Mr Kirangeorgekoshy Bryophyt
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Phytotaxa, a Synthesis of Hornwort Diversity
Phytotaxa 9: 150–166 (2010) ISSN 1179-3155 (print edition) www.mapress.com/phytotaxa/ Article PHYTOTAXA Copyright © 2010 • Magnolia Press ISSN 1179-3163 (online edition) A synthesis of hornwort diversity: Patterns, causes and future work JUAN CARLOS VILLARREAL1 , D. CHRISTINE CARGILL2 , ANDERS HAGBORG3 , LARS SÖDERSTRÖM4 & KAREN SUE RENZAGLIA5 1Department of Ecology and Evolutionary Biology, University of Connecticut, 75 North Eagleville Road, Storrs, CT 06269; [email protected] 2Centre for Plant Biodiversity Research, Australian National Herbarium, Australian National Botanic Gardens, GPO Box 1777, Canberra. ACT 2601, Australia; [email protected] 3Department of Botany, The Field Museum, 1400 South Lake Shore Drive, Chicago, IL 60605-2496; [email protected] 4Department of Biology, Norwegian University of Science and Technology, N-7491 Trondheim, Norway; [email protected] 5Department of Plant Biology, Southern Illinois University, Carbondale, IL 62901; [email protected] Abstract Hornworts are the least species-rich bryophyte group, with around 200–250 species worldwide. Despite their low species numbers, hornworts represent a key group for understanding the evolution of plant form because the best–sampled current phylogenies place them as sister to the tracheophytes. Despite their low taxonomic diversity, the group has not been monographed worldwide. There are few well-documented hornwort floras for temperate or tropical areas. Moreover, no species level phylogenies or population studies are available for hornworts. Here we aim at filling some important gaps in hornwort biology and biodiversity. We provide estimates of hornwort species richness worldwide, identifying centers of diversity. We also present two examples of the impact of recent work in elucidating the composition and circumscription of the genera Megaceros and Nothoceros. -
Liverworts of the Wellington Area J
Liverworts of the Wellington Area J. E. Braggins1 LIVERWORT FEATURES Liverworts are plants similar in many ways to mosses: they are usually small, and generally lack the hard supporting tissues of larger plants such as ferns. Like ferns, liverworts show alternation of generations, having separate gametophyte and sporophyte entities; unlike ferns the sporophyte is not a separate plant. As with mosses, the gametophyte generation is the dominant phase of the life cy- cle, and the sporophyte generation is permanently dependent on it. Liverworts show a greater range in general morphology and form than mosses, and as well as normal leafy plants, there are dozens of species of thalloid liverworts that lack organisation into stems and leaves. The most striking differences between mosses and liverworts are in the sporophytes where liverworts have a simple outer wall lacking the peristome of mosses, and in the capsule which usually splits into four valves to release the spores. Mixed amongst the spores are hair- like elaters, which flick and twist as they dry out, helping to throw the spores clear. The stalk that bears the capsule (the seta) remains short until the capsule is mature, then, by cell elongation, it expands rapidly to its full size. Thus, the expanded seta of a liverwort is a delicate translucent structure, not tough and wiry like a moss seta which elongates slowly by cell growth. The vegetative parts of leafy liverworts differ from mosses in details of cell shape, contents, leaf structure (liverwort leaves lack a central nerve or vein), shape (liverwort leaves are rarely markedly elongate but are often complexly lobed) and position. -
From Southern Africa. 1. the Genus Dumortiera and D. Hirsuta; the Genus Lunularia and L
Bothalia 23,1: 4 9 -5 7 (1993) Studies in the Marchantiales (Hepaticae) from southern Africa. 1. The genus Dumortiera and D. hirsuta; the genus Lunularia and L. cruciata S.M. PEROLD* Keywords: Dumortiera, D. hirsuta, Dumortieroideae, Hepaticae, Lunularia, L cruciata. Lunulariaceae, Marchantiaceae, Marchantiales, taxonomy, southern Africa, Wiesnerellaceae ABSTRACT The genera Dumortiera (Dumortieroideae, Marchantiaceae) and Lunularia (Lunulariaceae), are briefly discussed. Each genus is represented in southern Africa by only one subcosmopolitan species, D. hirsuta (Swartz) Nees and L. cruciata (L.) Dum. ex Lindberg respectively. UITTREKSEL Die genusse Dumortiera (Dumortieroideae, Marchantiaceae) en Lunularia (Lunulariaceae) word kortliks bespreek. In suidelike Afrika word elke genus verteenwoordig deur slegs een halfkosmopolitiese spesie, D. hirsuta (Swartz) Nees en L. cruciata (L.) Dum. ex Lindberg onderskeidelik. DUMORTIERA Nees Monoicous or dioicous. Antheridia sunken in subses sile disciform receptacles, which are fringed with bristles Dumortiera Nees ab Esenbeck in Reinwardt, Blume and borne singly at apex of thallus on short bifurrowed & Nees ab Esenbeck, Hepaticae Javanicae, Nova Acta stalk. Archegonia in groups of 8—16 in saccate, fleshy Academiae Caesareae Leopoldina-Carolinae Germanicae involucres, on lower surface of 6—8-lobed disciform Naturae Curiosorum XII: 410 (1824); Gottsche et al.: 542 receptacle with marginal sinuses dorsally, raised on stalk (1846); Schiffner: 35 (1893); Stephani: 222 (1899); Sim: with two rhizoidal furrows; after fertilization and 25 (1926); Muller: 394 (1951-1958); S. Amell: 52 (1963); maturation, each involucre generally containing a single Hassel de Men^ndez: 182 (1963). Type species: Dumor sporophyte consisting of foot, seta and capsule; capsule tiera hirsuta (Swartz) Nees. wall unistratose, with annular thickenings, dehiscing irre gularly. -
Plant Life MagillS Encyclopedia of Science
MAGILLS ENCYCLOPEDIA OF SCIENCE PLANT LIFE MAGILLS ENCYCLOPEDIA OF SCIENCE PLANT LIFE Volume 4 Sustainable Forestry–Zygomycetes Indexes Editor Bryan D. Ness, Ph.D. Pacific Union College, Department of Biology Project Editor Christina J. Moose Salem Press, Inc. Pasadena, California Hackensack, New Jersey Editor in Chief: Dawn P. Dawson Managing Editor: Christina J. Moose Photograph Editor: Philip Bader Manuscript Editor: Elizabeth Ferry Slocum Production Editor: Joyce I. Buchea Assistant Editor: Andrea E. Miller Page Design and Graphics: James Hutson Research Supervisor: Jeffry Jensen Layout: William Zimmerman Acquisitions Editor: Mark Rehn Illustrator: Kimberly L. Dawson Kurnizki Copyright © 2003, by Salem Press, Inc. All rights in this book are reserved. No part of this work may be used or reproduced in any manner what- soever or transmitted in any form or by any means, electronic or mechanical, including photocopy,recording, or any information storage and retrieval system, without written permission from the copyright owner except in the case of brief quotations embodied in critical articles and reviews. For information address the publisher, Salem Press, Inc., P.O. Box 50062, Pasadena, California 91115. Some of the updated and revised essays in this work originally appeared in Magill’s Survey of Science: Life Science (1991), Magill’s Survey of Science: Life Science, Supplement (1998), Natural Resources (1998), Encyclopedia of Genetics (1999), Encyclopedia of Environmental Issues (2000), World Geography (2001), and Earth Science (2001). ∞ The paper used in these volumes conforms to the American National Standard for Permanence of Paper for Printed Library Materials, Z39.48-1992 (R1997). Library of Congress Cataloging-in-Publication Data Magill’s encyclopedia of science : plant life / edited by Bryan D. -
Ordovician Land Plants and Fungi from Douglas Dam, Tennessee
PROOF The Palaeobotanist 68(2019): 1–33 The Palaeobotanist 68(2019): xxx–xxx 0031–0174/2019 0031–0174/2019 Ordovician land plants and fungi from Douglas Dam, Tennessee GREGORY J. RETALLACK Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA. *Email: gregr@uoregon. edu (Received 09 September, 2019; revised version accepted 15 December, 2019) ABSTRACT The Palaeobotanist 68(1–2): Retallack GJ 2019. Ordovician land plants and fungi from Douglas Dam, Tennessee. The Palaeobotanist 68(1–2): xxx–xxx. 1–33. Ordovician land plants have long been suspected from indirect evidence of fossil spores, plant fragments, carbon isotopic studies, and paleosols, but now can be visualized from plant compressions in a Middle Ordovician (Darriwilian or 460 Ma) sinkhole at Douglas Dam, Tennessee, U. S. A. Five bryophyte clades and two fungal clades are represented: hornwort (Casterlorum crispum, new form genus and species), liverwort (Cestites mirabilis Caster & Brooks), balloonwort (Janegraya sibylla, new form genus and species), peat moss (Dollyphyton boucotii, new form genus and species), harsh moss (Edwardsiphyton ovatum, new form genus and species), endomycorrhiza (Palaeoglomus strotheri, new species) and lichen (Prototaxites honeggeri, new species). The Douglas Dam Lagerstätte is a benchmark assemblage of early plants and fungi on land. Ordovician plant diversity now supports the idea that life on land had increased terrestrial weathering to induce the Great Ordovician Biodiversification Event in the sea and latest Ordovician (Hirnantian) -
A New Species of the Genus Jungermannia (Jungermanniales, Marchantiophyta) from the Caucasus with Notes on Taxa Delimitation and Taxonomy of Jungermannia S
Phytotaxa 255 (3): 227–239 ISSN 1179-3155 (print edition) http://www.mapress.com/j/pt/ PHYTOTAXA Copyright © 2016 Magnolia Press Article ISSN 1179-3163 (online edition) http://dx.doi.org/10.11646/phytotaxa.255.3.4 A new species of the genus Jungermannia (Jungermanniales, Marchantiophyta) from the Caucasus with notes on taxa delimitation and taxonomy of Jungermannia s. str. NADEZDA A. KONSTANTINOVA1 & ANNA A. VILNET1 1Polar-Alpine Botanical Garden–Institute RAS, 184256, Kirovsk, Russia, email: [email protected], [email protected] Abstract The new species Jungermannia calcicola Konstant. et Vilnet, is described based on a critical reinvestigation of morphologi- cal features and molecular analyses of trnL–trnF and trnG intron cpDNA sequences of forty samples of Jungermannia s. str. The new species is described and illustrated as well as noting its differentiation from allied species and distribution patterns. New data on some taxonomical ambiguities and on the taxa delimitation in the Jungermannia s. str. are discussed. Key words: Jungermannia calcicola sp. nov., liverworts, taxonomy, molecular systematics, distribution Introduction Jungermannia Linnaeus (1753: 1131) is one of the oldest described genera of leafy liverworts. Since its description the treatment of this genus has been drastically changed. At the end of the 20th to the beginning of the 21st centuries most bryologists accepted Jungermannia in the wide sense including Solenostoma Mitten (1865a: 51), Plectocolea (Mitten 1865b: 156) Mitten (1873: 405), Liochlaena Nees in Gottsche et al. (1845: 150). But in recent molecular phylogenetic studies Jungermannia s. lat. has been proved to be a mixture of phylogenetically unrelated taxa, some of which have been elevated to distinct families, e.g., Solenostomataceae Stotler et Crand.-Stotl. -
Aquatic and Wet Marchantiophyta, Order Metzgeriales: Aneuraceae
Glime, J. M. 2021. Aquatic and Wet Marchantiophyta, Order Metzgeriales: Aneuraceae. Chapt. 1-11. In: Glime, J. M. Bryophyte 1-11-1 Ecology. Volume 4. Habitat and Role. Ebook sponsored by Michigan Technological University and the International Association of Bryologists. Last updated 11 April 2021 and available at <http://digitalcommons.mtu.edu/bryophyte-ecology/>. CHAPTER 1-11: AQUATIC AND WET MARCHANTIOPHYTA, ORDER METZGERIALES: ANEURACEAE TABLE OF CONTENTS SUBCLASS METZGERIIDAE ........................................................................................................................................... 1-11-2 Order Metzgeriales............................................................................................................................................................... 1-11-2 Aneuraceae ................................................................................................................................................................... 1-11-2 Aneura .......................................................................................................................................................................... 1-11-2 Aneura maxima ............................................................................................................................................................ 1-11-2 Aneura mirabilis .......................................................................................................................................................... 1-11-7 Aneura pinguis .......................................................................................................................................................... -
Christopher M. Steenbock 2, Ruth A. Stockey 3, Graham Beard 4, And
American Journal of Botany 98(6): 998–1006. 2011. A NEW FAMILY OF LEAFY LIVERWORTS FROM THE MIDDLE EOCENE OF VANCOUVER ISLAND, BRITISH COLUMBIA, CANADA 1 Christopher M. Steenbock 2 , Ruth A. Stockey 3, Graham Beard 4 , and Alexandru M. F. Tomescu 2,5 2 Department of Biological Sciences, Humboldt State University, Arcata, California 95521 USA; 3 Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada; and 4 Vancouver Island Paleontology Museum, Qualicum Beach, British Columbia V9K 1K7, Canada • Premise of the study: Morphology is a refl ection of evolution, and as the majority of biodiversity that has lived on Earth is now extinct, the study of the fossil record provides a more complete picture of evolution. This study investigates anatomically pre- served bryophyte fossils from the Eocene Oyster Bay Formation of Vancouver Island. While the bryophyte fossil record is limited in general, anatomically preserved bryophytes are even more infrequent; thus, the Oyster Bay bryophytes are a particu- larly signifi cant addition to the bryophyte fossil record. • Methods: Fossils occur in two marine carbonate nodules collected from the Appian Way locality on the eastern shore of Van- couver Island, British Columbia, and were prepared using the cellulose acetate peel technique. • Key results: The fossils exhibit a novel combination of characters unknown among extinct and extant liverworts: (1) three- ranked helical phyllotaxis with underleaves larger than the lateral leaves; (2) fascicled rhizoids associated with the leaves of all three ranks; (3) Anomoclada -type endogenous branching. • Conclusions: A new liverwort family, Appianacae fam. nov., is established based upon the novel combination of characters. -
Desktop Biodiversity Report
Desktop Biodiversity Report Land at Balcombe Parish ESD/14/747 Prepared for Katherine Daniel (Balcombe Parish Council) 13th February 2014 This report is not to be passed on to third parties without prior permission of the Sussex Biodiversity Record Centre. Please be aware that printing maps from this report requires an appropriate OS licence. Sussex Biodiversity Record Centre report regarding land at Balcombe Parish 13/02/2014 Prepared for Katherine Daniel Balcombe Parish Council ESD/14/74 The following information is included in this report: Maps Sussex Protected Species Register Sussex Bat Inventory Sussex Bird Inventory UK BAP Species Inventory Sussex Rare Species Inventory Sussex Invasive Alien Species Full Species List Environmental Survey Directory SNCI M12 - Sedgy & Scott's Gills; M22 - Balcombe Lake & associated woodlands; M35 - Balcombe Marsh; M39 - Balcombe Estate Rocks; M40 - Ardingly Reservior & Loder Valley Nature Reserve; M42 - Rowhill & Station Pastures. SSSI Worth Forest. Other Designations/Ownership Area of Outstanding Natural Beauty; Environmental Stewardship Agreement; Local Nature Reserve; National Trust Property. Habitats Ancient tree; Ancient woodland; Ghyll woodland; Lowland calcareous grassland; Lowland fen; Lowland heathland; Traditional orchard. Important information regarding this report It must not be assumed that this report contains the definitive species information for the site concerned. The species data held by the Sussex Biodiversity Record Centre (SxBRC) is collated from the biological recording community in Sussex. However, there are many areas of Sussex where the records held are limited, either spatially or taxonomically. A desktop biodiversity report from SxBRC will give the user a clear indication of what biological recording has taken place within the area of their enquiry. -
AMBRA1 Controls Plant Development and Senescence in Physcomitrella Patens
Presentation type: Oral Presentation, Poster Presentation (underline the preferred type) AMBRA1 controls plant development and senescence in Physcomitrella patens. Alessandro Alboresi1, Jessica Ceccato1, Tomas Morosinotto1, Luisa Dalla Valle1. The first one should be the presenting/corresponding author (underlined) 1Dipartimento di Biologia, Università di Padova, Via Ugo Bassi 58/B, 35121, Padova ([email protected]; [email protected]; [email protected]) Autophagy is a universal mechanism that in plants control development, resistance to stresses and starvation. The role of autophagy is possible thanks to the programmed degradation of cell material that is delivered to the vacuole where hydrolases and proteases are localized. So far, many autophagy-related proteins (ATGs) have been identified. Some of them are universal, some are either specific to animals, plants or yeast. ATG protein complexes govern autophagosome initiation, nucleation, expansion, and maturation. In particular, the regulation of nucleation by the ATG6 (Beclin-1 in mammals) complex has not been well defined in plants. Here we described the study of the Activating Molecule in Beclin 1-Regulated Autophagy (AMBRA1) protein, recently identified in mice and then characterized in our department in zebrafish and in the non-vertebrate chordate Botryllus schlosseri. In animals AMBRA1 is a positive regulator of autophagy that binds Beclin-1 upon autophagic stimuli. AMBRA1 is a large intrinsically disordered protein, able to bind other regulatory partners involved in cell processes such as autophagy, apoptosis, cell proliferation, development and cancer. AMBRA1 sequence was found in plant genomes and we are studying its function in Physcomitrella patens where two lowly expressed genes are present, AMBRA1a and AMBRA1b. -
Plant of the Week Liverworts
Plant of the Week LLiivveerrwwoorrttss It is hard to believe that a group of plants that includes so many beautiful species, has been saddled with such an awful name. The name liverwort comes from the Anglo- Saxon word “lifer” (liver) and “wyrt” (a plant), the inference being that plants that look like organs of the human body might 1 Telaranea centipes – a leafy provide medicinal benefits for that organ . liverwort Photo: Ron Oldfield Liverworts are close relatives of mosses. Traditionally, they were considered to be one class (Hepaticae) of the division Bryophyta of the Plant Kingdom. The other two classes were the mosses (musci) and the hornworts (Anthocerotae). Using modern molecular techniques, botanists have now elevated each of these classes to divisions of the plant kingdom, so now only mosses belong to the Division Bryophyta. Liverworts are placed in the Division Marchantiophyta and hornworts in the Division Anthocerophyta. All three divisions are now collectively referred to as “Embryophytes”, that is, land plants that do not have a vascular system. Embryophytes are believed to have evolved from a family of freshwater algae, the Charophyceae. In 1994, it was proposed that the three lineages of bryophytes, formed a gradient leading to the vascular plants. The most recent hypothesis is that hornworts share a common ancestor with vascular plants and liverworts are a sister lineage to all other extant embryophytes. Mosses bridge the gap between liverworts 2 and hornworts . Liverworts Mosses Hornworts Tracheophyte s Charophyceae Lunularia cruciata – a thallose liverwort Photo: Ron Oldfield There are two readily identifiable groups of liverworts: thallose liverworts appear to be relatively simple structures, and form flattened green plates that are not differentiated into stems and leaves. -
Evolution and Networks in Ancient and Widespread Symbioses Between Mucoromycotina and Liverworts
This is a repository copy of Evolution and networks in ancient and widespread symbioses between Mucoromycotina and liverworts. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/150867/ Version: Published Version Article: Rimington, WR, Pressel, S, Duckett, JG et al. (2 more authors) (2019) Evolution and networks in ancient and widespread symbioses between Mucoromycotina and liverworts. Mycorrhiza, 29 (6). pp. 551-565. ISSN 0940-6360 https://doi.org/10.1007/s00572-019-00918-x Reuse This article is distributed under the terms of the Creative Commons Attribution (CC BY) licence. This licence allows you to distribute, remix, tweak, and build upon the work, even commercially, as long as you credit the authors for the original work. More information and the full terms of the licence here: https://creativecommons.org/licenses/ Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ Mycorrhiza (2019) 29:551–565 https://doi.org/10.1007/s00572-019-00918-x ORIGINAL ARTICLE Evolution and networks in ancient and widespread symbioses between Mucoromycotina and liverworts William R. Rimington1,2,3 & Silvia Pressel2 & Jeffrey G. Duckett2 & Katie J. Field4 & Martin I. Bidartondo1,3 Received: 29 May 2019 /Accepted: 13 September 2019 /Published online: 13 November 2019 # The Author(s) 2019 Abstract Like the majority of land plants, liverworts regularly form intimate symbioses with arbuscular mycorrhizal fungi (Glomeromycotina).