DOCSLIB.ORG

Invasive Alien Plants in South Africa

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Invasive Alien Plants in South Africa Invasive Alien Plants in South Africa Lesley Henderson KEY TO SYMBOLS LEGAL STATUS PE Prince Edward Isles only NEMBA category 1a: Requiring immediate compulsory control NEMBA category1b: throughout South Africa/in part of South Africa Must be controlled or eradicated where possible NEMBA category 2: throughout South Africa/in part of South Africa Allowed only in specified areas under controlled conditions NEMBA category 3: throughout South Africa/in part of South Africa Must be controlled within riparian areas; no further cultivation allowed INVASIVE STATUS T; Pt Transformer; Potential transformer S; E; R Special effect weed; Emerging weed; Ruderal and agrestal BIOLOGICAL CONTROL Effective biological control agents available; control complete Biological control agents available; control substantial Biological conrol agents available; control negligible Biological control agents available; control not determined or under evaluation Degree of biological control after Klein (2011) and updated 2018 Complete: no other control measures are needed to reduce the weed to acceptable levels, at least in areas where the agents have been established Substantial: other methods are needed to reduce the weed to acceptable levels, but less effort is required (e.g. less frequent herbicide application or less herbicide needed per unit area) Negligible: in spite of damage inflicted by the agents, control of the weed remains entirely reliant on the implementation of the other control measures Not determined: either the release of the agents has been too recent for the meaningful evaluation, or the programme has not been evaluated POTENTIAL THREAT OR IMPACT Biodiversity Water resources Fire Soil erosion Agriculture Forestry Human and animal health Tourism, recreation PLANT PROTECTION RESEARCH INSTITUTE HANDBOOK NO 21 INVASIVE ALIEN PLANTS IN SOUTH AFRICA by Lesley Henderson A complete guide to restricted invasive alien plants in South Africa, including another 40 taxa invasive in that region 1 INVASIVE ALIEN PLANTS IN SOUTH AFRICA by Lesley Henderson Copyright © 2020 Agricultural Research Council. All rights reserved. Permission is granted to Department of Environment, Forestry and Fisheries of South Africa to reproduce this publication or any part thereof for non-profit purposes and with full acknowledgement to the author and publisher. ISBN: 978-0-620-86146-5 Artists: Major Contributors Marietjie Steyn Wilma Roux Sandie Burrows Gill Condy Rita Weber Photographers: Major Contributors Lesley Henderson Geoff Nichols Design and layout: Mac Image Printing and binding: Novus Print Sponsor: Department of Environment, Forestry and Fisheries of South Africa: Natural Resources Management Programmes (DEFF: NRMP) 2 CONTENTS FOREWORD ............................................................................................................... 4 INTRODUCTION ......................................................................................................... 5 ACKNOWLEDGEMENTS ........................................................................................... 7 IMPACTS OF INVASIVE SPECIES ............................................................................... 9 INVASIVE STATUS .................................................................................................... 14 CONTROL METHODS .............................................................................................. 16 GUIDE TO IDENTIFICATION OF THE SPECIES ....................................................... 18 Example page ........................................................................................................... 18 Symbols used ............................................................................................................ 19 Grasses, Reeds and Grass-like Plants ........................................................................ 20 Aquatic and Wetland Plants ...................................................................................... 36 Marine Plants ............................................................................................................. 54 Herbs ......................................................................................................................... 56 Climbers and Scramblers ......................................................................................... 110 Trees and Shrubs: succulent .................................................................................... 134 Trees and Shrubs: woody ........................................................................................ 166 RESTRICTED SPECIES AND NEM:BA ..................................................................... 306 NATIONAL LISTS OF INVASIVE PLANT SPECIES ................................................... 310 BIOLOGICAL CONTROL AGENTS ......................................................................... 343 OTHER SOURCES OF INFORMATION .................................................................. 354 GLOSSARY ............................................................................................................. 358 INDEX OF BOTANICAL AND COMMON NAMES ................................................. 363 ABOUT THE AUTHOR ............................................................................................ 382 MAP OF SOUTH AFRICA AND PLACES ................................................................. 383 QUICK GUIDE (INSIDE BACK COVER) ............................................................... 384 3 FOREWORD The impacts of invasive plants cannot be over-emphasised: • They are the single biggest long-term threat to our water security. If our catchments are invaded by pines, wattles, hakea and other thirsty invasives, water security will collapse. • South Africa is the third-most species-rich country in the world. Invasive species are the single biggest threat to our exceptional biological diversity. • They exacerbate wild fires, many invasive species burning at ten-fold the intensity of the species that they displace. • They exacerbate erosion, siltation of rivers and dams, sedimentation and poor water quality, mudslides and flooding. For these reasons, South Africa has among the world’s most comprehensive programmes to address the problems of invasive species: • It is led by the Working for Water programme (now in its 25th year), through which about 50,000 people are employed to control invasive species. • South Africa is at the forefront of biological control research and application, finding the natural enemies of invasive plants, and ensuring that it is safe to release them in our country. • The Biosecurity Unit is strengthening our capacity to prevent the introduction of potentially invasive species; tackling emerging invasive species (before they become widespread), and enforcing our legislation on alien and invasive species. • The Value-Added Industries programme is utilizing invasive biomass for building materials, furniture and other products, freeing up budget to address priorities such as biological control, clearing of high-altitude areas and early detection of emerging species. As important as is this work, so much more needs to be done. South Africa will need the active engagement of its citizens, if it is to contain the threat of invasive species. It is each of us who must be aware of the risks of moving species to areas in which they do not occur, and to manage invasive species that are under our control. With so many invasive plant species already in our country, and a high risk of further invasions (including species that will become invasive as the climate changes), a first step is to be able to identify them. Lesley Henderson’s comprehensive revision of her seminal “Alien Weeds and Invasive Plants”, published in 2001, is greatly welcomed. This beautifully illustrated book, with its apt descriptions, is the product of decades of careful research and field work. It will also be published on-line, in an effort to reach as many key people as possible. It needs to be widely available, for we are all part of the problem – and part of the solution. May this book inspire more and more South Africans to take the necessary steps to contain invasive plants. We all owe Lesley Henderson a great deal, for her meticulous and dedicated work. Dr Guy Preston Deputy Director-General Department of Environment, Forestry and Fisheries 4 INTRODUCTION The main objective in producing this book is to enable members of the public and law enforcement officers to identify therestricted invasive alien plant species in South Africa covered by the “NATIONAL ENVIRONMENTAL MANAGEMENT: BIODIVERSITY ACT (NEM:BA) 2004” (Act No. 10 of Republic of South Africa 2004). The book includes a further 40 taxa invasive in this region, some of which have been proposed for listing in the regulations but require further assessment. The book also represents the culmination of the second phase of a mapping project, the Southern African Plant Invaders Atlas (SAPIA), which was started in 2006 and ended in 2016. The plants described in this book are alien or non-native species. All have been introduced into South Africa, either intentionally or unintentionally and with the exception of a few, have either escaped cultivation or become naturalised i.e. are capable of reproducing and spreading without the direct assistance of people. Some species are largely confined to places of severe human disturbance and are classified as ruderal weeds (of waste places) and agrestal weeds (of cultivated lands).
Load more

Recommended publications
  • 1 1 DNA Barcodes Reveal Deeply Neglected Diversity and Numerous
    Page 1 of 57 1 DNA barcodes reveal deeply neglected diversity and numerous invasions of micromoths in 2 Madagascar 3 4 5 Carlos Lopez-Vaamonde1,2, Lucas Sire2, Bruno Rasmussen2, Rodolphe Rougerie3, 6 Christian Wieser4, Allaoui Ahamadi Allaoui 5, Joël Minet3, Jeremy R. deWaard6, Thibaud 7 Decaëns7, David C. Lees8 8 9 1 INRA, UR633, Zoologie Forestière, F- 45075 Orléans, France. 10 2 Institut de Recherche sur la Biologie de l’Insecte, UMR 7261 CNRS Université de Tours, UFR 11 Sciences et Techniques, Tours, France. 12 3Institut de Systématique Evolution Biodiversité (ISYEB), Muséum national d'Histoire naturelle, 13 CNRS, Sorbonne Université, EPHE, 57 rue Cuvier, CP 50, 75005 Paris, France. 14 4 Landesmuseum für Kärnten, Abteilung Zoologie, Museumgasse 2, 9020 Klagenfurt, Austria 15 5 Department of Entomology, University of Antananarivo, Antananarivo 101, Madagascar 16 6 Centre for Biodiversity Genomics, University of Guelph, 50 Stone Road E., Guelph, ON 17 N1G2W1, Canada 18 7Centre d'Ecologie Fonctionnelle et Evolutive (CEFE UMR 5175, CNRS–Université de Genome Downloaded from www.nrcresearchpress.com by UNIV GUELPH on 10/03/18 19 Montpellier–Université Paul-Valéry Montpellier–EPHE), 1919 Route de Mende, F-34293 20 Montpellier, France. 21 8Department of Life Sciences, Natural History Museum, Cromwell Road, SW7 5BD, UK. 22 23 24 Email for correspondence: [email protected] For personal use only. This Just-IN manuscript is the accepted prior to copy editing and page composition. It may differ from final official version of record. 1 Page 2 of 57 25 26 Abstract 27 Madagascar is a prime evolutionary hotspot globally, but its unique biodiversity is under threat, 28 essentially from anthropogenic disturbance.
    [Show full text]
  • DNA Barcodes Reveal Deeply Neglected Diversity and Numerous Invasions of Micromoths in Madagascar
    Genome DNA barcodes reveal deeply neglected diversity and numerous invasions of micromoths in Madagascar Journal: Genome Manuscript ID gen-2018-0065.R2 Manuscript Type: Article Date Submitted by the 17-Jul-2018 Author: Complete List of Authors: Lopez-Vaamonde, Carlos; Institut National de la Recherche Agronomique (INRA), ; Institut de Recherche sur la Biologie de l’Insecte (IRBI), Sire, Lucas; Institut de Recherche sur la Biologie de l’Insecte Rasmussen,Draft Bruno; Institut de Recherche sur la Biologie de l’Insecte Rougerie, Rodolphe; Institut Systématique, Evolution, Biodiversité (ISYEB), Wieser, Christian; Landesmuseum für Kärnten Ahamadi, Allaoui; University of Antananarivo, Department Entomology Minet, Joël; Institut de Systematique Evolution Biodiversite deWaard, Jeremy; Biodiversity Institute of Ontario, University of Guelph, Decaëns, Thibaud; Centre d'Ecologie Fonctionnelle et Evolutive (CEFE UMR 5175, CNRS–Université de Montpellier–Université Paul-Valéry Montpellier–EPHE), , CEFE UMR 5175 CNRS Lees, David; Natural History Museum London Keyword: Africa, invasive alien species, Lepidoptera, Malaise trap, plant pests Is the invited manuscript for consideration in a Special 7th International Barcode of Life Issue? : https://mc06.manuscriptcentral.com/genome-pubs Page 1 of 57 Genome 1 DNA barcodes reveal deeply neglected diversity and numerous invasions of micromoths in 2 Madagascar 3 4 5 Carlos Lopez-Vaamonde1,2, Lucas Sire2, Bruno Rasmussen2, Rodolphe Rougerie3, 6 Christian Wieser4, Allaoui Ahamadi Allaoui 5, Joël Minet3, Jeremy R. deWaard6, Thibaud 7 Decaëns7, David C. Lees8 8 9 1 INRA, UR633, Zoologie Forestière, F- 45075 Orléans, France. 10 2 Institut de Recherche sur la Biologie de l’Insecte, UMR 7261 CNRS Université de Tours, UFR 11 Sciences et Techniques, Tours, France.
    [Show full text]
  • Natural Heritage Program List of Rare Plant Species of North Carolina 2016
    Natural Heritage Program List of Rare Plant Species of North Carolina 2016 Revised February 24, 2017 Compiled by Laura Gadd Robinson, Botanist John T. Finnegan, Information Systems Manager North Carolina Natural Heritage Program N.C. Department of Natural and Cultural Resources Raleigh, NC 27699-1651 www.ncnhp.org C ur Alleghany rit Ashe Northampton Gates C uc Surry am k Stokes P d Rockingham Caswell Person Vance Warren a e P s n Hertford e qu Chowan r Granville q ot ui a Mountains Watauga Halifax m nk an Wilkes Yadkin s Mitchell Avery Forsyth Orange Guilford Franklin Bertie Alamance Durham Nash Yancey Alexander Madison Caldwell Davie Edgecombe Washington Tyrrell Iredell Martin Dare Burke Davidson Wake McDowell Randolph Chatham Wilson Buncombe Catawba Rowan Beaufort Haywood Pitt Swain Hyde Lee Lincoln Greene Rutherford Johnston Graham Henderson Jackson Cabarrus Montgomery Harnett Cleveland Wayne Polk Gaston Stanly Cherokee Macon Transylvania Lenoir Mecklenburg Moore Clay Pamlico Hoke Union d Cumberland Jones Anson on Sampson hm Duplin ic Craven Piedmont R nd tla Onslow Carteret co S Robeson Bladen Pender Sandhills Columbus New Hanover Tidewater Coastal Plain Brunswick THE COUNTIES AND PHYSIOGRAPHIC PROVINCES OF NORTH CAROLINA Natural Heritage Program List of Rare Plant Species of North Carolina 2016 Compiled by Laura Gadd Robinson, Botanist John T. Finnegan, Information Systems Manager North Carolina Natural Heritage Program N.C. Department of Natural and Cultural Resources Raleigh, NC 27699-1651 www.ncnhp.org This list is dynamic and is revised frequently as new data become available. New species are added to the list, and others are dropped from the list as appropriate.
    [Show full text]
  • RECORDS of the HAWAII BIOLOGICAL SURVEY for 1995 Part 2: Notes1
    RECORDS OF THE HAWAII BIOLOGICAL SURVEY FOR 1995 Part 2: Notes1 This is the second of two parts to the Records of the Hawaii Biological Survey for 1995 and contains the notes on Hawaiian species of plants and animals including new state and island records, range extensions, and other information. Larger, more compre- hensive treatments and papers describing new taxa are treated in the first part of this Records [Bishop Museum Occasional Papers 45]. New Hawaiian Pest Plant Records for 1995 PATRICK CONANT (Hawaii Dept. of Agriculture, Plant Pest Control Branch, 1428 S King St, Honolulu, HI 96814) Fabaceae Ulex europaeus L. New island record On 6 October 1995, Hawaii Department of Land and Natural Resources, Division of Forestry and Wildlife employee C. Joao submitted an unusual plant he found while work- ing in the Molokai Forest Reserve. The plant was identified as U. europaeus and con- firmed by a Hawaii Department of Agriculture (HDOA) nox-A survey of the site on 9 October revealed an infestation of ca. 19 m2 at about 457 m elevation in the Kamiloa Distr., ca. 6.2 km above Kamehameha Highway. Distribution in Wagner et al. (1990, Manual of the flowering plants of Hawai‘i, p. 716) listed as Maui and Hawaii. Material examined: MOLOKAI: Molokai Forest Reserve, 4 Dec 1995, Guy Nagai s.n. (BISH). Melastomataceae Miconia calvescens DC. New island record, range extensions On 11 October, a student submitted a leaf specimen from the Wailua Houselots area on Kauai to PPC technician A. Bell, who had the specimen confirmed by David Lorence of the National Tropical Botanical Garden as being M.
    [Show full text]
  • Traits-Based and Perception Approaches for Management of Invasive Exotic Species from Tropical Botanic Gardens
    TRAITS-BASED AND PERCEPTION APPROACHES FOR MANAGEMENT OF INVASIVE EXOTIC SPECIES FROM TROPICAL BOTANIC GARDENS DECKY INDRAWAN JUNAEDI Submitted in the total fulfillment of the requirements of the degree of Doctor of Philosophy June 2018 School of Biosciences University of Melbourne 1 Abstract ABSTRACT The factors driving plant invasion are key questions in invasion ecology. Traits also can act as indicators of plant invasion processes. If traits are proven to be a significant proxy for plant invasiveness, then invasiveness of exotic species may be efficiently predicted by measuring traits. Botanic gardens have consistently supported ex-situ plant conservation, research, and environmental education. However, botanic gardens can also be pathways of exotic invasive species introduction. Botanic gardens should become a strategic stakeholder for exotic invasive plant species management. For exotic invasive species management, we cannot solely rely on ecological approaches. Social perception is an important component of invasive species management. Social perception may become either a problem or a solution for invasive species management. These perceptions should be clarified among relevant stakeholders to minimize conflicts of interest among relevant stakeholders of invasive species management. This study focuses on invasive plant species in tropical environments and the aim of this study is to answer the following questions: (1) Focusing on the relationship between exotic species abundance and traits in the tropical ecosystem, what traits
    [Show full text]
  • Download Document
    African countries and neighbouring islands covered by the Synopsis. S T R E L I T Z I A 23 Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands by J.P. Roux Pretoria 2009 S T R E L I T Z I A This series has replaced Memoirs of the Botanical Survey of South Africa and Annals of the Kirstenbosch Botanic Gardens which SANBI inherited from its predecessor organisations. The plant genus Strelitzia occurs naturally in the eastern parts of southern Africa. It comprises three arborescent species, known as wild bananas, and two acaulescent species, known as crane flowers or bird-of-paradise flowers. The logo of the South African National Biodiversity Institute is based on the striking inflorescence of Strelitzia reginae, a native of the Eastern Cape and KwaZulu-Natal that has become a garden favourite worldwide. It sym- bolises the commitment of the Institute to champion the exploration, conservation, sustain- able use, appreciation and enjoyment of South Africa’s exceptionally rich biodiversity for all people. J.P. Roux South African National Biodiversity Institute, Compton Herbarium, Cape Town SCIENTIFIC EDITOR: Gerrit Germishuizen TECHNICAL EDITOR: Emsie du Plessis DESIGN & LAYOUT: Elizma Fouché COVER DESIGN: Elizma Fouché, incorporating Blechnum palmiforme on Gough Island PHOTOGRAPHS J.P. Roux Citing this publication ROUX, J.P. 2009. Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23. South African National Biodiversity Institute, Pretoria. ISBN: 978-1-919976-48-8 © Published by: South African National Biodiversity Institute. Obtainable from: SANBI Bookshop, Private Bag X101, Pretoria, 0001 South Africa.
    [Show full text]
  • State of New York City's Plants 2018
    STATE OF NEW YORK CITY’S PLANTS 2018 Daniel Atha & Brian Boom © 2018 The New York Botanical Garden All rights reserved ISBN 978-0-89327-955-4 Center for Conservation Strategy The New York Botanical Garden 2900 Southern Boulevard Bronx, NY 10458 All photos NYBG staff Citation: Atha, D. and B. Boom. 2018. State of New York City’s Plants 2018. Center for Conservation Strategy. The New York Botanical Garden, Bronx, NY. 132 pp. STATE OF NEW YORK CITY’S PLANTS 2018 4 EXECUTIVE SUMMARY 6 INTRODUCTION 10 DOCUMENTING THE CITY’S PLANTS 10 The Flora of New York City 11 Rare Species 14 Focus on Specific Area 16 Botanical Spectacle: Summer Snow 18 CITIZEN SCIENCE 20 THREATS TO THE CITY’S PLANTS 24 NEW YORK STATE PROHIBITED AND REGULATED INVASIVE SPECIES FOUND IN NEW YORK CITY 26 LOOKING AHEAD 27 CONTRIBUTORS AND ACKNOWLEGMENTS 30 LITERATURE CITED 31 APPENDIX Checklist of the Spontaneous Vascular Plants of New York City 32 Ferns and Fern Allies 35 Gymnosperms 36 Nymphaeales and Magnoliids 37 Monocots 67 Dicots 3 EXECUTIVE SUMMARY This report, State of New York City’s Plants 2018, is the first rankings of rare, threatened, endangered, and extinct species of what is envisioned by the Center for Conservation Strategy known from New York City, and based on this compilation of The New York Botanical Garden as annual updates thirteen percent of the City’s flora is imperiled or extinct in New summarizing the status of the spontaneous plant species of the York City. five boroughs of New York City. This year’s report deals with the City’s vascular plants (ferns and fern allies, gymnosperms, We have begun the process of assessing conservation status and flowering plants), but in the future it is planned to phase in at the local level for all species.
    [Show full text]
  • The Spore Exchange “The Life of the Exchange Depends on Your Spore Contributions.” Neill Hall, Spore Exchange Curator, Serving from 1962 to 1988
    Volume 39 Number 4 & 5 Sept.-Dec. 2012 Editors: Joan Nester-Hudson and David Schwartz The Spore Exchange “The life of the Exchange depends on your spore contributions.” Neill Hall, Spore Exchange curator, serving from 1962 to 1988. One of the goals of the American Fern Society is to promote the cultivation of ferns. The AFS Spore Exchange makes hundreds of ferns available that would otherwise be unobtainable for most members. Members can share spores from rare or endangered ferns thereby safeguarding the species so that our grandchildren may also enjoy these beautiful plants. The American Fern Society would like to thank Denia Mandt for her many years of service and dedication to the Spore Exchange. Insporations by Brian Aikins, Spore Exchange Curator This has been a year of transition for the spore ex- us. My initial efforts as curator have been to streamline change. In May I accepted the role of Spore Exchange the entire system. It is my hope that the changes I am Curator and shortly thereafter received two large boxes making will enhance the spore exchange for all its par- from Denia Mandt, the outgoing curator, who had aptly ticipants. served since 2004. Prior to sending the boxes she pains- The first step was setting up a database for species in- takingly purged outdated material from the spore bank formation, current inventory, and transaction history. I and prepared a complete inventory. The species count decided to modify a fern database I started when I joined was about 300, each contained in a regular-sized enve- the AFS in 1987.
    [Show full text]
  • Henderson, L. (2007). Invasive, Naturalized and Casual Alien Plants in Southern Africa
    Bothalia 37,2: 215–248 (2007) Invasive, naturalized and casual alien plants in southern Africa: a sum- mary based on the Southern African Plant Invaders Atlas (SAPIA) L. HENDERSON* Keywords: biomes, casual alien plants, invasive plants, Lesotho, naturalized plants, roadside surveys, SAPIA mapping project, South Africa, Swaziland ABSTRACT The primary objective of this publication is to provide an overview of the species identity, invasion status, geographical extent, and abundance of alien plants in South Africa, Swaziland and Lesotho, based on fi eld records from 1979 to the end of 2000. The dataset is all the species records for the study area in the Southern African Plant Invaders Atlas (SAPIA) database during this time period. A total of 548 naturalized and casual alien plant species were catalogued and invasion was recorded almost throughout the study area. Most invasion, in terms of both species numbers and total species abundance, was recorded along the southern, southwestern and eastern coastal belts and in the adjacent interior. This area includes the whole of the Fynbos and Forest Biomes, and the moister eastern parts of the Grassland and Savanna Biomes. This study reinforces previous studies that the Fynbos Biome is the most extensively invaded vegetation type in South Africa but it also shows that parts of Savanna and Grassland are as heavily invaded as parts of the Fynbos. The Fabaceae is prominent in all biomes and Acacia with 17 listed species, accounts for a very large proportion of all invasion. Acacia mearnsii was by far the most prominent invasive species in the study area, followed by A.
    [Show full text]
  • NOTES Watsonia 25 (2005) NORTH WALES SPECIES of RUBUS L
    Watsonia 25: 289–298 (2005) NOTES Watsonia 25 (2005) 289 Notes NORTH WALES SPECIES OF RUBUS L. (ROSACEAE) IN THE ISLE OF WIGHT In 1982 two sizeable populations of Rubus effrenatus Newton, a species up till then (and still) otherwise known only in north-west Wales, v.cc. 46–49, were discovered in the Isle of Wight, v.c. 10, at a distance of 11 km from each other. One population is near the Island’s southernmost tip, mainly among bracken along a crescent of gravel overlying the chalk on the north face of Head Down but with an outlying patch in a deep ‘green lane’ about 1·4 km to the north-west. The other site is towards the Island’s south-east corner, along a much-frequented public footpath forming the north boundary of Sandown Golf Course, a relic fragment of a once-extensive tract of partly- wooded acid ground that constituted Blackpan and Lake Commons. The species is unrepresented in Rubus collections made in these two localities by 19th century specialists in the genus, and that negative evidence, taken together with a subjective impression that both populations have expanded slightly in the years since their discovery, could be interpreted as indicating a relatively recent arrival in each case (Allen 2003). Though the two may have had independent origins, it is equally possible that one population has been derived from the other – in which case that on Head Down seems the more likely to be the parent colony. In 2002–4 two successive finds of another Rubus species provided a near-duplicate of this very unexpected national distribution pattern.
    [Show full text]
  • Efficient Regeneration of Hedychium Coronarium Through Protocorm-Like Bodies
    agronomy Article Efficient Regeneration of Hedychium coronarium through Protocorm-Like Bodies Xiu Hu 1, Jiachuan Tan 1, Jianjun Chen 2,* , Yongquan Li 1,* and Jiaqi Huang 1 1 Department of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; [email protected] (X.H.); [email protected] (J.T.); [email protected] (J.H.) 2 Department of Environmental Horticulture and Mid-Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Apopka, FL 32703, USA * Correspondence: jjchen@ufl.edu (J.C.); [email protected] (Y.L.) Received: 1 July 2020; Accepted: 22 July 2020; Published: 24 July 2020 Abstract: Hedychium coronarium J. Koenig is a multipurpose plant with significant economic value, but it has been overexploited and listed as a vulnerable, near threatened or endangered species. In vitro culture methods have been used for propagating disease-free propagules for its conservation and production. However, explant contamination has been a bottleneck in in vitro propagation due to the use of rhizomes as the explant source. Plants in the family Zingiberaceae have pseudostems that support inflorescences, while rhizomes are considered true stems. The present study, for the first time, reported that the pseudostem bears nodes and vegetative buds and could actually be true stems. The evaluation of different sources of explants showed that mature node explants derived from the stem were the most suitable ones for in vitro culture because of the lowest contamination and the highest bud break rates. Culture of mature node explants on MS medium supplemented with 13.32, 17.76, and 22.20 µM 6-benzylaminopurine (BA), each in combination with 9.08 µM thidiazurin (TDZ) and 0.05 µM α-naphthaleneacetic acid (NAA) induced the conversion of buds to micro-rhizomes in six weeks.
    [Show full text]
  • Chapter 6 ENUMERATION
    Chapter 6 ENUMERATION . ENUMERATION The spermatophytic plants with their accepted names as per The Plant List [http://www.theplantlist.org/ ], through proper taxonomic treatments of recorded species and infra-specific taxa, collected from Gorumara National Park has been arranged in compliance with the presently accepted APG-III (Chase & Reveal, 2009) system of classification. Further, for better convenience the presentation of each species in the enumeration the genera and species under the families are arranged in alphabetical order. In case of Gymnosperms, four families with their genera and species also arranged in alphabetical order. The following sequence of enumeration is taken into consideration while enumerating each identified plants. (a) Accepted name, (b) Basionym if any, (c) Synonyms if any, (d) Homonym if any, (e) Vernacular name if any, (f) Description, (g) Flowering and fruiting periods, (h) Specimen cited, (i) Local distribution, and (j) General distribution. Each individual taxon is being treated here with the protologue at first along with the author citation and then referring the available important references for overall and/or adjacent floras and taxonomic treatments. Mentioned below is the list of important books, selected scientific journals, papers, newsletters and periodicals those have been referred during the citation of references. Chronicles of literature of reference: Names of the important books referred: Beng. Pl. : Bengal Plants En. Fl .Pl. Nepal : An Enumeration of the Flowering Plants of Nepal Fasc.Fl.India : Fascicles of Flora of India Fl.Brit.India : The Flora of British India Fl.Bhutan : Flora of Bhutan Fl.E.Him. : Flora of Eastern Himalaya Fl.India : Flora of India Fl Indi.
    [Show full text]