Arboretum Tree List
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TAXON:Trema Orientalis (L.) Blume SCORE:10.0 RATING
TAXON: Trema orientalis (L.) Blume SCORE: 10.0 RATING: High Risk Taxon: Trema orientalis (L.) Blume Family: Cannabaceae Common Name(s): charcoal tree Synonym(s): Celtis guineensis Schumach. gunpowder tree Celtis orientalis L. peach cedar Trema guineensis (Schumach.) Ficalho poison peach Assessor: Chuck Chimera Status: Assessor Approved End Date: 4 Mar 2020 WRA Score: 10.0 Designation: H(Hawai'i) Rating: High Risk Keywords: Tropical, Pioneer Tree, Weedy, Bird-Dispersed, Coppices Qsn # Question Answer Option Answer 101 Is the species highly domesticated? y=-3, n=0 n 102 Has the species become naturalized where grown? 103 Does the species have weedy races? Species suited to tropical or subtropical climate(s) - If 201 island is primarily wet habitat, then substitute "wet (0-low; 1-intermediate; 2-high) (See Appendix 2) High tropical" for "tropical or subtropical" 202 Quality of climate match data (0-low; 1-intermediate; 2-high) (See Appendix 2) High 203 Broad climate suitability (environmental versatility) y=1, n=0 y Native or naturalized in regions with tropical or 204 y=1, n=0 y subtropical climates Does the species have a history of repeated introductions 205 y=-2, ?=-1, n=0 y outside its natural range? 301 Naturalized beyond native range y = 1*multiplier (see Appendix 2), n= question 205 y 302 Garden/amenity/disturbance weed n=0, y = 1*multiplier (see Appendix 2) y 303 Agricultural/forestry/horticultural weed n=0, y = 2*multiplier (see Appendix 2) y 304 Environmental weed n=0, y = 2*multiplier (see Appendix 2) n 305 Congeneric weed 401 -
Celtis Occidentalis
Celtis occidentalis - American or Common Hackberry (Ulmaceae) ------------------------------------------------------------------------------------------------------------------ Celtis occidentalis is a tough tree for urban or rural -lateral stems often die back a few inches to give a sites, growing rapidly to provide shade, windbreak, ragged appearance to the ends of branches and/or erosion control under stressful conditions. Trunk -light gray to gray-green FEATURES -very corky to warty ornamental bark, slowly Form becoming platy with age -large deciduous tree -often to 3' or more in diameter on old trees, with -maturing at 70' tall x significant basal flair 50' wide -wood is much stronger than Silver Maple (another -upright oval growth quick shade tree) habit in youth, quickly losing its central USAGE leader and becoming Function rounded to irregular in -shade tree (for highly stressed, poor soil, or wet soil habit with age sites where rapid growth is needed), deciduous -rapid growth rate windbreak, pioneer invader tree Culture Texture -full sun -medium texture overall in foliage and when bare -prefers moist soils but (fine-textured twigs, but bold and irregular branching is adaptable to many pattern) adverse conditions, -average density in foliage but thick when bare including wet or dry Assets sites and poor soils -urban tolerant (dry sites, soil compaction, pollution, -propagated primarily wind, heat, acid or alkaline soil tolerant), ornamental by seed but also by rooted stem cuttings or grafted bark, rapid growth, adaptable to wet -
Oberholzeria (Fabaceae Subfam. Faboideae), a New Monotypic Legume Genus from Namibia
RESEARCH ARTICLE Oberholzeria (Fabaceae subfam. Faboideae), a New Monotypic Legume Genus from Namibia Wessel Swanepoel1,2*, M. Marianne le Roux3¤, Martin F. Wojciechowski4, Abraham E. van Wyk2 1 Independent Researcher, Windhoek, Namibia, 2 H. G. W. J. Schweickerdt Herbarium, Department of Plant Science, University of Pretoria, Pretoria, South Africa, 3 Department of Botany and Plant Biotechnology, University of Johannesburg, Johannesburg, South Africa, 4 School of Life Sciences, Arizona a11111 State University, Tempe, Arizona, United States of America ¤ Current address: South African National Biodiversity Institute, Pretoria, South Africa * [email protected] Abstract OPEN ACCESS Oberholzeria etendekaensis, a succulent biennial or short-lived perennial shrublet is de- Citation: Swanepoel W, le Roux MM, Wojciechowski scribed as a new species, and a new monotypic genus. Discovered in 2012, it is a rare spe- MF, van Wyk AE (2015) Oberholzeria (Fabaceae subfam. Faboideae), a New Monotypic Legume cies known only from a single locality in the Kaokoveld Centre of Plant Endemism, north- Genus from Namibia. PLoS ONE 10(3): e0122080. western Namibia. Phylogenetic analyses of molecular sequence data from the plastid matK doi:10.1371/journal.pone.0122080 gene resolves Oberholzeria as the sister group to the Genisteae clade while data from the Academic Editor: Maharaj K Pandit, University of nuclear rDNA ITS region showed that it is sister to a clade comprising both the Crotalarieae Delhi, INDIA and Genisteae clades. Morphological characters diagnostic of the new genus include: 1) Received: October 3, 2014 succulent stems with woody remains; 2) pinnately trifoliolate, fleshy leaves; 3) monadel- Accepted: February 2, 2015 phous stamens in a sheath that is fused above; 4) dimorphic anthers with five long, basifixed anthers alternating with five short, dorsifixed anthers, and 5) pendent, membranous, one- Published: March 27, 2015 seeded, laterally flattened, slightly inflated but indehiscent fruits. -
(Celtis Occidentalis) Announcing the 2020 SMA Urban Tree of the Year
savatree.com Announcing the 2020 SMA Urban Tree of the Year: Hackberry (Celtis occidentalis) Study Area Outline This map, indicating tree canopy Census Block Groups prioritization, addresses the need Tree Canopy Prioritization for green infrastructure, heat island Compiled by Michelle Sutton, City Trees Editor Highest Priority relief and environmental justice. It factors in corresponding maps with the following variables: minority Red gum (Eucalyptus camaldulensis) The experienced Medium populations, median household arborist can tell right away that this tree was topped decades income, impervious surfaces, ago, with the resulting shoot growth making up most of surface temperature and existing Lowest Priority tree canopy. the canopy. The homeowners were unconcerned with the Each fall, risk it posed. They like the shade and they don’t give a hoot SMA members nom- about having to rake leaves. I love homeowners like that! inate and vote for the Urban Tree of the Year; in 2020, the Where are the trees winner of that distinction is hackberry (Celtis occidentalis). in your city? In this tribute to the humble and hardworking hackberry, we SavATree can help you look at the distribution hear from New York Tree Trust of tree canopy across your city and relate it Development Director James to the biophysical and Kaechele; State of Wyoming Community Resource Forester social environment. Tara Costanzo; Upper Arlington, Mapping is a tool Ohio Parks and Forestry to inform program, Superintendent Steve Cothrel; City of Oak Creek, Wisconsin policy, and practice to Urban Forester Rebecca Lane; identify opportunities Hamilton, Ontario Supervisor of for increasing Urban Forestry Tami Sadonoja; environmental equity. -
Fruits and Seeds of Genera in the Subfamily Faboideae (Fabaceae)
Fruits and Seeds of United States Department of Genera in the Subfamily Agriculture Agricultural Faboideae (Fabaceae) Research Service Technical Bulletin Number 1890 Volume I December 2003 United States Department of Agriculture Fruits and Seeds of Agricultural Research Genera in the Subfamily Service Technical Bulletin Faboideae (Fabaceae) Number 1890 Volume I Joseph H. Kirkbride, Jr., Charles R. Gunn, and Anna L. Weitzman Fruits of A, Centrolobium paraense E.L.R. Tulasne. B, Laburnum anagyroides F.K. Medikus. C, Adesmia boronoides J.D. Hooker. D, Hippocrepis comosa, C. Linnaeus. E, Campylotropis macrocarpa (A.A. von Bunge) A. Rehder. F, Mucuna urens (C. Linnaeus) F.K. Medikus. G, Phaseolus polystachios (C. Linnaeus) N.L. Britton, E.E. Stern, & F. Poggenburg. H, Medicago orbicularis (C. Linnaeus) B. Bartalini. I, Riedeliella graciliflora H.A.T. Harms. J, Medicago arabica (C. Linnaeus) W. Hudson. Kirkbride is a research botanist, U.S. Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, BARC West Room 304, Building 011A, Beltsville, MD, 20705-2350 (email = [email protected]). Gunn is a botanist (retired) from Brevard, NC (email = [email protected]). Weitzman is a botanist with the Smithsonian Institution, Department of Botany, Washington, DC. Abstract Kirkbride, Joseph H., Jr., Charles R. Gunn, and Anna L radicle junction, Crotalarieae, cuticle, Cytiseae, Weitzman. 2003. Fruits and seeds of genera in the subfamily Dalbergieae, Daleeae, dehiscence, DELTA, Desmodieae, Faboideae (Fabaceae). U. S. Department of Agriculture, Dipteryxeae, distribution, embryo, embryonic axis, en- Technical Bulletin No. 1890, 1,212 pp. docarp, endosperm, epicarp, epicotyl, Euchresteae, Fabeae, fracture line, follicle, funiculus, Galegeae, Genisteae, Technical identification of fruits and seeds of the economi- gynophore, halo, Hedysareae, hilar groove, hilar groove cally important legume plant family (Fabaceae or lips, hilum, Hypocalypteae, hypocotyl, indehiscent, Leguminosae) is often required of U.S. -
Sugarberry Plant Fact Sheet
Plant Fact Sheet Wildlife: Many species of songbirds including SUGARBERRY mockingbirds and robins eat the fruit and use the tree for nesting habitat. It is a larval and nectar host for two Celtis laevigata Willd. butterflies: hackberry emperor (Asterocampa celtis) and Plant Symbol = CELA American snout (Libytheana carineta). White-tailed deer browse the leaves and fruit. Contributed by: USDA NRCS Plant Materials Program Other Uses: Sugarberry is used for furniture, athletic goods, firewood, and plywood. It has limited use for flooring, creating, and for wood posts. It is used as an ornamental and as a street tree in residential areas in the lower South Status Please consult the PLANTS Web site and your State Department of Natural Resources for this plant’s current status (e.g. threatened or endangered species, state noxious status, and wetland indicator values). Description and Adaptation Sugarberry is a native tree that can grow up to 80 feet in height and up to 3 feet in diameter. It is a short lived tree, probably living not more than 150 years. It has a broad crown formed by spreading branches that are often drooped. The bark is light gray in color and can be smooth or covered with corky warts. The branchlets are covered with short hairs at first and eventually they become smooth. The leaves are alternated, simple, and slightly serrate. The leaves are 2-4 inches long and 1 to 2 Robert H. Mohlenbrock. USDA SCS, 1989. Midwest wetland flora: inches wide. The lance-shaped leaves gradually taper to a Field office illustrated guide to plant species. -
Polyploidy in Trema (Ulmaceae)
1971 341 Polyploidy in Trema (Ulmaceae) A. S. Hans1,2,3 Panjab University, Botany Department, Chandigarh 14, India ReceivedDecember 18, 1969 Introduction Trema Lour. belongs to Ulmaceae, a small family of trees and shrubs, encompassing 15 genera and about 150 species (Lawrence 1951) in tropics and subtropics of both the hemispheres. Trema is a small genus composed of 30 tropical species of which only three species constitute the Indian flora. The members of the Ulmaceae show variation in basic chromosome number. Celtis is polybasic with x=10, 11, and 14 (Darlington and Wylie 1955), while Ulmus, Holoptelea and Zelkovia exhibit a uniform base number of 14. A few instances of inter and intraspecific polyploidy in Celtis and Ulmus exist in nature. Celtis australias has been reported to be a tetraploid (2n=40), while C. laevigata, C. sinensis, and C. occidentalis are diploid, all with 2n=20 (Bowden 1945). The report of 2n=28 in C. occidentalis (Sax 1933) is suggestive of aneuploid races in the species. Most of the species of Ulmus are diploid except U. americana where in addition to the diploid race (Krause 1930), a tetraploid race is also known (Sax 1933). Artificial triploids and tetraploids have been raised in U. glabra by Ehrenberg (1945). The two chromosomally known species of Trema exhibit variable numbers. T. orientalis has been reported to have n=18 (Arora 1960) from Banglore and n=20 (Gajapathy 1961) from Madras in South India; T. politoria has n=10+B (Mehra and Gill). In view of the discordant reports on the chromosome number (n=18, 20) in Trema orientalis, the cytological study was undertaken to ratify the chromosome number, to assess the incidence of polyploidy, and if possible to determine the base number of this small genus. -
Number 3, Spring 1998 Director’S Letter
Planning and planting for a better world Friends of the JC Raulston Arboretum Newsletter Number 3, Spring 1998 Director’s Letter Spring greetings from the JC Raulston Arboretum! This garden- ing season is in full swing, and the Arboretum is the place to be. Emergence is the word! Flowers and foliage are emerging every- where. We had a magnificent late winter and early spring. The Cornus mas ‘Spring Glow’ located in the paradise garden was exquisite this year. The bright yellow flowers are bright and persistent, and the Students from a Wake Tech Community College Photography Class find exfoliating bark and attractive habit plenty to photograph on a February day in the Arboretum. make it a winner. It’s no wonder that JC was so excited about this done soon. Make sure you check of themselves than is expected to seedling selection from the field out many of the special gardens in keep things moving forward. I, for nursery. We are looking to propa- the Arboretum. Our volunteer one, am thankful for each and every gate numerous plants this spring in curators are busy planting and one of them. hopes of getting it into the trade. preparing those gardens for The magnolias were looking another season. Many thanks to all Lastly, when you visit the garden I fantastic until we had three days in our volunteers who work so very would challenge you to find the a row of temperatures in the low hard in the garden. It shows! Euscaphis japonicus. We had a twenties. There was plenty of Another reminder — from April to beautiful seven-foot specimen tree damage to open flowers, but the October, on Sunday’s at 2:00 p.m. -
Morristown Street Tree Resource Booklet
Morristown Street Tree Resource Booklet June 2020 I. Large Shade Trees for Areas Larger than 4’ x 6’ 3 Black Tupelo (Nyssa sylcatica) 4 Dawn Redwood (Metasequoia glyptostroboides) 5 Elm (Ulmus spp.) 6 Gingko (Gingko biloba) 7 Hardy Rubber Tree (Eucommia ulmoides) 8 Honey Locust (Gleditsia triacanthos inermis) 9 Katsura Tree (Cercidphyllum japonicum) 10 Kentucky Coffee Tree (Gymnocladus dioicus) 11 Linden (Tilia spp) 12 Little Leaf Linden (Tilia cordata) 13 Silver Linden (Tilia tomentosa) 14 Crimean Linden (Tilia x euchlora) 15 London Plane Tree (Platanus x acerfolia) 16 Maple, Red (Acer rubrum) 17 Maple, Sugar ( Acer saccharum) 18 Oak, Pin (Quercus palustris) 19 Oak, Red (Quercus rubra) 20 Oak, Shingle (Quercus imbricaria) 21 Oak, White (Quercus alba) 22 Oak, Willow (Quercus phellos) 23 Pagoda Tree (Styphnolobium japanicum) 24 Sweetgum (Liquidambur styraciflua) 25 Japanese Zelkova (Zelkova serrata) 26 II. Understory Small and Medium Trees for Areas Larger than 2’ x 6’ 27 American Yellowwood (Cladrastis kentukea) 28 Amur Maackia (Maackia amurensis) 29 Cherry (Prunus spp) 30 Crabapple (Malus spp) 31 Dogwood (Cornus spp) 32 Eastern Rudbud (Cercis canadensis) 33 Golden Raintree (Koelreuteria paniculata) 34 Hackberry (Celtis occidentalis) 35 Hawthorne (Crataegus spp) 36 Hop Hornbeam (Ostrya virginiana) 37 Japanese Snowball (Styrax japonicas) 38 Maple Amur (Acer ginnala ‘Flame’) 39 Maple, Hedge (Acer campestre) 40 Purpleleaf Plum (Prunus cerasifera) 41 Callery Pear (Pyrus calleryanan’) 42 I. Large Shade Trees for Areas Larger than 4’ x 6’ Black Tupelo (Nyssa sylcatica) Form: Pyramidal in youth with horizontal branches forming, and rounded or irregular crown. Mature Height: 30’ to 50’ Mature Spread: 20’ to 30’ Use: Acceptable street tree. -
Romania Total No. of Botanic Gardens Recorded in Romania: 10. Approx
Romania Total no. of Botanic Gardens recorded in Romania: 10. Approx. no. of living plant accessions recorded in these botanic gardens: c.50,000 Approx. no. of taxa in these collections: c.12,000 (probably 5,000 to 8,000 spp). Estimated % of pre-CBD collections: 80%. Location: BUCAREST Founded: 1860 Garden Name: Grâdina Botanicâ a Universitatii din Bucuresti Address: Soseaua Cotrocenti nr 32, Sectorul 6, Of. Postal 15, 76258 BUCARESTI (15). Status: University Herbarium: Yes Approx. no. of herbarium specimens: 500,000 Ex situ Collections: Bromeliaceae, Orchidaceae, Piperaceae, Cactaceae, Crassulaceae, Ficus, insectivorous plants. No. of taxa: 11,000 Rare & Endangered plants: Unknown Location: BUCAREST Founded: Unknown Garden Name: Grâdina Botanicâ a Instutui Agronomic "N. Balcesu" Address: Bulvardul Marasti nr 59, BUCURESTI. Status: State Herbarium: No Ex situ Collections: No information available. No. of taxa: Unknown Rare & Endangered plants: Unknown Location: CLUJ-NAPOCA Founded: 1903 Garden Name: Grâdina Agrobotanicâ Address: Universitatea de Stiinte Agricole si Medicinâ Veterinarâ, Grâdina Agrobotanicâ, Str. Mânâstur nr. 3, 3400 CLUJ-NAPOCA Status: State Herbarium: Yes Approx. no. of herbarium specimens: 30,000 Ex situ Collections: Cereals, forage, horticultural plants, medicinal plants, trees and shrubs, bulbs and herbaceous perennials. No. of taxa: 1,600 Rare & Endangered plants: Adonis transsilvanica, Hepatica transsilvanica. Special Conservation Collections: Forage, cultivated, cereal, technical, horticultural plants. Location: CLUJ-NAPOCA Founded: 1920 Garden Name: Grâdina Botanicâ a Universitatii din Cluj-Napoca Address: "Babes - Bolyai", Calea Republicii 42, 3400 CLUJ-NAPOCA. Status: University Herbarium: Yes Approx. no. of herbarium specimens: 700,000 Ex situ Collections: Temperate trees such as Sequoidendron giganteum, Ginkgo biloba, Magnolia obovata and Syringa josikaea. -
Contribution to the Biosystematics of Celtis L. (Celtidaceae) with Special Emphasis on the African Species
Contribution to the biosystematics of Celtis L. (Celtidaceae) with special emphasis on the African species Ali Sattarian I Promotor: Prof. Dr. Ir. L.J.G. van der Maesen Hoogleraar Plantentaxonomie Wageningen Universiteit Co-promotor Dr. F.T. Bakker Universitair Docent, leerstoelgroep Biosystematiek Wageningen Universiteit Overige leden: Prof. Dr. E. Robbrecht, Universiteit van Antwerpen en Nationale Plantentuin, Meise, België Prof. Dr. E. Smets Universiteit Leiden Prof. Dr. L.H.W. van der Plas Wageningen Universiteit Prof. Dr. A.M. Cleef Wageningen Universiteit Dr. Ir. R.H.M.J. Lemmens Plant Resources of Tropical Africa, WUR Dit onderzoek is uitgevoerd binnen de onderzoekschool Biodiversiteit. II Contribution to the biosystematics of Celtis L. (Celtidaceae) with special emphasis on the African species Ali Sattarian Proefschrift ter verkrijging van de graad van doctor op gezag van rector magnificus van Wageningen Universiteit Prof. Dr. M.J. Kropff in het openbaar te verdedigen op maandag 26 juni 2006 des namiddags te 16.00 uur in de Aula III Sattarian, A. (2006) PhD thesis Wageningen University, Wageningen ISBN 90-8504-445-6 Key words: Taxonomy of Celti s, morphology, micromorphology, phylogeny, molecular systematics, Ulmaceae and Celtidaceae, revision of African Celtis This study was carried out at the NHN-Wageningen, Biosystematics Group, (Generaal Foulkesweg 37, 6700 ED Wageningen), Department of Plant Sciences, Wageningen University, the Netherlands. IV To my parents my wife (Forogh) and my children (Mohammad Reza, Mobina) V VI Contents ——————————— Chapter 1 - General Introduction ....................................................................................................... 1 Chapter 2 - Evolutionary Relationships of Celtidaceae ..................................................................... 7 R. VAN VELZEN; F.T. BAKKER; A. SATTARIAN & L.J.G. VAN DER MAESEN Chapter 3 - Phylogenetic Relationships of African Celtis (Celtidaceae) ........................................ -
Amur Maackia Maackia Amurensis
Amur Maackia Maackia amurensis Paul W. Meyer ne of our most ER y important plant E l M exploration goals AU O P is collecting tree species that demonstrate stress tolerance and are therefore likely candidates for evalu- ation as urban street trees. Maackia amurensis is out- standing in its promise as a tough and useful urban tree. It is native over a wide geographic area including Japan, the Korean penin- sula, northeast China, and far eastern Russia. It is a member of the legume family (Fabaceae) and it is one of the relatively few trees that support nitrogen fixing bacteria on its roots. Although it was introduced to the United States in the late nineteenth century, it is still relatively rare here. In cultivation Maackia amurensis is a medium- sized tree reaching 45 feet (13.7 meters) or more (we were surprised to see specimens in China grow- ing well up into the for- est canopy, taller than the species is usually reported to grow). It has compound leaves similar to its rela- tive, black locust (Rob- inia pseudoacacia). As the leaves emerge in the spring they are covered with silky hairs which give the tree a silvery-gray appearance. A 40-foot tall specimen of Amur maackia at the Morris Arboretum. Maackia amurensis 69 ER y E l M Upright racemes of small cream- AU P colored flowers appear in July, a time when few other trees are blooming. Amur maackia’s bark is slightly exfoliating with handsome shades of copper and tan. It is especially strik- ing when backlit.