MCBG Conifer Collection
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Department of Planning and Zoning
Department of Planning and Zoning Subject: Howard County Landscape Manual Updates: Recommended Street Tree List (Appendix B) and Recommended Plant List (Appendix C) - Effective July 1, 2010 To: DLD Review Staff Homebuilders Committee From: Kent Sheubrooks, Acting Chief Division of Land Development Date: July 1, 2010 Purpose: The purpose of this policy memorandum is to update the Recommended Plant Lists presently contained in the Landscape Manual. The plant lists were created for the first edition of the Manual in 1993 before information was available about invasive qualities of certain recommended plants contained in those lists (Norway Maple, Bradford Pear, etc.). Additionally, diseases and pests have made some other plants undesirable (Ash, Austrian Pine, etc.). The Howard County General Plan 2000 and subsequent environmental and community planning publications such as the Route 1 and Route 40 Manuals and the Green Neighborhood Design Guidelines have promoted the desirability of using native plants in landscape plantings. Therefore, this policy seeks to update the Recommended Plant Lists by identifying invasive plant species and disease or pest ridden plants for their removal and prohibition from further planting in Howard County and to add other available native plants which have desirable characteristics for street tree or general landscape use for inclusion on the Recommended Plant Lists. Please note that a comprehensive review of the street tree and landscape tree lists were conducted for the purpose of this update, however, only -
Towards Land Cover Classification in Australia
Classifying Australian land cover C. Atyeo and R. Thackway December 2006 © Commonwealth of Australia 2006 This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from the Commonwealth. Requests and inquiries concerning reproduction and rights should be addressed to the Commonwealth Copyright Administration, Attorney General’s Department, Robert Garran Offices, National Circuit, Barton ACT 2600 or posted at http://www.ag.gov.au/cca. The Australian Government acting through the Bureau of Rural Sciences has exercised due care and skill in the preparation and compilation of the information and data set out in this publication. Notwithstanding, the Bureau of Rural Sciences, its employees and advisers disclaim all liability, including liability for negligence, for any loss, damage, injury, expense or cost incurred by any person as a result of accessing, using or relying upon any of the information or data set out in this publication to the maximum extent permitted by law. Postal address: Bureau of Rural Sciences GPO Box 858 Canberra, ACT 2601 Copies available from: BRS Publication Sales GPO Box 858 Canberra ACT 2601 Ph: 1800 020 157 Fax: 02 6272 2330 Email: [email protected] Internet: http://www.brs.gov.au ii Acknowledgments The authors wish to thank the State and Territory representatives on the National Vegetation Information System Technical Advisory Group and the Executive Steering Committee for Australian Vegetation Information for endorsing the need to take a whole- of-landscape approach to translating and compiling native, non-native and non-vegetated cover types as part of the National Vegetation Information System framework. -
Cytospora Canker
report on RPD No. 604 PLANT April 1996 DEPARTMENT OF CROP SCIENCES DISEASE UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN CYTOSPORA OR LEUCOSTOMA CANKER OF SPRUCE Cytospora or Leucostoma canker, the most common and damaging disease of spruce, is caused by the fungus Leucocytospora kunzei, synonym Cytospora kunzei (teleomorph or sexual state Leucostoma kunzei, synonym Valsa kunzei). This canker occurs on several conifers from New England to the western United States. Colo- rado or Colorado blue (Picea pungens) and Norway spruce (Picea abies), used for ornament and in wind- breaks, are the species most commonly affected in Illinois. The disease has reached epidemic proportions on Engelmann spruce (Picea engelmannii) and Douglas- fir (Pseudotsuga menziesii) in the eastern Rocky Mountains due to a succession of dry years in the area. Other trees reported as susceptible to the disease are given in Table 1. Spruce trees less than 10 to 15 years old usually do not have Cytospora canker. In landscape nurseries, how- ever, small branches of young Colorado blue and oc- casionally white spruces may be killed. Three varieties of Leucostoma kunzei are recognized by some spec- ialists: var. piceae on spruces, var. superficialis on pines, and var. kunzei on other conifers. Figure 1. Colorado spruce affected by Cytospora Dead and dying branches call attention to Cytospora or canker. Leucostoma canker with older branches more suscep- tible than young ones. The fungus kills areas of bark, usually at the bases of small twigs and branches, creating elliptical to diamond-shaped lesions. If the lesions enlarge faster than the stem and girdle it, the portion beyond the canker also dies. -
Chamaecyparis Lawsoniana: Lawson Falsecypress1 Edward F
ENH313 Chamaecyparis lawsoniana: Lawson Falsecypress1 Edward F. Gilman and Dennis G. Watson2 Introduction General Information Often seen at 40 to 60 feet tall by 15 feet wide in its culti- Scientific name: Chamaecyparis lawsoniana vated form, this North American native can soar to heights Pronunciation: kam-eh-SIP-uh-riss law-so-nee-AY-nuh of 100 to 150 feet in the wild. The massive, thick trunk and Common name(s): Lawson falsecypress, Port Orford cedar formal, upright, conical silhouette is softened by the gently Family: Cupressaceae weeping tips of the short, upright branches. The flattened, USDA hardiness zones: 5B through 7B (Fig. 2) dark blue-green branchlets have a delicate, almost fern-like Origin: native to North America appearance, and are nicely complemented by the rough, Invasive potential: little invasive potential deeply furrowed, reddish-brown bark. Available in a wide Uses: specimen; screen; bonsai variety of forms and bluish foliage colors, Lawson falsecy- Availability: not native to North America press still remains today an important timber trees from the Pacific Northwest. But it is rare in the nursery trade and probably not well adapted to most landscapes. Figure 2. Range Description Height: 40 to 60 feet Spread: 15 to 25 feet Crown uniformity: symmetrical Figure 1. Mature Chamaecyparis lawsoniana: Lawson Falsecypress 1. This document is ENH313, one of a series of the Environmental Horticulture, UF/IFAS Extension. Original publication date November 1993. Reviewed May 2014. Visit the EDIS website at http://edis.ifas.ufl.edu. 2. Edward F. Gilman, professor, Environmental Horticulture Department; Dennis G. Watson, former associate professor, Agricultural Engineering Department, UF/IFAS Extension, Gainesville FL 32611. -
Extinction, Transoceanic Dispersal, Adaptation and Rediversification
Turnover of southern cypresses in the post-Gondwanan world: Title extinction, transoceanic dispersal, adaptation and rediversification Crisp, Michael D.; Cook, Lyn G.; Bowman, David M. J. S.; Author(s) Cosgrove, Meredith; Isagi, Yuji; Sakaguchi, Shota Citation The New phytologist (2019), 221(4): 2308-2319 Issue Date 2019-03 URL http://hdl.handle.net/2433/244041 © 2018 The Authors. New Phytologist © 2018 New Phytologist Trust; This is an open access article under the terms Right of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Type Journal Article Textversion publisher Kyoto University Research Turnover of southern cypresses in the post-Gondwanan world: extinction, transoceanic dispersal, adaptation and rediversification Michael D. Crisp1 , Lyn G. Cook2 , David M. J. S. Bowman3 , Meredith Cosgrove1, Yuji Isagi4 and Shota Sakaguchi5 1Research School of Biology, The Australian National University, RN Robertson Building, 46 Sullivans Creek Road, Acton (Canberra), ACT 2601, Australia; 2School of Biological Sciences, The University of Queensland, Brisbane, Qld 4072, Australia; 3School of Natural Sciences, The University of Tasmania, Private Bag 55, Hobart, Tas 7001, Australia; 4Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan; 5Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan Summary Author for correspondence: Cupressaceae subfamily Callitroideae has been an important exemplar for vicariance bio- Michael D. Crisp geography, but its history is more than just disjunctions resulting from continental drift. We Tel: +61 2 6125 2882 combine fossil and molecular data to better assess its extinction and, sometimes, rediversifica- Email: [email protected] tion after past global change. -
The Role of Fir Species in the Silviculture of British Forests
Kastamonu Üni., Orman Fakültesi Dergisi, 2012, Özel Sayı: 15-26 Kastamonu Univ., Journal of Forestry Faculty, 2012, Special Issue The Role of True Fir Species in the Silviculture of British Forests: past, present and future W.L. MASON Forest Research, Northern Research Station, Roslin, Midlothian, Scotland EH25 9SY, U.K. E.mail:[email protected] Abstract There are no true fir species (Abies spp.) native to the British Isles: the first to be introduced was Abies alba in the 1600s which was planted on some scale until the late 1800s when it proved vulnerable to an insect pest. Thereafter interest switched to North American species, particularly grand (Abies grandis) and noble (Abies procera) firs. Provenance tests were established for A. alba, A. amabilis, A. grandis, and A. procera. Other silver fir species were trialled in forest plots with varying success. Although species such as grand fir have proved highly productive on favourable sites, their initial slow growth on new planting sites and limited tolerance of the moist nutrient-poor soils characteristic of upland Britain restricted their use in the afforestation programmes of the last century. As a consequence, in 2010, there were about 8000 ha of Abies species in Britain, comprising less than one per cent of the forest area. Recent species trials have confirmed that best growth is on mineral soils and that, in open ground conditions, establishment takes longer than for other conifers. However, changes in forest policies increasingly favour the use of Continuous Cover Forestry and the shade tolerant nature of many fir species makes them candidates for use with selection or shelterwood silvicultural systems. -
Non-Native Trees and Large Shrubs for the Washington, D.C. Area
Green Spring Gardens 4603 Green Spring Rd ● Alexandria ● VA 22312 Phone: 703-642-5173 ● TTY: 703-803-3354 www.fairfaxcounty.gov/parks/greenspring NON - NATIVE TREES AND LARGE SHRUBS FOR THE WASHINGTON, D.C. AREA Non-native trees are some of the most beloved plants in the landscape due to their beauty. In addition, these trees are grown for the shade, screening, structure, and landscape benefits they provide. Deciduous trees, whose leaves die and fall off in the autumn, are valuable additions to landscapes because of their changing interest throughout the year. Evergreen trees are valued for their year-round beauty and shelter for wildlife. Evergreens are often grouped into two categories, broadleaf evergreens and conifers. Broadleaf evergreens have broad, flat leaves. They also may have showy flowers, such as Camellia oleifera (a large shrub), or colorful fruits, such as Nellie R. Stevens holly. Coniferous evergreens either have needle-like foliage, such as the lacebark pine, or scale-like foliage, such as the green giant arborvitae. Conifers do not have true flowers or fruits but bear cones. Though most conifers are evergreen, exceptions exist. Dawn redwood, for example, loses its needles each fall. The following are useful definitions: Cultivar (cv.) - a cultivated variety designated by single quotes, such as ‘Autumn Gold’. A variety (var.) or subspecies (subsp.), in contrast, is found in nature and is a subdivision of a species (a variety of Cedar of Lebanon is listed). Full Shade - the amount of light under a dense deciduous tree canopy or beneath evergreens. Full Sun - at least 6 hours of sun daily. -
Callitris Forests and Woodlands
NVIS Fact sheet MVG 7 – Callitris forests and woodlands Australia’s native vegetation is a rich and fundamental Overview element of our natural heritage. It binds and nourishes our ancient soils; shelters and sustains wildlife, protects Typically, vegetation areas classified under MVG 7 – streams, wetlands, estuaries, and coastlines; and absorbs Callitris forests and woodlands: carbon dioxide while emitting oxygen. The National • comprise pure stands of Callitris that are restricted and Vegetation Information System (NVIS) has been developed generally occur in the semi-arid regions of Australia and maintained by all Australian governments to provide • in most cases Callitris species are a co-dominant a national picture that captures and explains the broad or occasional species in other vegetation groups, diversity of our native vegetation. particularly eucalypt woodlands and forests in temperate This is part of a series of fact sheets which the Australian semi-arid and sub-humid climates. After disturbance, Government developed based on NVIS Version 4.2 data to Callitris may regenerate in high densities and become provide detailed descriptions of the major vegetation groups a dominant member of a mixed canopy layer. Some of (MVGs) and other MVG types. The series is comprised of these modified communities are mapped asCallitris a fact sheet for each of the 25 MVGs to inform their use by forests or woodlands planners and policy makers. An additional eight MVGs are • are generally dominated by a herbaceous understorey available outlining other MVG types. with only a few shrubs • in New South Wales Callitris has been an important For more information on these fact sheets, including forestry timber and large monocultures have been its limitations and caveats related to its use, please see: encouraged for this purpose ‘Introduction to the Major Vegetation Group (MVG) fact sheets’. -
Catalogue of Conifers
Archived Document Corporate Services, University of Exeter Welcome to the Index of Coniferaes Foreword The University is fortunate in possessing a valuable collection of trees on its main estate. The trees are planted in the grounds of Streatham Hall which was presented in 1922 to the then University college of the South West by the late Alderman W. H. Reed of Exeter. The Arboretum was begun by the original owner of Streatham Hall, R. Thornton West, who employed the firm of Veitches of Exeter and London to plant a very remarkable collection of trees. The collection is being added to as suitable material becomes available and the development of the Estate is being so planned as not to destroy the existing trees. The present document deals with the Conifer species in the collection and gives brief notes which may be of interest to visitors. It makes no pretence of being more than a catalogue. The University welcomes interested visitors and a plan of the relevant portion of the Estate is given to indicate the location of the specimens. From an original printed by James Townsend and Sons Ltd, Price 1/- Date unknown Page 1 of 34 www.exeter.ac.uk/corporateservices Archived Document Corporate Services, University of Exeter Table of Contents The letters P, S, etc., refer to the section of the Estate in which the trees are growing. (Bot. indicates that the specimens are in the garden of the Department of Botany.) Here's a plan of the estate. The Coniferaes are divided into five families - each of which is represented by one or more genera in the collection. -
Morphology and Morphogenesis of the Seed Cones of the Cupressaceae - Part II Cupressoideae
1 2 Bull. CCP 4 (2): 51-78. (10.2015) A. Jagel & V.M. Dörken Morphology and morphogenesis of the seed cones of the Cupressaceae - part II Cupressoideae Summary The cone morphology of the Cupressoideae genera Calocedrus, Thuja, Thujopsis, Chamaecyparis, Fokienia, Platycladus, Microbiota, Tetraclinis, Cupressus and Juniperus are presented in young stages, at pollination time as well as at maturity. Typical cone diagrams were drawn for each genus. In contrast to the taxodiaceous Cupressaceae, in Cupressoideae outgrowths of the seed-scale do not exist; the seed scale is completely reduced to the ovules, inserted in the axil of the cone scale. The cone scale represents the bract scale and is not a bract- /seed scale complex as is often postulated. Especially within the strongly derived groups of the Cupressoideae an increased number of ovules and the appearance of more than one row of ovules occurs. The ovules in a row develop centripetally. Each row represents one of ascending accessory shoots. Within a cone the ovules develop from proximal to distal. Within the Cupressoideae a distinct tendency can be observed shifting the fertile zone in distal parts of the cone by reducing sterile elements. In some of the most derived taxa the ovules are no longer (only) inserted axillary, but (additionally) terminal at the end of the cone axis or they alternate to the terminal cone scales (Microbiota, Tetraclinis, Juniperus). Such non-axillary ovules could be regarded as derived from axillary ones (Microbiota) or they develop directly from the apical meristem and represent elements of a terminal short-shoot (Tetraclinis, Juniperus). -
Universidad Autónoma Agraria Antonio Narro
UNIVERSIDAD AUTÓNOMA AGRARIA ANTONIO NARRO DIVISIÓN DE AGRONOMÍA Pinus arizonica Engelm. PRESENTA: SERGIO AMILCAR CANUL TUN MONOGRAFÍA Presentada como requisito parcial para Obtener el título de: INGENIERO FORESTAL Buenavista, Saltillo, Coahuila, México Mayo de 2005 UNIVERSIDAD AUTÓNOMA AGRARIA ANTONIO NARRO DIVISIÓN DE AGRONOMÍA DEPARTAMENTO FORESTAL Pinus arizonica Engelm. MONOGRAFÍA Que somete a consideración del H. Jurado calificador como requisito parcial para obtener el título de: INGENIERO FORESTAL PRESENTA SERGIO AMILCAR CANUL TUN APROBADA PRESIDENTE DEL JURADO COORDINADOR DE LA DIVISIÓN DE AGRONOMÍA _____________________________ ________________________________ M. C. CELESTINO FLORES LÓPEZ M. C. ARNOLDO OYERVIDES GARCÍA Buenavista, Saltillo, Coahuila, México Mayo de 2005 UNIVERSIDAD AUTÓNOMA AGRARIA ANTONIO NARRO DIVISIÓN DE AGRONOMÍA DEPARTAMENTO FORESTAL Pinus arizonica Engelm. MONOGRAFÍA Que somete a consideración del H. Jurado calificador como requisito parcial para obtener el título de: INGENIERO FORESTAL PRESENTA SERGIO AMILCAR CANUL TUN PRESIDENTE DEL JURADO _____________________________ M. C. CELESTINO FLORES LÓPEZ PRIMER SINODAL SEGUNDO SINODAL _______________________________ ___________________________________ Dr. MIGUEL ÁNGEL CAPÓ ARTEAGA Dr. JOSÉ ÁNGEL VILLARREAL QUINTANILLA Buenavista, Saltillo, Coahuila, México Mayo de 2005 DEDICATORIA A mis grandes amores: Leydi Abigail Cob Chan Nayvi Abisai Canul Cob Por haber llegado a mi vida y formar parte de mi, son un gran motivo para triunfar y salir adelante en medio de una gran tempestad. A mis padres: Ramón Cruz Canul Vázquez Lucila Tún Cahuich. Por su gran sacrificio realizado, por la confianza que me brindaron y por ser mis mejores amigos. Siempre tuve sus consejos, ayuda en el momento más crítico y comprensión. A mis hermanos: Claudio Ezequiel, por aceptar ser mi amigo, por su compañía y apoyo durante mi carrera y en este trabajo. -
Universidad Autónoma De Nuevo León Facultad De Ciencias Forestales
UNIVERSIDAD AUTÓNOMA DE NUEVO LEÓN FACULTAD DE CIENCIAS FORESTALES EVALUACIÓN DEL ESTADO ACTUAL DE LAS POBLACIONES DE Abies vejarii Martínez EN EL NORESTE DE MÉXICO POR RIGOBERTO GONZÁLEZ CUBAS COMO REQUISITO PARCIAL PARA OBTENER EL GRADO DE DOCTOR EN CIENCIAS CON ORIENTACIÓN EN MANEJO DE RECURSOS NATURALES OCTUBRE, 2019 UNIVERSIDAD AUTÓNOMA DE NUEVO LEÓN FACULTAD DE CIENCIAS FORESTALES SUBDIRECCIÓN DE POSGRADO EVALUACIÓN DEL ESTADO ACTUAL DE LAS POBLACIONES DE Abies vejarii Martínez EN EL NORESTE DE MÉXICO POR RIGOBERTO GONZÁLEZ CUBAS COMO REQUISITO PARCIAL PARA OBTENER EL GRADO DE DOCTOR EN CIENCIAS CON ORIENTACIÓN EN MANEJO DE RECURSOS NATURALES LINARES, NUEVO LEÓN, MÉXICO OCTUBRE, 2019 AGRADECIMIENTOS Al Consejo Nacional de Ciencia y Tecnología (CONACYT). A la Facultad de Ciencias Forestales de la Universidad Autónoma de Nuevo León. A los ejidos de “La Encantada”, Nuevo León; “Valle Hermoso”, Tamaulipas; “Los Lirios”, Coahuila, Méx. A los integrantes de mi Comité de Tesis, Dr. Eduardo Javier Treviño Garza, Dr. Marco Aurelio González Tagle, Dr. Oscar Alberto Aguirre Calderón, Dr. Eduardo Alanís Rodríguez y Dr. Rahim Foroughbakchk Pournavab. A mis colegas que me apoyaron en campo Humberto, Israel, Mónica, Prudencia, Yessica, Gyorgy. Al laboratorio de Geomática. A mis compañeros de generación Perla, Dora, Ricardo, Ulises y Marco. DEDICATORIA A mi esposa: Angelina Bautista Cruz A mis hijos: Anthony Emir Santiago Elkin. A mis papas: Martina Cubas Nuñez Juan González Vásquez A mis hermanos: Manuela González Cubas Simón González Cubas Rosalía González Cubas Jaime González Cubas Juana González Cubas Esperanza González Cubas Contenido PRESENTACIÓN ........................................................................................................................ 1 CAPÍTULO I. RESEÑA DEL ESTUDIOS DE LA DISTRIBUCIÓN Y DINÁMICA DE ÁRBOLES FORESTALES EN POBLACIONES RELICTO .............................