In This Issue

Total Page:16

File Type:pdf, Size:1020Kb

In This Issue The BoxwoodBulletin A quarterly devoted to Man's oldest garden ornamental Ickworth in Suffolk, England, home of the first National Collection ofBuxus. See story on page 23. (Photo: E. Braimhridge) IN THIS ISSUE Growing Boxwoods in England, Elizabeth Braimbridge ... ............ ..... ................... 23 Buxus Phylogeny, Basil Shanahan .................... ..... .. ..... .. ... ....... .. ... ........................ 26 Williamsburg Garden Tour, Mrs. Robert L. Frackelton ....... ................................. 28 Workshop in Williamsburg, Tom Saunders ............. .............................................. 33 Minutes of Summer Board Meeting ........ ...................... ......... ... .............. ............... 35 Correspondence ............................................................. ........ ................... .............. 35 Members Share ......... ................................................................. .............. ... ............ 36 The Seasonal Gardener ...... ... .. ... ......... ... ............................. .. ... .......... ........... ... .... ... 38 October 1993 Volume 33, Number 2 TheAmerican Boxwood Society The American Boxwood Society is a not-for-profitorganiza­ Available Publications: tion founded in 1961 and devoted to the appreciation, scien­ Back issues of The Boxwood Bulletin (each) $ 4 tificunderstanding and propagationofthe genusBuxus L. There Boxwood Buyer's Guide (3rd Edition) 8 are more than 800 members in the United States and nine $ International Registration List ofCultivated Buxus L. $ 3 foreign countries. Index to The Boxwood Bulletin 1961-1986 $10 Index to the Boxwood Bulletin 1986-1991 $ 4 Officers: PRESIDENT: Contributions: Mr. Dale T. Taylor Wenonah, N.J. Gifts to the Society are tax-deductible and may be undesig­ nated or applied to: VICE-PRESIDENTS: Mrs. Robert L. Frackelton Fredericksburg, Va. Boxwood Handbook Fund Mrs. Malcolm L. Holekamp Webster Groves, Mo. Boxwood Memorial Garden Fund Boxwood Monograph Fund SECRETARY: Boxwood Research Fund Mrs. Joan C. Butler Winchester, Va. ABS Blandy Capital Fund EXECUTIVE TREASURER: Mrs. Katherine D. Ward Deerfield, Va. Correspondence: REGISTRAR: For address changes, memberships, dues, contributions, or to Mr. Lynn R. Batdorf Colesville, Md. order back issues or publications, write: DIRECTORS: Treasurer, The American Boxwood Society Mr. Lynn R. Batdorf (1996) Colesville, Md. P.O. Box 85, Boyce, Va. 22620 Mr. John W. Boyd, Jr. (1994) Alton, Va. For general information about the Society, advice concerning Mrs. Sigrid G. Harriman (1996) Fredericksburg, Va. boxwood problems or cultivar selection, write to The Ameri­ Mr. Malcolm Jamieson (1996) Richmond, Va. can Boxwood Society at the same address. You are also Mr. Richard D. Mahone (1995) Williamsburg, Va. welcome to write directly to the President: Mr. Tom Saunders (1994) Piney River, Va. Mrs. Tyra Sexton (1994) Fredericksburg, Va. Mr. Dale T. Taylor Dr. Stephen D. Southall (1995) Lynchburg, Va. 105 S. Princeton Avenue Wenonah, N. J. 08090 EX-OFFICIO: Dr. Edward F. Connor Boyce, Va. Call for Papers: BULLETIN EDITOR: Technical articles, news, history, lore, notes, and photographs John S. McCarthy Webster Groves, Mo. concerning boxwood specimens, gardens or plantings are solicited for possible publication in The Boxwood Bulletin. Memberships: Photographs should be suitable for reproduction and fully Memberships for the year May through April include $12 for captioned. Suggestions regarding format 'and content are four quarterly issuesof The Boxwood Bulletin: welcome. Material should be submitted to: Chairman, Bulletin Committee Individual $15 Sustaining $50 1714 Greenway Drive Family $20 Life $250 Fredericksburg, Va. 22401 Contributing $30 Patron $500 Material to be returned to the sender must be submitted with Non-member subscriptions for groups and institutions, such a self-addressed envelope carrying suitable postage. Every as botanic gardens and libraries, are $15 by the calendar effort will be made to protect submittals, but the Society year. cannot be responsible for loss or injury. The Bo:nvood Bulletin (ISSN 0006 8535) is published quarterly for Sl2.00peryear by The American Boxwood Society, BIandy Experimental Farm, Boyce, Va. 22620. Second class postage paid at Boyce, Va. POSTMASTER: Send address changes to The Bo:nvood Bulletin, P.O. Box 85, Boyce, Va. 22620. The Bulletin is printed by M-J Printers, Fredericksburg, Va. Growing Boxwoods in England Elizabeth Braimbridge The Langley Boxwood Nursery was plant identification. The aim is the boxwoods here was by Roy Lancaster started ten years ago and the first two conservation of a genus--or a section while he was compiling the famous years were spent clearing up the debris of it-in a known location. During the HiIlier Manual o/Trees and Shrubs. of a previously abandoned nursery last ten years the National Collections Entitled The Common Box in Britain which had been on the site. This year scheme has considerably raised public (ABS.Vol. 8(4):60), he realized how we were awarded the status of a awareness of the need to conserve old unaware we all were of the richness of National Collection of Buxus. Ickworth cultivars from becoming extinct. the boxwood family. in Suffolk, England, was the recipient The European concept of boxwood Langley Boxwood Nursery is of the first award of a National Collec­ is either as a topiary medium or as situated on very light sandy soil of low tion of Buxus status. sharply sheared hedging. We do not pH, in the county of Hampshire in the The collection holders are usually think of it as an ornamental shrub with South of England. We have a problem dedicated private gardeners, who differing forms and textures according with plummeting temperature drops in include His Royal Highness Prince to variety. Our more knowledgeable the evening, from a warm summer Charles, nurseries with a specialist gardeners here do know, rather hazily, afternoon to 3°C [37°F], even in production in a particular genus, or that there might be a few more varieties August, which does not help too much. horticultural colleges. There is therefore than dwarf and common box, and cv. A temperature of -lOoC [14°F] in a very personal attachment to their 'Elegantissima'; many of them wiIl winter with no snow cover is also a coIlections by the owners, which serves murmur, "I've always rather liked feature. to safeguard them and ensure their box ... ". Few of them, until recently, We mulch our fields with spent continuance in future. The collections were planting it. It was the missing mushroom compost, perfect for the are made available for reference and plant in our gardens. boxwoods owing to its chalk content sometimes propagating material and The only published study on and light humus. However, a benefit of At Langley Boxwood Nursery, customers select their specimens. (Photos: E. Braimbridge. except as noted) October 1993 23 the fast draining soil is that it can be glass at a nearby nursery, and receive sempervirens 'Memorial' quickly forms worked and plants lifted or planted them back in 9 cm pots ready to sell the a perfect oval shape. The new Germ<lI1 even after heavy rainfall. Root diseases following May. These young plants are cultivar B. sempervirens 'Blauer Heinz' do not occur, by then a bushy 10 cm tall and grow always stops our visitors in their tracks We produce the larger architectural rapidly thereafter. with its glaucous color and lovely neat sizes, such as six or seven feet high We are at present in the process of dense ball shape. B. sempervirens obelisks and one metre globes in the rooting 30,000 B. sempervirens 'Graham Blandy', despite its tendency field, along with much of the B. 'Suffruticosa' for the restoration of the to spring floppiness, is an excellent sempervirens and B. sempervirens Privy Garden at Hampton Court Palace. accent plant. We try to grow 'Graham 'Suffruticosa' hedging. Container All these have to be of exactly the same Blandy' with fairly low nutrient growing for year-round planting is a clone, of course; otherwise the unifor­ conditions to keep growth hard. must these days. Containers are placed mity would be spoilt. We have several The British gardening public is very on capillary-watered sand beds, with dwarf types from various sources which knowledgeable about the wide range of the larger containers being drip­ have distinct differences in leaf shine, plants which can be grown here, and it watered individually. bushiness, colour, habit, etc. gives every plantsman a thrill to see just Topiary and hedging are still the We consider the cultivar B. sinica one "new" item. When they visit us , main call. We cannot produce enough var. insularis 'Justin Brouwers' to be a they can see many varieties unknown to dwarf box on our premises, so we now really first class box. Buxus cv. them before. Most of these are the take cuttings from our own stock in 'Faulkner' (Does anyone know its selections and cultivars kindly supplied August, send them to be rooted under origin?) is a winter sparkler. B. to us by the ABS and your arboreta. Some topiary forms at Langley Boxwood Nursery. A boxwood rooster at Langley Boxwood Nursery. 24 October 1993 At the Hampton Court Show, Langley Boxwood's exhibit contained 50 kinds of boxwood. (Photo: The Royal Horticultural Society) The emphasis on using B uxus as a was thanks to Dr. John Creech, who Wherever possible we study box shapely shrub, selected for its natural directed us to one of the most dramatic growing wild in its native country. We and particular
Recommended publications
  • Buxus Sempervirens1
    Fact Sheet FPS-80 October, 1999 Buxus sempervirens1 Edward F. Gilman2 Introduction Long a tradition in colonial landscapes, Boxwood is a fine- textured plant familiar to most gardeners and non-gardeners alike (Fig. 1). Eventually reaching 6- to 8-feet-tall (old specimens cab be much taller), Boxwood grows slowly into a billowing mound of soft foliage. Flowers are borne in the leaf axils and are barely noticeable to the eye, but they have a distinctive aroma that irritates some people. General Information Scientific name: Buxus sempervirens Pronunciation: BUCK-sus sem-pur-VYE-renz Common name(s): Common Boxwood, Common Box, American Boxwood Family: Buxaceae Plant type: shrub USDA hardiness zones: 6 through 8 (Fig. 2) Planting month for zone 7: year round Planting month for zone 8: year round Origin: not native to North America Figure 1. Common Boxwood. Uses: border; edging; foundation; superior hedge Availablity: generally available in many areas within its Growth rate: slow hardiness range Texture: fine Description Foliage Height: 8 to 20 feet Spread: 10 to 15 feet Leaf arrangement: opposite/subopposite Plant habit: round Leaf type: simple Plant density: dense Leaf margin: entire 1.This document is Fact Sheet FPS-80, one of a series of the Environmental Horticulture Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: October, 1999 Please visit the EDIS Web site at http://edis.ifas.ufl.edu. 2.Edward F. Gilman, professor, Environmental Horticulture Department, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, 32611. The Institute of Food and Agricultural Sciences is an equal opportunity/affirmative action employer authorized to provide research, educational information and other services only to individuals and institutions that function without regard to race, color, sex, age, handicap, or national origin.
    [Show full text]
  • Cylindrocladium Buxicola Nom. Cons. Prop.(Syn. Calonectria
    I Promotors: Prof. dr. ir. Monica Höfte Laboratory of Phytopathology, Department of Crop Protection Faculty of Bioscience Engineering Ghent University Dr. ir. Kurt Heungens Institute for Agricultural and Fisheries Research (ILVO) Plant Sciences Unit - Crop Protection Dean: Prof. dr. ir. Guido Van Huylenbroeck Rector: Prof. dr. Anne De Paepe II Bjorn Gehesquière Cylindrocladium buxicola nom. cons. prop. (syn. Calonectria pseudonaviculata) on Buxus: molecular characterization, epidemiology, host resistance and fungicide control Thesis submitted in fulfillment of the requirements for the degree of Doctor (PhD) in Applied Biological Sciences III Dutch translation of the title: Cylindrocladium buxicola nom. cons. prop. (syn. Calonectria pseudonaviculata) in Buxus: moleculaire karakterisering, epidemiologie, waardplantresistentie en chemische bestrijding. Please refer to this work as follows: Gehesquière B. (2014). Cylindrocladium buxicola nom. cons. prop. (syn. Calonectria pseudonaviculata) on Buxus: molecular characterization, epidemiology, host resistance and fungicide control. Phd Thesis. Ghent University, Belgium The author and the promotors give authorisation to consult and to copy parts of this work for personal use only. Any other use is limited by Laws of Copyright. Permission to reproduce any material contained in this work should be obtained from the author. The promotors, The author, Prof. dr. ir. M. Höfte Dr. ir. K. Heungens ir. B. Gehesquière IV Een woordje van dank…. Dit dankwoord schrijven is ongetwijfeld het leukste onderdeel van deze thesis, en een mooie afsluiting van een interessante periode. Terugblikkend op de voorbije vier jaren kan ik enkel maar beamen dat een doctoraat zoveel meer is dan een wetenschappelijke uitdaging. Het is een levensreis in al zijn facetten, waarbij ik mezelf heb leren kennen in al mijn goede en slechte kantjes.
    [Show full text]
  • Boxwoods for Pennsylvania Landscapes
    Boxwoods for Pennsylvania Landscapes College of Agricultutal Sciences Agricultural Research and Cooperative Extension inter in many parts of Pennsylvania Each species contributes unique provides a stark, leafless, snow-covered characteristics, including size, color, scene among the deciduous hardwoods, insect resistance, and foliage. Common intermixed with dark green patches boxwood is a wide-spreading species of hemlock and other needle-leafed with very dense, evergreen foliage evergreens. Many homeowners look and cold tolerance to about -50F. The to enhance this beautiful scene with leaves are dark green above and yellow- 1 1 broadleaf evergreens in their landscape. green below, reaching /2" to 1 /2" in There are a number of broadleaf ever- length, and are oblong to oval in shape. green shrubs to choose from that are Japanese boxwood is a low-growing, suitable for the Pennsylvania landscape, compact, heat-tolerant shrub with including pieris, mountain laurel, leuco- bright green leaves that are elliptical 1 thoe, mahonia, pyracantha, leatherleaf to lance-shaped, and reach /4 to 1" in viburnum, rhododendron, holly, and length. Korean boxwood is a loose, boxwood. Most of these plants provide open-growing shrub that is very hardy, a rounded and spreading habit. For although the foliage may turn yellow formal gardens, hedges, or sites where a to brown in the winter. In the nursery W specific plant form is desired, Japanese and landscape trade today, numerous holly and boxwood are the most com- varieties and hybrids among these spe- mon choices. cies have been created and marketed for their unique characteristics, including Boxwoods (Buxus) are native to Europe, round, dwarf, and columnar forms, the Mediterranean, the West Indies, winter hardiness, and variegated foliage.
    [Show full text]
  • Buxus Sempervirens
    Estatges vegetals i canvi climàtic X. Armiñana i J. Bosch -17 Buxus sempervirens “Boix” Superegne: Eucariota Regne: Plantae Divisió: Magnoliophyta Classe: Magnoliopsida Ordre: Buxales Família: Buxaceae Gènere: Buxus Espècie: B. sempervirens Hàbitat: Rang altitudinal Es troben a la muntanya 100 m.s.m. – 1600 m.s.m. submediterrània Prefereix els terrenys calcaris Floració: Distribució: Maig i Abril Barcelona, Castelló, Girona, Lleida i Tarragona. Eurosiberiana (Submediterrània) Descripció: Encara que es tracti d'un arbre, normalment es troba com un arbust de menys de 5 metres d'alçària, ja que és de lent creixement i fa anys s'explotava molt la seva fusta. Fulles petites, ovades, enteres i coriàcies, verdes tot l'any (a l'hivern sovint vermelloses). Les flors poc vistoses i blanquinoses. Fruit en càpsula, amb 6 llavors, acabat en 2-4 apèndixs superiors. Estatges vegetals i canvi climàtic X. Armiñana i J. Bosch -18 Corylus avellana “Avellaner” Superegne: Eucariota Regne: Plantae Divisió: Magnoliophyta Classe: Magnoliopsida Ordre: Fagales Família: Betulaceae Gènere: Corylus Espècie: C. avellana Hàbitat: Rang altitudinal Com a arbre silvestre forma les 800 m.s.m. – 1200 m.s.m. avellanoses d'alta muntanya. A menor altitud es troba en torrenteres. Floració: Distribució: Gener, Febrer i Març. Eurosiberiana Descripció: Arbre de fins a 6 m d’alçada amb les fulles alternes, caduques i de marge serrat. El més característic d’aquesta planta són els fruits arrodonits i de color marró que són molt coneguts com a fruits secs (avellanes). Les flors masculines estan agrupades en denses inflorescències penjant (aments). Les avellanes estan envoltades entre dues bràctees verdoses que fan d’involucre.
    [Show full text]
  • Choose Specimen Topiary
    PRACTICALITY BROWN Fact sheet: Topiary We can supply a range of topiary to add some structure and decorative interest to your garden. Topiary Topiary has been used historically in many different European gardening styles, from early Roman gardens through to modern day. Topiary is the art of training plants (typically evergreen shrubs and trees) into intricate or stylized shapes and forms, which can be the culmination of years of work. Plants trained in this way will require regular maintenance to maintain the form and structure with topiary shears or hedge-cutters; suckers and unwanted branches can also be removed. The term may also be used more loosely to describe a number of garden features that rely on the close clipping and shaping of plants, including: Parterre: A style of hedging associated with lavish Italian renaissance gardens with beautifully ornate clipped box hedges swirling around them in mirrored patterns or geometric designs. Mazes and labyrinths: The Normans introduced pleasure gardens with mazes and labyrinths formed from clipped plants; there are some modern examples in private and public gardens today. Knot gardens: Formed from different coloured box planted in crisscrossing patterns so that it appeared that the ribbons of hedges had been tied up in knots, these became popular in Tudor times. Cloud Trees: This is a Japanese method of training trees and shrubs into shapes resembling clouds. From box balls to yew ‘peacocks’, topiary is versatile and striking and can be thought of as living architecture; there is always room for a clipped masterpiece! Evergreens enable the design to remain a permanent feature throughout the seasons.
    [Show full text]
  • Buxus Sempervirens (Common Boxwood) Size/Shape
    Buxus sempervirens (Common Boxwood) Boxwood has traditional landscape use, just think of old English or French gardens. Eventually reaching 1-1.5 m (back in nature its able to reach 5-8 m). Boxwood grows very slowly. It has a small evergreen ovate leaves where the venation does show at all. The leaves are about 1 cm. The flowers are born in the leaf axis but unnoticeable for the eye. Use this plant as a hedge, mass planting and the best for topiary. It needs partial sun or shade. It grows best on clay or loamy soil. On sand it requires continues irrigation plus on sand several nematodes gives trouble for the plant. Landscape Information French Name: Buis Pronounciation: BUCK-sus sem-pur-VYE-renz Plant Type: Shrub Origin: Southern Europe, Northen Africa Heat Zones: 4, 5, 6, 7, 8, 9 Hardiness Zones: 6, 7, 8 Uses: Hedge, Topiary, Specimen, Container Size/Shape Growth Rate: Slow Tree Shape: Round Canopy Symmetry: Symmetrical Canopy Density: Dense Plant Image Canopy Texture: Coarse Height at Maturity: 1.5 to 3 m Spread at Maturity: 1.5 to 3 meters Time to Ultimate Height: 20 to 50 Years Buxus sempervirens (Common Boxwood) Botanical Description Foliage Leaf Arrangement: Opposite Leaf Venation: Pinnate Leaf Persistance: Evergreen Leaf Type: Simple Leaf Blade: Less than 5 Leaf Shape: Oval Leaf Margins: Entire Leaf Textures: Glossy, Coarse Leaf Scent: No Fragance Color(growing season): Green Color(changing season): Green Flower Flower Showiness: False Flower Image Flower Size Range: 1.5 - 3 Flower Type: Capitulum Flower Sexuality: Monoecious (Bisexual)
    [Show full text]
  • A Practical Guide to Managing Box Woodlands and Trees in the Countryside
    The natural and cultural PART B heritage of A practical guide to Box woodlands and trees in managing Box woodlands the Chilterns and trees in the countryside An Area of Outstanding Natural Beauty The natural and cultural heritage of Box woodlands and trees in the Chilterns PART B A practical guide to managing Box woodlands and trees in the countryside Published by the Chilterns Conservation Board Grant-aided by the Heritage Lottery Fund Written by Sarah Wright, Chilterns Box Woodland Project Officer PART B has drawn on the assistance of volunteers, woodland owners and other supporters. Thanks to: Boxmoor Trust, Chiltern Society, European Boxwood and Topiary Society, Forestry Commission, Millennium Seed Bank Partnership Kew, National Trust, Natural England, Royal Horticultural Society, Society of Wood Engravers, Wormsley Estate. Lynn Batdorf, Colin Bradley, Clare Butler, Dorothy Cartwright, Huw Crompton, Chris Daunt, Christine Davis, Beatrice Henricot, Peter Jones, Stuart King, Keith Kirby, Andy McVeigh, Neil Melleney, Glyn Miller, Heather Barrett-Mold, Sandra Parkinson, John and Ben Pepper, Edward Raker, Sean Reid, John Trimmer. Chilterns Box Woodland Project Page No. Contents B.1 Introduction to the Chilterns Box Woodland Project and this publication 1 B.2 Managing Box woodland and trees for the future 2 B.3 Management challenges in the Chilterns 3 B.4 Managing Box trees to be healthy specimens and recognising signs of stress 4 B.5 Box management calendar 5 B.6 Managing for climate change 6 B.7 Growing Buxus sempervirens – propagation 7 B.7.1 Collecting and growing from seeds 8 B.7.1.1 Case study: Collecting Box seeds in the Chilterns for the Millennium Seed Bank, Wakehurst 8 B.7.2 Collecting and growing from cuttings 10 B.7.2.1 Case study: Collecting Box cuttings from Ellesborough and Kimble Warrens SSSI 11 B.7.2.2 Case study: Growing Box cuttings in a nursery 13 B.7.3 Propagation by layering – 'air' and buried 15 B.
    [Show full text]
  • From Biomechanics to Material Behavior of Buxus Sempervirens L
    From biomechanics to material behavior of Buxus sempervirens L. - An angiosperm forming compression wood Pierre Cabrolier, Iris Brémaud To cite this version: Pierre Cabrolier, Iris Brémaud. From biomechanics to material behavior of Buxus sempervirens L. - An angiosperm forming compression wood. 8th Plant Biomechanics International Conference, Nov 2015, Nagoya, Japan. hal-01975245 HAL Id: hal-01975245 https://hal.archives-ouvertes.fr/hal-01975245 Submitted on 9 Jan 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Cabrolier, P. & Brémaud, I. (2015). From biomechanics to material behavior of Buxus sempervirens L. -An angiosperm forming compression wood. 8th Plant Biomechanics International Conference, 30 November-4 December 2015, Nagoya, Japan From biomechanics to material behavior of Buxus sempervirens L. - An angiosperm forming compression wood Pierre Cabrolier, Iris Brémaud WOOD Team, Laboratory of Mechanics and Civil Engineering (LMGC), CNRS, Université de Montpellier, France [email protected] In general, in the gravitropic reorientation process, compression wood is associated to gymnosperms and tension wood to angiosperm. Except for very few hardwood species where compression wood have been observed, such as for example Pseudowintera colorata (Kubera and Philipson 1978; Meylan 1981), Hebe salicifolia G.
    [Show full text]
  • Vahl's Boxwood, (Buxus Vahlii Baill.): a Federally Endangered Tree of St
    Vahl’s Boxwood, (Buxus vahlii Baill.): A Federally Endangered Tree of St. Croix and Puerto Rico Michael Morgan and Thomas W. Zimmerman Agroforestry Research Specialist II, University of the Virgin Islands Agricultural Experiment Station, Kingshill, St. Croix, U.S. Virgin Islands; Research Associate Professor, Biotechnology and Agroforestry, University of the Virgin Islands Agricultural Experiment Station, Kingshill, St. Croix, U.S. Virgin Islands Abstract three other sites support populations with fewer than 500 individuals. There are also two known sites in Vahl’s boxwood (Buxus vahlii Baill.) is a federally en- Puerto Rico that support small populations of Vahl’s dangered tree that occurs on four sites in St Croix. It is boxwood (Carrera-Rivera 2001, Daley and Ray 2014, related to the European ornamental bush common box- Daley and Valiulis 2013). wood (Buxus sempervirens L.), which is often trimmed to make elaborate hedges or topiaries in temperate Vahl’s boxwood is threated by urban development climates around the world. The University of the Virgin resulting in habitat fragmentation and destruction, Islands produces containerized seedlings of Vahl’s competition with exotic plant species such as snake boxwood so they can be planted in protected areas on plant (Sansevieria trifasciata hort. ex Prain.) and the island of St. Croix. This nursery stock, once planted coral vine (Antigonon leptopus Hook. & Arn.), as well in permanent sites, will augment the number of plants as devastating human-caused wildfires. Moreover, the growing in the wild, thus reducing the possibility of species is threatened by its own reproductive biology. this rare plant species going extinct. This article de- Seed dispersion occurs when the seed capsules dry scribes the species’ characteristics and our techniques out and split.
    [Show full text]
  • Historical Cultivars of Buxus Sempervirensl. Revealed in A
    Europ.J.Hort.Sci., 74 (3). S. 130–136, 2009, ISSN 1611-4426. © Verlag Eugen Ulmer KG, Stuttgart Historical Cultivars of Buxus sempervirens L. Revealed in a Preserved 17th Century Garden by Biometry and Amplified Fragment Length Polymorphism (AFLP) P. H. Salvesen1,3), B. Kanz2,3) and D. Moe3) (1)Arboretum and Botanical Garden, University of Bergen, Norway, 2)Senckenberg Research Institute, Frankfurt am Main, Germany and 3)Natural History Collections, University of Bergen, Norway) Summary Buxus sempervirens L. extant in a preserved renais- the AFLP data, the three morphs in neighbour-joining sance parterre dating from ca. 1680 at Milde (Bergen, bootstrap analyses formed well supported clades Norway) has been provisionally classified as the (100 % BP) and in a principal coordinate analysis morphs ‘Pendula’, ‘Suffruticosa’, and ”Yellow”. These formed distinctly separated and close clusters, indicat- were thought a priori to represent distinct taxa, viz. ing that the morphs are genetically distinct and the in- cultivars. Shoot length, leaf hairiness, leaf width, leaf dividuals of each morph are closely related. Biometric curvature, and lamina width-to-length ratio measured analysis and finger printing techniques (AFLP) consist- on 30 leaves in each individual allowed separation of ently show that the three morphs are both morpholog- the morphs in discriminant analysis. In AFLP analyses ically and genetically distinct. The three morphs are 7 primer combinations yielded informative data, pro- assumed to represent genetically distinct old cultivars ducing 168 (57 %) polymorphic fragments. Based on introduced during the 17th or 18th century. Key words. boxwood parterre – Buxus sempervirens cultivars – conservation – garden history – Norway – renais- sance garden Introduction pography (FØRLAND 1993).
    [Show full text]
  • Boxwood Leafminer Monarthropalpus Flavus (Schrank) (Insecta: Diptera: Cecidomyiidae)1 Balwinder Kaur and Adam Dale2
    EENY-752 Boxwood Leafminer Monarthropalpus flavus (Schrank) (Insecta: Diptera: Cecidomyiidae)1 Balwinder Kaur and Adam Dale2 Introduction States (Hoover 2001). This small fly is native to Europe and was first detected as a pest of boxwood in the United States The first planting of boxwoods in North America were in 1910 (Felt 1910). of the common boxwood (Buxus sempervirens) and are believed to have been on a plantation in Shelter Island, New York in 1653 by Nathaniel Sylvester (Batdorf 1994). Since its introduction, this species has become among the most popular shrub produced by nurseries and planted by homeowners in eastern North America. Boxwood continues to be one of the most popular shrubs produced by nurseries and planted in urban and residential landscapes in the United States (Figure 1). This evergreen plant successfully grows in full sun to partial shade envi- ronments and provides green foliage year-round (Butzler 2017). Boxwood can be pruned heavily into different shapes or forms, making it a highly desirable plant for hedges, formal gardens, and sites where specific plant forms are Figure 1. Hedged Buxus sp. shrubs in a residential landscape. required (Batdorf 1994). Credits: Karan A. Rawlins, University of Georgia Unfortunately, boxwoods are attacked by multiple pests Synonymy such as boxwood blight (Calonectria pseudonaviculata), The species, Monarthropalpus flavus, was originally boxwood psyllids (Psylla buxi), boxwood spider mites described as Scathopse flava Geoffroy in 1764 and has (Eurytetranychus buxi), and the boxwood leafminer changed names multiple times since. Several synonyms (Monarthropalpus flavus (Schrank)). Boxwood leafminer exist, the most common of which is Monarthropalpus buxi is a yellow to orange-red gnat-like fly (Smith et al.
    [Show full text]
  • G3.9A Taxus Baccata Woodland
    European Red List of Habitats - Forests Habitat Group G3.9a Taxus baccata woodland Summary This habitat includes far-flung Taxus baccata woodlands in the Mediterranean and Atlantic regions, where this long-lived tree dominates locally on hot, rocky slopes of lime-rich rocks, often with some Sorbus aria, Ilex aquifolium and Buxus sempervirens, though, in the deep shade beneath, with usually few herbaceous associates. In both regions, particularly in the Mediterranean, there is sometimes a suggestion that the dominance of the tree is an accident of succession where, for some reason, Taxus has excluded possible subsequent invaders or remains as a relict senescent phase of some kind of beech forest. Grazing by livestock and wild herbivores can inhibit regeneration, fire can damage the woodland structure and invasive aliens change the species composition. Conservation needs control of these threats. Synthesis Overall, there are few data to provide an overall assessment of the condition of this habitat but what little there is points to Least Concern. It includes woodlands in far-flung regions with very different extent in different countries and with differing estimates of change in extent and quality in the recent past. However, with some marginal countries having small extent and in a vulnerable state, there could be a critical loss of AOO. This fragmentation and small total cover make this habitat vulnerable to future threats. Overall Category & Criteria EU 28 EU 28+ Red List Category Red List Criteria Red List Category Red List Criteria Least Concern - Least Concern - Sub-habitat types that may require further examination No sub-habitats have been distinguished for further analysis.
    [Show full text]