Typifications of the Linnaean Name Equisetum Hyemale and E. ×Moorei (Equisetaceae)
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Plant Classification, Evolution and Reproduction
Plant Classification, Evolution, and Reproduction Plant classification, evolution and reproduction! Traditional plant classification! ! A phylogenetic perspective on classification! ! Milestones of land plant evolution! ! Overview of land plant diversity! ! Life cycle of land plants! Classification “the ordering of diversity into a meaningful hierarchical pattern” (i.e., grouping)! The Taxonomic Hierarchy! Classification of Ayahuasca, Banisteriopsis caapi! Kingdom !Plantae! Phylum !Magnoliophyta Class ! !Magnoliopsida! Order !Malpighiales! Family !Malpighiaceae Genus ! !Banisteriopsis! Species !caapi! Ranks above genus have standard endings.! Higher categories are more inclusive.! Botanical nomenclature Carolus Linnaeus (1707–1778)! Species Plantarum! published 1753! 7,300 species! Botanical nomenclature Polynomials versus binomials! Know the organism “The Molesting Salvinia” Salvinia auriculata (S. molesta)! hp://dnr.state.il.us/stewardship/cd/biocontrol/2floangfern.html " Taxonomy vs. classification! Assigning a name! A system ! ! ! Placement in a category! Often predictive ! because it is based on Replicable, reliable relationships! results! ! Relationships centered on genealogy ! ! ! ! Edward Hitchcock, Elementary Geology, 1940! Classification Phylogeny: Reflect hypothesized evolution. relationships! Charles Darwin, Origin of Species, 1859! Ernst Haeckel, Generelle Morphologie der Organismen, 1866! Branching tree-like diagrams representing relationships! Magnolia 1me 2 Zi m merman (1930) Lineage branching (cladogenesis or speciation) Modified -
<I>Equisetum Giganteum</I>
Florida International University FIU Digital Commons FIU Electronic Theses and Dissertations University Graduate School 3-24-2009 Ecophysiology and Biomechanics of Equisetum Giganteum in South America Chad Eric Husby Florida International University, [email protected] DOI: 10.25148/etd.FI10022522 Follow this and additional works at: https://digitalcommons.fiu.edu/etd Recommended Citation Husby, Chad Eric, "Ecophysiology and Biomechanics of Equisetum Giganteum in South America" (2009). FIU Electronic Theses and Dissertations. 200. https://digitalcommons.fiu.edu/etd/200 This work is brought to you for free and open access by the University Graduate School at FIU Digital Commons. It has been accepted for inclusion in FIU Electronic Theses and Dissertations by an authorized administrator of FIU Digital Commons. For more information, please contact [email protected]. FLORIDA INTERNATIONAL UNIVERSITY Miami, Florida ECOPHYSIOLOGY AND BIOMECHANICS OF EQUISETUM GIGANTEUM IN SOUTH AMERICA A dissertation submitted in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY in BIOLOGY by Chad Eric Husby 2009 To: Dean Kenneth Furton choose the name of dean of your college/school College of Arts and Sciences choose the name of your college/school This dissertation, written by Chad Eric Husby, and entitled Ecophysiology and Biomechanics of Equisetum Giganteum in South America, having been approved in respect to style and intellectual content, is referred to you for judgment. We have read this dissertation and recommend that it be approved. _______________________________________ Bradley C. Bennett _______________________________________ Jack B. Fisher _______________________________________ David W. Lee _______________________________________ Leonel Da Silveira Lobo O'Reilly Sternberg _______________________________________ Steven F. Oberbauer, Major Professor Date of Defense: March 24, 2009 The dissertation of Chad Eric Husby is approved. -
Equisetaceae – Horsetail Family
EQUISETACEAE – HORSETAIL FAMILY Plant: Stem: jointed, with nodes Root: Leaves: small, whorled, reduced and fused into sheaths with free tips (usually termed teeth) Flowers: no true flowers; spores (all alike) from sporphylls on sporangia located on cones (strobilus), spores usually green except in hybrids; male and female gametophytes green, male smaller than female Fruit: spores Other: worldwide; Division Equisetophyta, Horsetail Group Genera: 1 genus – Equisetum (horsetails or scouring rush), 15+ species WARNING – family descriptions are only a layman’s guide and should not be used as definitive EQUISETACEAE – HORSETAIL FAMILY Field Horsetail; Equisetum arvense L. [Common] Scouring Rush Horsetail; Equisetum hyemale L. var. affine (Engelm.) A.A. Eaton Field Horsetail USDA Equisetum arvense L. Equisetaceae (Horsetail Family) Oak Openings Metropark, Lucas County, Ohio Notes: Dimorphic (fertile and vegetative stems); fertile stems non-green, usually brownish, lacking stomata (pores), non-branching, shorter than veg. stems, sheath teeth dark, usually 14 or less, dies back after spores released; vegetative stems hollow and green, branched in whorls, branches solid with 3-4 ridges; spring [V Max Brown, 2008] [Common] Scouring Rush USDA Horsetail Equisetum hyemale L. var. affine (Engelm.) A.A. Eaton Equisetaceae (Horsetail Family) Alley Springs, Shannon County, Missouri Notes: medium to tall plant, up to 220 cm, unbranched stem (or with a few scattered branches), usually persists more than one year (perennial), with 14 to 50 ridges, stomatal lines single, often rough to the touch; sheaths dark at most nodes (often 2 dark bands separated by a white band), 14 or more teeth; apex of cone fairly sharp or pointed; spores green and spherical; often found on banks of streams, ponds, and margins of lakes as well as along ditches, roadsides, etc.; spring to summer [V Max Brown, 2008]. -
The Promise of Next-Generation Taxonomy
Megataxa 001 (1): 035–038 ISSN 2703-3082 (print edition) https://www.mapress.com/j/mt/ MEGATAXA Copyright © 2020 Magnolia Press Correspondence ISSN 2703-3090 (online edition) https://doi.org/10.11646/megataxa.1.1.6 The promise of next-generation taxonomy MIGUEL VENCES Zoological Institute, Technische Universität Braunschweig, Mendelssohnstr. 4, 38106 Braunschweig, Germany �[email protected]; https://orcid.org/0000-0003-0747-0817 Documenting, naming and classifying the diversity and concepts. We should meet three main challenges, of life on Earth provides baseline information on the using new technological developments without throwing biosphere, which is crucially important to understand and the well-tried and successful foundations of Linnaean mitigate the global changes of the Anthropocene. Since nomenclature overboard. Linnaeus, taxonomists have named about 1.8 million species (Roskov et al. 2019) and continue doing so at 1. Fully embrace cybertaxonomy, machine learning a rate of about 15,000–20,000 species per year (IISE and DNA taxonomy to ease, not burden the workflow 2011). Natural history collections—museums, herbaria, of taxonomists. culture collections and others—hold billions of collection specimens (Brooke 2000) and have teamed up to Computer power and especially, DNA sequencing capacity assemble a cybertaxonomic infrastructure that mobilizes increases faster than exponentially (e.g., Rupp 2018) metadata and images of voucher specimens, now even and new technologies offer unprecedented opportunities at the scale of digitizing entire collections of millions for classifying specimens based on molecular evidence of insect or herbaria vouchers in automated imaging or image analysis. Yet, the vast majority of species lines (e.g., Tegelberg et al. -
Ferns of the National Forests in Alaska
Ferns of the National Forests in Alaska United States Forest Service R10-RG-182 Department of Alaska Region June 2010 Agriculture Ferns abound in Alaska’s two national forests, the Chugach and the Tongass, which are situated on the southcentral and southeastern coast respectively. These forests contain myriad habitats where ferns thrive. Most showy are the ferns occupying the forest floor of temperate rainforest habitats. However, ferns grow in nearly all non-forested habitats such as beach meadows, wet meadows, alpine meadows, high alpine, and talus slopes. The cool, wet climate highly influenced by the Pacific Ocean creates ideal growing conditions for ferns. In the past, ferns had been loosely grouped with other spore-bearing vascular plants, often called “fern allies.” Recent genetic studies reveal surprises about the relationships among ferns and fern allies. First, ferns appear to be closely related to horsetails; in fact these plants are now grouped as ferns. Second, plants commonly called fern allies (club-mosses, spike-mosses and quillworts) are not at all related to the ferns. General relationships among members of the plant kingdom are shown in the diagram below. Ferns & Horsetails Flowering Plants Conifers Club-mosses, Spike-mosses & Quillworts Mosses & Liverworts Thirty of the fifty-four ferns and horsetails known to grow in Alaska’s national forests are described and pictured in this brochure. They are arranged in the same order as listed in the fern checklist presented on pages 26 and 27. 2 Midrib Blade Pinnule(s) Frond (leaf) Pinna Petiole (leaf stalk) Parts of a fern frond, northern wood fern (p. -
The Origin of the Male and Female Symbols of Biology Author(S): William T
The Origin of the Male and Female Symbols of Biology Author(s): William T. Stearn Source: Taxon, Vol. 11, No. 4 (May, 1962), pp. 109-113 Published by: International Association for Plant Taxonomy (IAPT) Stable URL: http://www.jstor.org/stable/1217734 . Accessed: 29/03/2014 09:56 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. International Association for Plant Taxonomy (IAPT) is collaborating with JSTOR to digitize, preserve and extend access to Taxon. http://www.jstor.org This content downloaded from 212.238.37.228 on Sat, 29 Mar 2014 09:56:07 AM All use subject to JSTOR Terms and Conditions A12 S^ MAY 1962 VOL. X No. 4 TAXON Official News Bulletinof the InternationalAssociation for Plant Taxonomy.Edited and Publishedfor I.A.P.T. by the InternationalBureaufor Plant Taxonomyand Nomenclature.106 LangeNieuwstraat.Utrecht. Netherlands THE ORIGIN OF THE MALE AND FEMALE SYMBOLS OF BIOLOGY* William T. Steam (London) The symbols 6 and ?, so widely used in modern biology to distinguish male and female organs or individuals, have a long complex history which touches upon mythology, astrology, alchemy, palaeography, pharmacy, chemistry, heraldry and, as regards their biological application, the schooling and psychology of the Swedish naturalist Carl Linnaeus (1707-78). -
Sobre Los Equisetum × Trachyodon Y Equisetum Variegatum De La Val D´Aiguamòg (Valle De Arán)
Flora Montiberica 62: 37-42 (I-2016). ISSN: 1138-5952, edic. digital: 1988-799X SOBRE LOS EQUISETUM × TRACHYODON Y EQUISETUM VARIEGATUM DE LA VAL D´AIGUAMÒG (VALLE DE ARÁN) Juan A. ALEJANDRE SÁENZ1, María Josefa ESCALANTE RUIZ1 2 & José Vicente FERRÁNDEZ PALACIO 1C/ Txalaparta, 3, 1º izda. 01006-VITORIA 2C/ Segura, 73. Monzón. 22400-HUESCA RESUMEN: Se aportan testimonios de herbario que contribuyen a con- firmar la presencia actual de Equisetum variegatum Schleich. ex F. Weber & D. Mohr y de una población clonal de Equisetum × trachyodon A. Braun en la zo- na media-alta de la Val d´Aiguamòg (Valle de Arán, Pirineo catalán). Palabras clave: Flora, Equisetum, Pirineo catalán, España. ABSTRACT: Some voucher specimens which contribute to confirm the current presence of Equisetum variegatum Schleich. ex F. Weber & D. Mohr and a clonal population of Equisetum × trachyodon A. Braun in the middle- upper zone of Val d´Aiguamòg (Valle de Arán, Lérida, N Spain) are provided. Keywords: Flora, Equisetum, Catalan Pyrenees, Spain. INTRODUCCIÓN ros en los que observar el contenido esporangial –elemento probatorio de pri- Según lo que se afirma en AYME- mera magnitud en el género Equisetum–. RICH & SÁEZ (2013: 181), los datos com- En una venturosa excursión a esa zona probados con los que se cuenta hasta el que nosotros hicimos el 11 de julio de presente sobre la presencia actual de 2011, con la intención de comparar nues- Equisetum variegatum A. Braun y de tras recolecciones de Equisetum, princi- E. × trachyodon Schleich., en la Val palmente del E. × trachyodon, proce- d´Aiguamòg no llegan a despejar algu- dentes del macizo del Castro Valnera nas dudas sobre la existencia del prime- (Cordillera Cantábrica entre Burgos y ro de ellos en esa zona ni totalmente Cantabria), tuvimos la fortuna de locali- sobre la identidad de los testimonios que zar una población dispersa de E. -
Scouring-Rush Horsetail Scientific Name: Equisetum Hyemale Order
Common Name: Scouring-rush Horsetail Scientific Name: Equisetum hyemale Order: Equisetales Family: Equisetaceae Wetland Plant Status: Facultative Ecology & Description Scouring-rush horsetail is an evergreen, perennial plant that completes a growing season in two years. At maturity, scouring-rush horsetail usually averages 3 feet in height but can be range anywhere from 2 to 5 feet. It can survive in a variety of environments. One single plant can spread 6 feet in diameter. It has cylindrical stems that averages a third of an inch in diameter. Noticeably spotted are the jointed unions that are located down the plant. The stems are hollow and don’t branch off into additional stems. Also, scouring- rush horsetail has rough ridges that run longitudinal along the stem. Although not covered in leaves, tiny leaves are joined together around the stem which then forms a black or green band, or sheath at each individual joint on the stem. This plant has an enormous root system that can reach 6 feet deep and propagates in two ways: rhizomes and spores. Incredibly, due to the fact that this plant is not full of leaves, it is forced to photosynthesize through the stem rather than leaves. Habitat Scouring-rush horsetail is highly tolerant of tough conditions. It can survive and thrive in full sun or part shade and can successfully grow in a variety of soil types. It can also grow in moderate to wet soils, and can survive in up to 4 inches of water. Distribution Scouring-rush horsetail can be found throughout the United States, Eurasia, and Canada. -
Ferns and Fern Allies
PTERIDOPHYTES Ferns and Fern Allies The Pteridophytes (seedless vascular plants) consist of 4 Divisions circa 1993 (Flora of NA, V. 1) due to their similarities (discussed below) in anatomy and morphology and their differences from higher seed plants*. World-wide there are about 25 families, 255+ 1- Lycopodiophyta (Club-Mosses) genera, and perhaps 10,000+ species. In North America there are about 77 genera and 440+ 2- Psilotophyta (Whisk Ferns) species (Flora of North America, V.2). – see 3- Equisetophyta (Horsetails) next slide for more information. 4- Polypodiophyta (True Ferns) Reproduction is by spores (also by vegetative or asexual means) - no true flowers, fruits or seeds are present. They exhibit a life cycle of alternation of generations (sporophyte and gametophyte). The sporophyte generation is the larger phase that we commonly see in the field and produces haploid spores by meiosis. These spores disseminate mostly by wind (sometimes water), produce a Prothallus (gametophyte generation), a very small, free-living or independent phase, that produces both sperm (from antheridia) and eggs (from archegonia) – gametes or sex cells. The sperm swims to the egg on its own prothallus or on another (water must be present in most cases) and fertilization results with the production of the diploid generation from which a new sporophyte generation is produced. *Botanists today, due to DNA studies and many additional examples, believe that the Lycophytes branched early (forming a distinct Clade or branch of a phylogenetic tree) and the Pteridophytes form another later distinct Clade (or branch) that is closer to the seed plants (a revised classification is below). -
Ferns Robert H
Southern Illinois University Carbondale OpenSIUC Illustrated Flora of Illinois Southern Illinois University Press 10-1999 Ferns Robert H. Mohlenbrock Southern Illinois University Carbondale Follow this and additional works at: http://opensiuc.lib.siu.edu/siupress_flora_of_illinois Part of the Botany Commons Recommended Citation Mohlenbrock, Robert H., "Ferns" (1999). Illustrated Flora of Illinois. 3. http://opensiuc.lib.siu.edu/siupress_flora_of_illinois/3 This Book is brought to you for free and open access by the Southern Illinois University Press at OpenSIUC. It has been accepted for inclusion in Illustrated Flora of Illinois by an authorized administrator of OpenSIUC. For more information, please contact [email protected]. THE ILLUSTRATED FLORA OF ILLINOIS ROBERT H. MOHLENBROCK, General Editor THE ILLUSTRATED FLORA OF ILLINOIS s Second Edition Robert H. Mohlenbrock SOUTHERN ILLINOIS UNIVERSITY PRESS Carbondale and Edwardsville COPYRIGHT© 1967 by Southern Illinois University Press SECOND EDITION COPYRIGHT © 1999 by the Board of Trustees, Southern Illinois University All rights reserved Printed in the United States of America 02 01 00 99 4 3 2 1 Library of Congress Cataloging-in-Publication Data Mohlenbrock, Robert H., 1931- Ferns I Robert H. Mohlenbrock. - 2nd ed. p. em.- (The illustrated flora of Illinois) Includes bibliographical references and index. 1. Ferns-Illinois-Identification. 2. Ferns-Illinois-Pictorial works. 3. Ferns-Illinois-Geographical distribution-Maps. 4. Botanical illustration. I. Title. II. Series. QK525.5.I4M6 1999 587'.3'09773-dc21 99-17308 ISBN 0-8093-2255-2 (cloth: alk. paper) CIP The paper used in this publication meets the minimum requirements of American National Standard for Information Sciences-Permanence of Paper for Printed Library Materials, ANSI Z39.48-1984.§ This book is dedicated to Miss E. -
Subclase Equisetidae ¿Tienes Alguna Duda, Sugerencia O Corrección Acerca De Este Taxón? Envíanosla Y Con Gusto La Atenderemos
subclase Equisetidae ¿Tienes alguna duda, sugerencia o corrección acerca de este taxón? Envíanosla y con gusto la atenderemos. Ver todas las fotos etiquetadas con Equisetidae en Banco de Imagénes » Descripción de WIKIPEDIAES Ver en Wikipedia (español) → Ver Pteridophyta para una introducción a las plantas Equisetos vasculares sin semilla Rango temporal: Devónico-Holoceno PreЄ Є O S D C P T J K Pg N Los equisetos , llamados Equisetidae en la moderna clasificación de Christenhusz et al. 2011,[1] [2] [3] o también Equisetopsida o Equisetophyta, y en paleobotánica es más común Sphenopsida, son plantas vasculares afines a los helechos que aparecieron en el Devónico, pero que actualmente sobrevive únicamente el género Equisetum, si bien hay representantes de órdenes extintos que se verán en este artículo. Este grupo es monofilético, aun con sus representantes extintos, debido a su morfología distintiva. Son plantas pequeñas, aunque en el pasado una variedad de calamitácea alcanzó los 15 metros durante el pérmico.[4] Índice 1 Filogenia 1.1 Ecología y evolución 2 Taxonomía 2.1 Sinonimia Variedades de Equisetum 2.2 Sistema de Christenhusz et al. 2011 Taxonomía 2.3 Clasificación sensu Smith et al. 2006 2.4 Otras clasificaciones Reino: Plantae 3 Caracteres Viridiplantae 4 Véase también Streptophyta 5 Referencias Streptophytina 6 Bibliografía Embryophyta (sin rango) 7 Enlaces externos Tracheophyta Euphyllophyta Monilophyta Filogenia[editar] Equisetopsida o Sphenopsida Introducción teórica en Filogenia Clase: C.Agardh 1825 / Engler 1924 Equisetidae Los análisis moleculares y genéticos de filogenia solo Subclase: se pueden hacer sobre representantes vivientes, Warm. 1883 como circunscripto según Smith et al. (2006) (ver la Órdenes ficha), al menos Equisetales es monofilético (Pryer et Equisetales (DC. -
Taxonomic Novelties in the Fern Genus Tectaria (Tectariaceae)
Phytotaxa 122 (1): 61–64 (2013) ISSN 1179-3155 (print edition) www.mapress.com/phytotaxa/ Article PHYTOTAXA Copyright © 2013 Magnolia Press ISSN 1179-3163 (online edition) http://dx.doi.org/10.11646/phytotaxa.122.1.3 Taxonomic novelties in the fern genus Tectaria (Tectariaceae) HUI-HUI DING1,2, YI-SHAN CHAO3 & SHI-YONG DONG1* 1 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China. 2 Graduate University of the Chinese Academy of Sciences, Beijing 100093, China. 3 Division of Botanical Garden, Taiwan Forestry Research Institute, Taipei 10066, Taiwan. * Corresponding author: [email protected] Abstract The misapplication of the name Tectaria griffithii is corrected, which results in the revival of T. multicaudata and the proposal of a new combination (T. multicaudata var. amplissima) and two new synonyms (T. yunnanensis and T. multicaudata var. singaporeana). For the reduction of Psomiocarpa and Tectaridium (previously monotypic genera) into Tectaria, T. macleanii (new combination) and T. psomiocarpa (new name) are proposed as new combinations. In addition, the new name Tectaria subvariolosa is put forward to replace a later homonym (T. stenosemioides). Key words: nomenclature, Psomiocarpa, taxonomy, Tectaridium Introduction Tectaria Cavanilles (1799) (Tectariaceae) is a fern genus frequent in tropical regions, with most species growing terrestrially in rain forests. This group is remarkable for its extremely diverse morphology, and the estimated number of species ranges from 150 (Tryon & Tryon 1982; Kramer 1990) to 210 (Holttum 1991a). Holttum (1991a) recognized 105 species in Tectaria from Malesia and presumed that SE Asia is its center of origin.