wienhold

Department of Agronomy and Horticulture: Faculty Publications

Previous studies have found that some phosphate (Pi) starvation inducible transporter genes are downregulated and arbuscular mycorrhizal (AM) inducible Pi transporter genes are upregulated in maize roots associated with the fungus Glomus intraradices. However, little is known about the functional diversity of different AM fungal species in influencing the expression of Pi transporters in maize roots. Here, we studied the expression of two Pi transporter genes ZEAma:Pht1;3 (Pi starvation inducible) and ZEAma:Pht1;6 (AM inducible) in maize root colonized by different AM fungal inoculants. Non-mycorrhizal maize, maize colonized by Glomus deserticola (CA113), Glomus intraradices (IA506), Glomus mosseae (CA201), Gigaspora gigantea …

Differential Allocation To Photosynthetic And Non-Photosynthetic Nitrogen Fractions Among Native And Invasive Species, Jennifer L. Funk, Lori A. Glenwinkle, Lawren Sack

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Invasive species are expected to cluster on the “high-return” end of the leaf economic spectrum, displaying leaf traits consistent with higher carbon assimilation relative to native species. Intra-leaf nitrogen (N) allocation should support these physiological differences; however, N biochemistry has not been examined in more than a few invasive species. We measured 34 leaf traits including seven leaf N pools for five native and five invasive species from Hawaii under low irradiance to mimic the forest understory environment. We found several trait differences between native and invasive species. In particular, invasive species showed preferential N allocation to metabolism (amino acids) …

Morphometric Study Of Variation In The Genus Galeopsis (Lamiaceae), Michael T. Hughes

Masters Theses

The genus Galeopsis L. of the family Lamiaceae, also known as hemp-nettle, grows naturally in Europe and Asia, with four species naturalized in North America. The number of real species is in doubt, because of conflict over whether certain taxa are species, subspecies, or synonyms. The genus consists of five to eight taxa. I studied flower and leaf size ratios to clarify the distinctions of taxa in Galeopsis. These data were analyzed statistically, using cluster analysis, Principal Components Analysis (PCA), and Analysis of Variance (ANOVA). The results indicated that although some measurements, such as leaf width in G. angustifolia, …