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Osher Lifelong Learning Institute
USDA-ARS National Plant Germplasm System Conservation of Fruit & Nut Genetic Resources Joseph Postman Plant Pathologist & Curator National Clonal Germplasm Repository Corvallis, Oregon May 2010 Mission: Collect – Preserve Evaluate – Enhance - Distribute World Diversity of Plant Genetic Resources for Improving the Quality and Production of Economic Crops Important to U.S. and World Agriculture Apple Accessions at Geneva Malus angustifolia ( 59 Accessions) Malus sikkimensis ( 14 Accessions) Malus baccata ( 67 Accessions) Malus sp. ( 41 Accessions) Malus bhutanica ( 117 Accessions) Malus spectabilis ( 9 Accessions) Malus brevipes ( 2 Accessions) Malus sylvestris ( 70 Accessions) Malus coronaria ( 98 Accessions) Malus toringo ( 122 Accessions) Malus domestica ( 1,389 Accessions) Malus transitoria ( 63 Accessions) Malus doumeri ( 2 Accessions) Malus trilobata ( 2 Accessions) Malus florentina ( 4 Accessions) Malus tschonoskii ( 3 Accessions) Malus floribunda ( 12 Accessions) Malus x adstringens ( 2 Accessions) Malus fusca ( 147 Accessions) Malus x arnoldiana ( 2 Accessions) Malus halliana ( 15 Accessions) Malus x asiatica ( 20 Accessions) Malus honanensis ( 4 Accessions) Malus x astracanica ( 1 Accessions) Malus hupehensis ( 185 Accessions) Malus x atrosanguinea ( 2 Accessions) Malus hybrid ( 337 Accessions) Malus x dawsoniana ( 2 Accessions) Malus ioensis ( 72 Accessions) Malus x hartwigii ( 5 Accessions) Malus kansuensis ( 45 Accessions) Malus x magdeburgensis ( 2 Accessions) Malus komarovii ( 1 Accessions) Malus x micromalus ( 25 Accessions) -
Malus Tschonoskii Flowering Crab
http://vdberk.demo-account.nl/trees/malus-tschonoskii/ Rosaceae Malus Malus tschonoskii Flowering Crab Height 8 - 10 (12) m Crown broad pyramidal to ovoid, half-open crown Bark and branches hairless, dark brown Leaf oval to elliptical, felt-like grey-green, 7 - 11 cm Attractive autumn colour yellow, orange, red, purple Flowers white, Ø 3 - 4 cm, not very remarkable, May Fruits few, yellowish-brown, Ø 2 - 3 cm Spines/thorns none Toxicity non-toxic (usually) Soil type nutritious, well drained soil Paving tolerates paving Winter hardiness 6a (-23,3 to -20,6 °C) Wind resistance good, susceptible to sea wind Wind / frost / salt resistant to frost (WH 1 - 6) Fauna tree valuable for bees (honey plant), provides food for birds Application avenues and broad streets, parks, squares, theme parks, cemeteries, industrial areas, large gardens Type/shape clearstem tree, multi-stem tree, specimen tree Origin Japan A type that occurs in the wild in Japan, used more for its decorative leaves than for the flowers or fruit. Grows vertically with a straight main trunk. The winter buds are a remarkable brownish-red colour and glossy. In the spring the young leaves emerge almost white. Once they are fully grown only the underside remains a remarkable light grey. The leaves are rough and slightly lobed. No other ornamental apple tree has such exceptional autumnal colours as this. With its many shades, from purple and copper through orange to yellow, the tree is a real eye-catcher in the autumn. The (fragrant) flowers and the fruits are much less spectacular than those of the other ornamental apple trees. -
Campus Tree Care Plan
2015 Illinois Tree Campus A Tree Care Plan for the University of Illinois at Urbana-Champaign December 30, 2015 Contents Contents .................................................................................................................................................................................... 3 Standard 1: Campus Tree Advisory Committee .................................................................................................................. 1 Background .......................................................................................................................................................................... 1 Campus Tree Advisory Committee .................................................................................................................................. 1 2015 Committee Members ................................................................................................................................................. 2 2015 Meeting Schedule ....................................................................................................................................................... 2 Standard 2: Campus Tree Care Plan...................................................................................................................................... 2 1. Purpose of Tree Care Plan ............................................................................................................................................. 2 2. Responsible Department ............................................................................................................................................... -
(Public Pack)Agenda Document for Growth, Environment And
Public Document Pack AB GROWTH, ENVIRONMENT AND RESOURCES SCRUTINY COMMITTEE WEDNESDAY 10 JANUARY 2018 7.00 PM Bourges/Viersen Room - Town Hall AGENDA Page No 1. Apologies for Absence 2. Declarations of Interest and Whipping Declarations At this point Members must declare whether they have a disclosable pecuniary interest, or other interest, in any of the items on the agenda, unless it is already entered in the register of members’ interests or is a “pending notification “ that has been disclosed to the Solicitor to the Council. Members must also declare if they are subject to their party group whip in relation to any items under consideration. 3. Minutes of Growth, Environment and Resources Scrutiny Committee 3 - 20 and Joint Scrutiny of the Budget Meetings Held on 1 November 2017 – Growth, Environment and Resources Scrutiny Committee 29 November 2017 – Joint Scrutiny of the Budget Meeting 4. Call In of any Cabinet, Cabinet Member or Key Officer Decisions The decision notice for each decision will bear the date on which it is published and will specify that the decision may then be implemented on the expiry of 3 working days after the publication of the decision (not including the date of publication), unless a request for call-in of the decision is received from any two Members of the relevant Scrutiny Committee. If a request for call-in of a decision is received, implementation of the decision remains suspended for consideration by the relevant Scrutiny Committee. There is an induction hearing loop system available in all meeting rooms. Some of the systems are infra-red operated, if you wish to use this system then please contact Paulina Ford on 01733 452508 as soon as possible. -
Exciting New and Under Utilized Trees for the Urban Environment
Exciting New and Under Utilized Trees for the Urban Environment For Association of Professional Landscape Designers Annual Design Symposium, Wednesday January 30, 2013 Presented By: Jim Barborinas, ISA, ASCA, Urban Forest Nursery, Inc. & Urban Forestry Services, Inc., Mount Vernon, Washington Tree Species lists are never finished! Why? Species Height Categories Small trees to 30’, spreading habit & narrow Diversity habit. Overused Medium trees to 45’, spreading habit & Poorly Performing Varieties narrow habit. New Varieties Large trees over 45’, spreading habit & narrow habit. Note: Tree heights and widths vary within categories Small Trees to 30’, Spreading Habit. Most Suitable for under utility lines. Snowcone Japanese Snowbell, Styrax japonicus ‘JFS-D’ City Sprite Zelkova, Zelkova serrata ‘JFS-KW1’ Jack Pear, Pyrus calleryana ‘Jaczam’ Golden Raindrops Crabapple Malus transitoria ‘Schmidtcutleaf’ Royal Raindrops Crabapple,Malus ‘JFS-KW5 ’ Royal Burgundy Cherry, Prunus serrulata ‘Royal Burgundy’ Snow Goose Cherry, Prunus ‘Snow Goose’ American Hornbeam, Carpinus caroliniana. Look for ‘Ball of Fire’, ‘Firespire’, ‘Palisade’ & ‘Native Flame’ Cultivars. Lavalle Hawthorn, Crataegus x Lavallei Japanese Hornbeam, Carpinus japonica Venus Dogwood, Cornus (kousa x nuttallii) x kousa ‘Venus-KN 30-8’ or ‘Starlite-KN4-43’ Crimson Cloud Hawthorn, Crataegus laevigata ‘Crimson Cloud’ Small Trees to 30’, Narrow Habit. Most Suitable for under utility lines. ‘Hanna’s Heart’ Katsura,Cercidiphylum japonicum ‘Hanna’s Heart’ Tschonoskii Flowering crab, Malus tschonoskii Crimson Point Plum, Prunus cerasifera ‘Cripoizam’ Red Cascade Mountain Ash, Sorbus americana ‘Dwarfcrown’ Ruby Vase Parrotia, Parrotia Persica ‘Ruby Vase’ Adirondack Crabapple, Malus ‘Adirondack’ Medium Trees to 45’, Spreading Habit. Frontier Elm, Ulmus ‘Frontier’ Emerald Sunshine Elm, Ulmus propinqua ‘JFS-Bieberich’ Sourgum, Nyssa Sylvatica. -
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) ........................................ -
Urban Forest Tree Species Research for the ACT
Project Name: Urban Forest Tree Species Research for the ACT Contracted Entity: The Australian National University Client: Environment, Planning and Sustainable Development Directorate (EPSDD) 1 | Page College of Science /Fenner School of Environment and Society [email protected] [email protected] [email protected] [email protected] The Australian National University Canberra ACT 2601 Australia www.anu.edu.au CRICOS Provider No. 00120C 2 | Page Table of Contents 1. Executive Summary ......................................................................................................................... 6 2. Context ............................................................................................................................................ 8 3. Consultancy Brief .......................................................................................................................... 11 4. Methodological background ......................................................................................................... 12 4.1. Urban forests and tree health ................................................................................................... 12 4.2. Urban drought and tree decline ............................................................................................... 13 4.3. Safe useful life expectancy ........................................................................................................ 14 5. Method ........................................................................................................................................ -
The Best Street Trees
I 83 THE BEST STREET TREES Considering all factors affecting street trees, it takes a strong, adaptable plant to endure today’s environmental stresses and survive in reasonably good condition. The following trees have proven durable and functional in appearance, structural strength, pest resistance, adaptability to inhos- pitable soils, and resistance to storm and mechanical damage. They also require minimal pruning to keep them visually and structurally sound. Barring unforeseen circumstances, they can be expected to live thirty to forty years or more. Most important, they are commercially available in landscape size and generally at reasonable prices. Although these trees represent our choice of the "best," they are not infallible. A plant that performs admirably in one area of the country may not duplicate that effort in another region. Honeylocust has suffered in recent years in the Midwest from canker, webworm, gall, and mites, while in New England these problems do not appear prevalent. The selec- tion of trees for city planting should, therefore, be based on a thorough knowledge of all factors which contribute to their successful establishment. :. ________ ., C.i Effective use of Pyrus calleryana ’Bradford’ for screening a parking lot. 84 I Acer buergeranum HEIGHT: 20-35 feet SPREAD: 15-25 feet HABIT: oval-rounded to rounded ZONE: 5, perhaps best in 6 ENVIRONMENT: full sun to light shade; well-drained soil; withstands drought and heat 85 A small tree with lustrous, dark green foliage that turns yellow and red in fall, Acer buergeranum exhibits good pest and drought tolerance. The bark is a hand- some orange-brown and develops a scaly, platy characteristic. -
Whatcom County's Approved Plant List
APPENDIX I WHATCOM COUNTY RIGHT-OF-WAY APPROVED PLANT LIST Groundcovers and Small Shrubs - Under 2' Botanical Name Height Spread Flowers Fall color Comments Common Name (ft) (ft) Achillea tomentosa yellow or Flower heads need to be 1 3-5 Wooly Yarrow cream mowed in fall Antennaria dioica Foliage is furry, can tolerate 1 2 pink Pussy Toes extreme cold Arctostaphylos media bright red Leathery dark green leaves, fast 2 10 Manzanita Media branches growing Arctostaphylos uva ursi leaves turn Many varieties available, great 1 15 Bearberry or Kinnikinnick* red for slopes Artemesia caucasica Silky silver foliage, tolerates 0.5 2 yellow Silver Spreader extreme heat and cold Baccharis pilularis Bright green mat, needs cut 2 6 Dwarf Coyote Bush back once per year white to Camellia sasanqua 1 1 Evergreen, glossy 2-3" leaves red Ceanothus blue to 1.5 2 Stay with local varieties Wild Lilac violet Cerastium tomentosum Silver gray foliage covered with 1 5+ white Snow-in-Summer white flowers Ornamental seed capsules with Dryas drummondii 0.5 1 yellow silvery white tails Juniperus Many varieties of low growing Juniper-Carpet, Creeper, or 2 5-8 junipers Spreader Oenothera May die back in severe winters, 1 2 varies Evening Primrose come back strong Penstemon davidsonii, rupicola Evergreen shrub, tolerates cold 2 1.5 varies Beard Tongue and heat Pyracantha augustifolia orange 1 4 white One of the hardiest 'Gnome'* berries Rosmariunus officinalis blue to 2 4-8 Dark green needle-like leaves Rosemary 'Prostratus' violet Trailing habit, dark green oval Saponaria ocymoides 1 3 pink leaves Sedum Use local varieties, cut flower 2 1-5 varies Stonecrop stalks in fall Teucrium chamaedrys or red-purple Toothed, dark green leaves, postratium 1 2-3 or white water until established Germander * Highly-recommended species Page 1 Thymus white to 2 1-2 Many varieties Thyme purple Shrubs Botanical Name Height Spread Flowers Fall color Comments Common Name (ft) (ft) Arctostaphylos bright red Shiny dark green leaves turn 2-15 20 varies Manzanita berries maroon in fall. -
Right Tree in the Right Place the First Time
City of Lake Oswego Right Tree Rightin the Place Contents Benefits of Trees . 3 Selecting a Tree . .4 . Planting Distances from Power Lines . 5 . Recommended Tree Species: . for 2'—4' wide planting spaces. .6 . for 4'—6' wide planting spaces . 8 for 6'—8' wide planting spaces. .12 . for 8'—10' wide planting spaces . 16 . for 10' wide + planting spaces. .18 . Proper Planting and Care . .22 . Avoiding Problems. 24 . Resources . 25 Benefits Of Trees rees improve the appearance and quality of life in Lake Oswego’s neighborhoods. But did you know they also help reduce stormwater runoff, filter pollutants, add Toxygen to the air we breathe, and decrease glare from roadways? For example, Lake Oswego’s street tree canopy (representing 13% of the total 44% citywide tree canopy cover) intercepts about 50 Olympic-size swimming pools worth of rainfall annually based on data compiled in the City’s 2009 State of the Urban Forest Report. Conserving existing trees and planting new trees help reduce the size and cost of hard infrastructure that is otherwise necessary for stormwater management. 3 Selecting A Tree Before selecting a tree to plant, a number of factors should be considered to ensure that an optimum species is chosen based on the site conditions of the available growing space. Choosing the right tree for the right place is a decision that will have an impact on the neighborhood for decades to come. Answering these questions can help you select the most suitable and desirable tree species for your site: 1. What is the size of the available growing space? 2. -
Freezing Tolerance of Evergreen and Deciduous Broad-Leaved Trees in Japan with Reference to Tree Regions
Title Freezing Tolerance of Evergreen and Deciduous Broad-Leaved Trees in Japan with Reference to Tree Regions Author(s) SAKAI, Akira Citation Low temperature science. Ser. B, Biological sciences, 36, 1-19 Issue Date 1979-03-30 Doc URL http://hdl.handle.net/2115/17836 Type bulletin (article) File Information 36_p1-19.pdf Instructions for use Hokkaido University Collection of Scholarly and Academic Papers : HUSCAP Low TemjJ. Sci. Ser B 36: 1-19, 1978 ------------- ----------------------- Freezing Tolerance of Evergreen and Deciduous Broad-Leaved Trees in Japan with Reference to Tree Regions! Akira SAKAI {j'!j fr ~i'F Abstract Dormant one-year-old twigs collected from mature trees growing under different climates in mid-winter were artificially hardened to overcome the differences due to the site of collection and to increase cold hardiness maximally. Evergreen broad-leaved trees which extend to the warm Pacific sea coast in Japan from the tropics and substropics in East Asia survived freezing only between -3 and _8°C. Warm-temperate evergreen broad leaved trees which range from southern China to the northern Kanto Dis trict in Japan were hardy between -7 and -18°C. Most of the hardy deciduous trees which have northern limits of their natural ranges in northern Honshu and southern Hokkaido were hardy to - 30°C and in these trees little or no difference was observed in hardiness among their cortex, buds and xylem. However, in most of the more widely distributed deciduous tree species, which extend to inland Hokkaido, Sakhalin, Northeastern pro vinces in China and Maritime provinces in USSR, the buds and cortex survived freezing even below -70°C, though the xylem sustained injury between - 30 and - 40°C. -
Task Force on Landscape Heritage and Plant Diversity Has Determined Initial Designations
THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL TASK FORCE ON LANDSCAPE HERITAGE & PLANT DIVERSITY nd 2 EDITION APPROVED BY THE CHANCELLORS BUILDINGS AND GROUNDS COMMITTEE February, 2005 This report is the product of a more than one-year-long effort from concerned members of the University of North Carolina community to ensure that the culturally, historically, and ecologically significant trees and landscaped spaces of the Chapel Hill campus are preserved and maintained in a manner befitting their beauty and grandeur. At the time of this writing, Carolina is in the middle of the most significant building and renovation period in its history. Such a program poses many significant challenges to the survival and well-being of our cherished trees and landscapes. This report attempts to identify, promote awareness, and provide guidelines for both the protection and enhancement of the grounds of the University of North Carolina at Chapel Hill. Furthermore, this report is intended to work within the framework of two earlier documents that help guide development of the campus: the 2002 UNC Master Plan and the 1997 Report of the Chancellor’s Task Force on Intellectual Climate at UNC. We hope that members of the university community as well as outside consultants and contractors will find this information both useful and pertinent. The Taskforce on Landscape Heritage and Plant Diversity 1 This report is the product of a more than one-year-long effort from concerned members of the University of North Carolina community to ensure that the culturally, historically, and ecologically significant trees and landscaped spaces of the Chapel Hill campus are preserved and maintained in a manner befitting their beauty and grandeur.