Inflorescence Structure in Laurales—Stable and Flexible Patterns
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"National List of Vascular Plant Species That Occur in Wetlands: 1996 National Summary."
Intro 1996 National List of Vascular Plant Species That Occur in Wetlands The Fish and Wildlife Service has prepared a National List of Vascular Plant Species That Occur in Wetlands: 1996 National Summary (1996 National List). The 1996 National List is a draft revision of the National List of Plant Species That Occur in Wetlands: 1988 National Summary (Reed 1988) (1988 National List). The 1996 National List is provided to encourage additional public review and comments on the draft regional wetland indicator assignments. The 1996 National List reflects a significant amount of new information that has become available since 1988 on the wetland affinity of vascular plants. This new information has resulted from the extensive use of the 1988 National List in the field by individuals involved in wetland and other resource inventories, wetland identification and delineation, and wetland research. Interim Regional Interagency Review Panel (Regional Panel) changes in indicator status as well as additions and deletions to the 1988 National List were documented in Regional supplements. The National List was originally developed as an appendix to the Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al.1979) to aid in the consistent application of this classification system for wetlands in the field.. The 1996 National List also was developed to aid in determining the presence of hydrophytic vegetation in the Clean Water Act Section 404 wetland regulatory program and in the implementation of the swampbuster provisions of the Food Security Act. While not required by law or regulation, the Fish and Wildlife Service is making the 1996 National List available for review and comment. -
Evolutionary Comparisons of the Chloroplast Genome in Lauraceae and Insights Into Loss Events in the Magnoliids
GBE Evolutionary Comparisons of the Chloroplast Genome in Lauraceae and Insights into Loss Events in the Magnoliids Yu Song1,2,†,Wen-BinYu1,2,†, Yunhong Tan1,2,†, Bing Liu3,XinYao1,JianjunJin4, Michael Padmanaba1, Jun-Bo Yang4,*, and Richard T. Corlett1,2,* 1Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China 2Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw, Myanmar 3State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, China 4Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China *Corresponding authors: E-mails: [email protected]; [email protected]. †These authors contributed equally to this work. Accepted: September 1, 2017 Data deposition: This project has been deposited at GenBank of NCBI under the accession number MF939337 to MF939351. Abstract Available plastomes of the Lauraceae show similar structure and varied size, but there has been no systematic comparison across the family. In order to understand the variation in plastome size and structure in the Lauraceae and related families of magnoliids, we here compare 47 plastomes, 15 newly sequenced, from 27 representative genera. We reveal that the two shortest plastomes are in the parasitic Lauraceae genus Cassytha, with lengths of 114,623 (C. filiformis) and 114,963 bp (C. capillaris), and that they have lost NADH dehydrogenase (ndh) genes in the large single-copy region and one entire copy of the inverted repeat (IR) region. The plastomes of the core Lauraceae group, with lengths from 150,749 bp (Nectandra angustifolia) to 152,739 bp (Actinodaphne trichocarpa), have lost trnI-CAU, rpl23, rpl2,afragmentofycf2, and their intergenic regions in IRb region, whereas the plastomes of the basal Lauraceae group, with lengths from 157,577 bp (Eusideroxylon zwageri) to 158,530 bp (Beilschmiedia tungfangen- sis), have lost rpl2 in IRa region. -
Ascarina Lucida Var. Lanceolata
Ascarina lucida var. lanceolata COMMON NAME Kermadec Islands Hutu SYNONYMS Ascarina lanceolata Hook.f. FAMILY Chloranthaceae AUTHORITY Ascarina lucida var. lanceolata (Hook.f.) Allan FLORA CATEGORY Vascular – Native ENDEMIC TAXON Yes ENDEMIC GENUS No Hutu. Photographer: Bec Stanley ENDEMIC FAMILY No STRUCTURAL CLASS Trees & Shrubs - Dicotyledons NVS CODE ASCLVL CHROMOSOME NUMBER 2n = 26 CURRENT CONSERVATION STATUS Hutu. Photographer: Bec Stanley 2012 | At Risk – Naturally Uncommon | Qualifiers: IE, OL PREVIOUS CONSERVATION STATUSES 2009 | At Risk – Naturally Uncommon | Qualifiers: IE, OL 2004 | Not Threatened BRIEF DESCRIPTION Small bushy tree of upland Kermadec Islands. Leaves narrow and tapering to a narrow tip and with coarse black- tipped teeth on margins. Flowers in clusters of spikes. Fruit small, white. DISTRIBUTION Endemic. Kermadec Islands, Raoul Island only. HABITAT One of the characteristic trees of the wet forests of Raoul Island which are mostly found above 245m. However, in the ravines this tree may extend down to almost sea level. In the wet forest it is mostly a subcanopy tree which co- associates with Coprosma acutifolia, Pseudopanax kermadecensis, Melicytus aff. ramiflorus and on occasion Boehmeria australis subsp. dealbata. Occasionally, such as on the ridge lines and crater rim it may form part of the forest canopy. FEATURES Glabrous gynodioecious tree up to 15 m tall. Trunk up to 500 mm diameter. Bark greyish-white. Branchlets slender, striate, initially pale green maturing dark green to emerald green. Interpetiolar stipules conspicuous, comprising 3 1.2-2.6 mm long pale pink to red, filaments; these connate near base, behind which are 3-6 smaller hyaline filaments. Petioles up to 15-20 mm long, lamina subcoriacous, somewhat fleshy, 50-100 × 10-30 mm, green, emerald green to dark green above, paler beneath, serrations weakly pigmented, pink to pale maroon often fading into pale pink spotting, narrowly lanceolate, lanceolate, lanceolate- oblong to narrowly elliptic, acuminate to acute. -
Native Trees of Mexico: Diversity, Distribution, Uses and Conservation
Native trees of Mexico: diversity, distribution, uses and conservation Oswaldo Tellez1,*, Efisio Mattana2,*, Mauricio Diazgranados2, Nicola Kühn2, Elena Castillo-Lorenzo2, Rafael Lira1, Leobardo Montes-Leyva1, Isela Rodriguez1, Cesar Mateo Flores Ortiz1, Michael Way2, Patricia Dávila1 and Tiziana Ulian2 1 Facultad de Estudios Superiores Iztacala, Av. De los Barrios 1, Los Reyes Iztacala Tlalnepantla, Universidad Nacional Autónoma de México, Estado de México, Mexico 2 Wellcome Trust Millennium Building, RH17 6TN, Royal Botanic Gardens, Kew, Ardingly, West Sussex, United Kingdom * These authors contributed equally to this work. ABSTRACT Background. Mexico is one of the most floristically rich countries in the world. Despite significant contributions made on the understanding of its unique flora, the knowledge on its diversity, geographic distribution and human uses, is still largely fragmented. Unfortunately, deforestation is heavily impacting this country and native tree species are under threat. The loss of trees has a direct impact on vital ecosystem services, affecting the natural capital of Mexico and people's livelihoods. Given the importance of trees in Mexico for many aspects of human well-being, it is critical to have a more complete understanding of their diversity, distribution, traditional uses and conservation status. We aimed to produce the most comprehensive database and catalogue on native trees of Mexico by filling those gaps, to support their in situ and ex situ conservation, promote their sustainable use, and inform reforestation and livelihoods programmes. Methods. A database with all the tree species reported for Mexico was prepared by compiling information from herbaria and reviewing the available floras. Species names were reconciled and various specialised sources were used to extract additional species information, i.e. -
Heterodichogamy.Pdf
Research Update TRENDS in Ecology & Evolution Vol.16 No.11 November 2001 595 How common is heterodichogamy? Susanne S. Renner The sexual systems of plants usually Heterodichogamy differs from normal (Zingiberales). These figures probably depend on the exact spatial distribution of dichogamy, the temporal separation of underestimate the frequency of the gamete-producing structures. Less well male and female function in flowers, in heterodichogamy. First, the phenomenon known is how the exact timing of male and that it involves two genetic morphs that is discovered only if flower behavior is female function might influence plant occur at a 1:1 ratio. The phenomenon was studied in several individuals and in mating. New papers by Li et al. on a group discovered in walnuts and hazelnuts5,6 natural populations. Differential of tropical gingers describe differential (the latter ending a series of Letters to movements and maturation of petals, maturing of male and female structures, the Editor about hazel flowering that styles, stigmas and stamens become such that half the individuals of a began in Nature in 1870), but has gone invisible in dried herbarium material, population are in the female stage when almost unnoticed7. Indeed, its recent and planted populations deriving from the other half is in the male stage. This discovery in Alpinia was greeted as a vegetatively propagated material no new case of heterodichogamy is unique new mechanism, differing ‘from other longer reflect natural morph ratios. The in involving reciprocal movement of the passive outbreeding devices, such as discovery of heterodichogamy thus styles in the two temporal morphs. dichogamy…and heterostyly in that it depends on field observations. -
Plant Life of Western Australia
INTRODUCTION The characteristic features of the vegetation of Australia I. General Physiography At present the animals and plants of Australia are isolated from the rest of the world, except by way of the Torres Straits to New Guinea and southeast Asia. Even here adverse climatic conditions restrict or make it impossible for migration. Over a long period this isolation has meant that even what was common to the floras of the southern Asiatic Archipelago and Australia has become restricted to small areas. This resulted in an ever increasing divergence. As a consequence, Australia is a true island continent, with its own peculiar flora and fauna. As in southern Africa, Australia is largely an extensive plateau, although at a lower elevation. As in Africa too, the plateau increases gradually in height towards the east, culminating in a high ridge from which the land then drops steeply to a narrow coastal plain crossed by short rivers. On the west coast the plateau is only 00-00 m in height but there is usually an abrupt descent to the narrow coastal region. The plateau drops towards the center, and the major rivers flow into this depression. Fed from the high eastern margin of the plateau, these rivers run through low rainfall areas to the sea. While the tropical northern region is characterized by a wet summer and dry win- ter, the actual amount of rain is determined by additional factors. On the mountainous east coast the rainfall is high, while it diminishes with surprising rapidity towards the interior. Thus in New South Wales, the yearly rainfall at the edge of the plateau and the adjacent coast often reaches over 100 cm. -
Coexistence of Confamilial, Folivorous Indriids, Propithecus Diadema And
Washington University in St. Louis Washington University Open Scholarship Arts & Sciences Electronic Theses and Dissertations Arts & Sciences Spring 5-15-2017 Coexistence of Confamilial, Folivorous Indriids, Propithecus diadema and Indri indri, at Betampona Strict Nature Reserve, Madagascar Lana Kerker Oliver Washington University in St. Louis Follow this and additional works at: https://openscholarship.wustl.edu/art_sci_etds Part of the Biodiversity Commons, Biological and Physical Anthropology Commons, Natural Resources and Conservation Commons, and the Natural Resources Management and Policy Commons Recommended Citation Oliver, Lana Kerker, "Coexistence of Confamilial, Folivorous Indriids, Propithecus diadema and Indri indri, at Betampona Strict Nature Reserve, Madagascar" (2017). Arts & Sciences Electronic Theses and Dissertations. 1134. https://openscholarship.wustl.edu/art_sci_etds/1134 This Dissertation is brought to you for free and open access by the Arts & Sciences at Washington University Open Scholarship. It has been accepted for inclusion in Arts & Sciences Electronic Theses and Dissertations by an authorized administrator of Washington University Open Scholarship. For more information, please contact [email protected]. WASHINGTON UNIVERSITY IN ST. LOUIS Department of Anthropology Dissertation Examination Committee Crickette Sanz, Chair Kari Allen Benjamin Z. Freed Jane Phillips-Conroy David Strait Mrinalini Watsa Coexistence of Confamilial, Folivorous Indriids, Propithecus diadema and Indri indri, at Betampona Strict -
Phytochemical, Elemental and Biotechnological Study of Cryptocarya Latifolia, an Indigenous Medicinal Plant of South Africa
Phytochemical, Elemental and Biotechnological Study of Cryptocarya latifolia, an Indigenous Medicinal Plant of South Africa by Mohammed Falalu Hamza Submitted in fulfillment of the academic requirements for the degree of Master of Science in Chemistry in the School of Chemistry and Physics, University of KwaZulu-Natal, Durban 2013 Phytochemical, Elemental and Biotechnological Study of Cryptocarya latifolia, an Indigenous Medicinal Plant of South Africa by Mohammed Falalu Hamza Submitted in fulfillment of the academic requirements for the degree of Master of Science in Chemistry in the School of Chemistry and Physics, University of KwaZulu-Natal, Durban 2013 As the candidate’s supervisor, I have approved this thesis for submission. Signed_______________________Name__________________________Date_________ DECLARATION I Mohammed Falalu Hamza declare that 1. The research reported in this thesis, except where otherwise indicated, is my original research. 2. This thesis has not been submitted for any degree or examination at any other University. 3. This thesis does not contain other persons’ data, pictures, graphs or other information, unless specifically acknowledged as being sourced from other persons 4. This thesis does not contain other persons’ writing, unless specifically acknowledged as being sourced from other researchers. Where other written sources have been quoted, then: a. Their words have been re-written but the general information attributed to them has been referenced. b. Where their exact words have been used, then their writing has been placed in italics and inside quotation marks, and referenced. 5. This thesis does not contain text, graphics or tables copied and pasted from the internet, unless specifically acknowledged, and then source being detailed in the thesis and in the References sections Author: ___________________________________________________ Mohammed Falalu Hamza Supervisor:________________________________________________ Dr. -
Doctorat De L'université De Toulouse
En vue de l’obt ention du DOCTORAT DE L’UNIVERSITÉ DE TOULOUSE Délivré par : Université Toulouse 3 Paul Sabatier (UT3 Paul Sabatier) Discipline ou spécialité : Ecologie, Biodiversité et Evolution Présentée et soutenue par : Joeri STRIJK le : 12 / 02 / 2010 Titre : Species diversification and differentiation in the Madagascar and Indian Ocean Islands Biodiversity Hotspot JURY Jérôme CHAVE, Directeur de Recherches CNRS Toulouse Emmanuel DOUZERY, Professeur à l'Université de Montpellier II Porter LOWRY II, Curator Missouri Botanical Garden Frédéric MEDAIL, Professeur à l'Université Paul Cezanne Aix-Marseille Christophe THEBAUD, Professeur à l'Université Paul Sabatier Ecole doctorale : Sciences Ecologiques, Vétérinaires, Agronomiques et Bioingénieries (SEVAB) Unité de recherche : UMR 5174 CNRS-UPS Evolution & Diversité Biologique Directeur(s) de Thèse : Christophe THEBAUD Rapporteurs : Emmanuel DOUZERY, Professeur à l'Université de Montpellier II Porter LOWRY II, Curator Missouri Botanical Garden Contents. CONTENTS CHAPTER 1. General Introduction 2 PART I: ASTERACEAE CHAPTER 2. Multiple evolutionary radiations and phenotypic convergence in polyphyletic Indian Ocean Daisy Trees (Psiadia, Asteraceae) (in preparation for BMC Evolutionary Biology) 14 CHAPTER 3. Taxonomic rearrangements within Indian Ocean Daisy Trees (Psiadia, Asteraceae) and the resurrection of Frappieria (in preparation for Taxon) 34 PART II: MYRSINACEAE CHAPTER 4. Phylogenetics of the Mascarene endemic genus Badula relative to its Madagascan ally Oncostemum (Myrsinaceae) (accepted in Botanical Journal of the Linnean Society) 43 CHAPTER 5. Timing and tempo of evolutionary diversification in Myrsinaceae: Badula and Oncostemum in the Indian Ocean Island Biodiversity Hotspot (in preparation for BMC Evolutionary Biology) 54 PART III: MONIMIACEAE CHAPTER 6. Biogeography of the Monimiaceae (Laurales): a role for East Gondwana and long distance dispersal, but not West Gondwana (accepted in Journal of Biogeography) 72 CHAPTER 7 General Discussion 86 REFERENCES 91 i Contents. -
Computer Vision Cracks the Leaf Code
Computer vision cracks the leaf code Peter Wilfa,1, Shengping Zhangb,c,1, Sharat Chikkerurd, Stefan A. Littlea,e, Scott L. Wingf, and Thomas Serreb,1 aDepartment of Geosciences, Pennsylvania State University, University Park, PA 16802; bDepartment of Cognitive, Linguistic and Psychological Sciences, Brown Institute for Brain Science, Brown University, Providence, RI 02912; cSchool of Computer Science and Technology, Harbin Institute of Technology, Weihai 264209, Shandong, People’s Republic of China; dAzure Machine Learning, Microsoft, Cambridge, MA 02142; eLaboratoire Ecologie, Systématique et Evolution, Université Paris-Sud, 91405 Orsay Cedex, France; and fDepartment of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013 Edited by Andrew H. Knoll, Harvard University, Cambridge, MA, and approved February 1, 2016 (received for review December 14, 2015) Understanding the extremely variable, complex shape and venation species (15–19), and there is community interest in approaching this characters of angiosperm leaves is one of the most challenging problem through crowd-sourcing of images and machine-identifi- problems in botany. Machine learning offers opportunities to analyze cation contests (see www.imageclef.org). Nevertheless, very few large numbers of specimens, to discover novel leaf features of studies have made use of leaf venation (20, 21), and none has angiosperm clades that may have phylogenetic significance, and to attempted automated learning and classification above the species use those characters to classify unknowns. Previous computer vision level that may reveal characters with evolutionary significance. approaches have primarily focused on leaf identification at the species There is a developing literature on extraction and quantitative level. It remains an open question whether learning and classification analyses of whole-leaf venation networks (22–25). -
Tasmania - from the Wet West to the Dry East
This collection is maintained with the assistance of the Tasmania - from the wet west to the dry east. Regional Branch of the Australian Plant Society. Influences on the development of the Tasmanian plant mix Montane moorland and cool oceanic heathland When Gondwana existed as a super Geology of Tasmania Vegetation Map of Tasmania The Tasmanian highland vegetation developed in isolation from the Australian Alps. Even during ice continent, Australia and Tasmania, Africa, ages, hundreds of kilometres of lowland vegetation separated the two high altitude environments. South America, New Zealand and Antarctica shared many plant families and some Montane plants have to cope with wide temperature fluctuations, with periods of below 0°C and Genera. exposure to winds. Cold may be prolonged if the ground freezes. Plants may be blanketed by snow or BASS STRAIT the mountains by cloud. Snowmelt or clear weather can cause intense rays of light, resulting in high For example, the protea family has members temperature. Wind or sun can dry the plant and soil. in all those land masses except Antarctica. The Southern Africa panel covers the protea family more fully. Plants require moisture and warmth. Small hard leaves offer Tasmania was the last land mass to break protection from the drying away from Antarctica. The opening of the effects of sun and wind. Low gap between these land masses allowed the ocean to circulate growth avoids wind. Branches around Antarctica, cooling the earth’s climate and so locking up grow close together to shelter vast quantities of water as ice. the parts of each plant. -
Sinopse Taxonômica Da Família Lauraceae No Estado Do Rio De Janeiro, Brasil
Acta bot. bras. 19(3): 563-572. 2005 Sinopse taxonômica da família Lauraceae no Estado do Rio de Janeiro, Brasil Alexandre Quinet¹ Recebido em 13/07/2004. Aceito em 07/01/2005 RESUMO – (Sinopse taxonômica da família Lauraceae no Estado do Rio de Janeiro, Brasil). O presente trabalho consiste de uma sinopse taxonômica dos gêneros da família Lauraceae no Estado do Rio de Janeiro, Brasil. Constatou-se a ocorrência de cerca de 109 espécies distribuídas em 16 gêneros: Aniba Aubl., Aiouea Aubl., Beilschmiedia Nees, Cassytha L., Cinnamomum Schaeff., Cryptocarya R. Br., Endlicheria Nees, Licaria Aubl., Mezilaurus Kuntze ex Taub., Nectandra Rol. ex Rottb., Ocotea Aubl., Persea Mill., Phyllostemonodaphne Kosterm., Pleurothyrium Nees, Rhodostemonodaphne Rohwer & Kubitzki e Urbanodendron Mez. Foi elaborada uma chave para identificação dos gêneros, fornecidos descrições e comentários sobre cada um deles, com distribuição geográfica, número de espécies no Brasil e no Estado do Rio de Janeiro, como também é disponibilizada uma lista preliminar das espécies ocorrentes no Estado. Palavras-chave: taxonomia, sinopse, Lauraceae, Rio de Janeiro, Brasil ABSTRACT – (Taxonomic synopsis of the family Lauraceae in the Rio de Janeiro State, Brazil). The present work consists of a taxonomic synopsis of the genera of the family Lauraceae in the Rio de Janeiro State, Brazil. It was verified the occurrence of about 109 species of 16 genera: Aniba Aubl., Aiouea Aubl., Beilschmiedia Nees, Cassytha L., Cinnamomum Schaeff., Cryptocarya R. Br., Endlicheria Nees, Licaria Aubl., Mezilaurus Kuntze ex Taub., Nectandra Rol. ex Rottb., Ocotea Aubl., Persea Mill., Phyllostemonodaphne Kosterm., Pleurothyrium Nees, Rhodostemonodaphne Rohwer & Kubitzki, Urbanodendron Mez. A key was elaborated for identification of genera, and also descriptions and comments on each one of them, with geographical distribution, number of species in Brazil and in the Rio de Janeiro State, and a preliminary list of the species that occur in the State.