DOCSLIB.ORG

Crataegus Phaenopyrum

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Crataegus Phaenopyrum Crataegus phaenopyrum - Washington Hawthorn (Rosaceae) -------------------------------------------------------------------------------------------------------- Crataegus phaenopyrum is a highly ornamental, -infections of various rusts create white-orange small tree of rounded to semi-pendulous habit at protuberances on the green fruits in summer maturity. Washington Hawthorn has showy but (especially following wet springs), usually causing malodorous late spring flowers, dark green summer these infected fruits to abscise before autumn foliage, burgundy late autumn color, late autumn and Twigs early winter red fruits, fine texture, lightly exfoliating -thin twigs with small buds are red-brown and bark, and dense twigginess, that also attracts wildlife. somewhat zigzag, changing to reddish-gray on the It often has rust as a severe disease problem with age. stems and branches -the thorniness of the twigs shows great variation FEATURES within the species Form -very twiggy in appearance, and shedding small twigs -small ornamental tree continuously from self-shading -maturing at about 20' tall x 20' Trunk wide -usually either multi-trunked or single-trunked and -upright oval growth habit in branching low, but sometimes single-trunked and youth, quickly becoming limbed up into classic tree form spreading rounded to arching -bark exfoliates into thin strips to reveal a red-orange mounded with age; often multi- interior bark beneath a brown-gray exterior bark trunked, densely branched, and -branches are sometimes prone to storm damage with twiggy with numerous thorns age, a combination of the heavy fruit loads in -slow to medium growth rate autumn/winter (or ice loads that may accumulate on Culture the thin but numerous twigs) and narrow crotch -full sun to partial sun angles at some of the major branch junctures -tolerant of poor soils, various soil pHs, compacted soils, drought, heat, and winter salt spray USAGE -propagated by seeds and rooted cuttings Function -Rose Family, with several diseases and pests, most -specimen, focal point, foundation, entranceway, notably various rusts that affect the stems, foliage, border, street, group planting, or multi-season accent and fruit (especially the extremely common cedar Texture hawthorn rust and cedar quince rust) -medium-fine in foliage and fine when bare -abundantly available in clump (multi-trunk) or tree -thick density in foliage and when bare (single-trunk) forms, primarily in B&B form Assets Foliage -four-season ornamental tree with late spring white -emerging reddish, but inflorescences, autumn red fruits and burgundy leaf quickly maturing to dark color, and winter fruits and bark/twigginess/texture green and shiny on the -urban tolerant upper leaf surface, while -wildlife attraction and refuge dull medium green on the -winter salt spray tolerant lower leaf surface Liabilities -alternate, broadly ovate, -severe rust diseases (cedar hawthorn rust and cedar about 2" long, with 3 quince rust) may infect the plant yearly major lobes, with the -malodorous inflorescences in late spring terminal lobe being much -thorns on lower branches that are at pedestrian level larger than the basal 2 are a potential injury liability lobes Habitat -doubly serrated to -Zones 3 to 8 incised on the margins, with cordate bases -Native to the Southern U.S. -autumn color is burgundy to wine, occurring in late Oct.and into mid Nov., and attractive SELECTIONS Flowers Alternates -white inflorescences (about 2" wide) blanket the tree -ornamental trees with good multi-season appeal in early June (it is the last of the landscape (Amelanchier arborea, Cornus kousa, Crataegus Hawthorns to flower), effective for 2 weeks and viridis 'Winter King', Malus, etc.) extremely malodorous -trees or large shrubs serving as wildlife food sources Fruits and refuges (Crataegus crusgalli, Malus sargentii, -0.25" diameter green fruits are in pendulous clusters, Viburnum prunifolium, etc.) turning to orange by Oct. then to bright red-orange in Cultivars - Variants - Related species Nov., and often -clump (multi-trunked) and tree (single-trunked) persisting into late Jan. forms of the straight species are commonly available (if not eaten by wildlife Crataegus 'Vaughn' - Vaughn Hawthorn - a hybrid before then) between Cockspur Hawthorn (C. crusgalli) and -clusters of many Washington Hawthorn (C. phaenopyrum), more pendulous small red upright and less thorny than either of its parents, with fruits make this one of abundant fruits of intermediate size, but of low the most attractive commercial availability, noted for its salt spray ornamental trees in early tolerance, and effectively used as a street median or winter island parking lot tree in addition to the other -fruits are readily eaten functions noted above by birds and squirrels.
Load more

Recommended publications
  • Cockspur Hawthorn Grows from Southern Quebec, and Ontario to Northern Louisiana, Alabama and Northwestern Georgia, and West to Kansas
    Plant Guide COCKSPUR Status Please consult the PLANTS Web site and your State HAWTHORN Department of Natural Resources for this plant’s current status, such as, state noxious status, and Crataegus crus-galli L. wetland indicator values. Plant Symbol = CRCR2 Description Contributed By: USDA NRCS National Plant Data General: It is a small tree that grows twenty to thirty Center feet high, twenty to thirty-five feet wide; with wide- spreading, horizontal, thorny branches. Leaves are broadest above or near the middle, thick, leathery, shiny dark green above, usually not lobed, and smooth. Flowers ranging from white to red are produced in clusters. Fruits are broadest above the middle or rounded, dull red or green. Distribution: Cockspur hawthorn grows from southern Quebec, and Ontario to northern Louisiana, Alabama and northwestern Georgia, and west to Kansas. Adaptation Although Cockspur hawthorn generally requires no special soil requirements, it prefers a moist, well- drained, slightly acid soils, and full sunlight. It is adaptable to poor soils; various soil pHs, compacted soils, drought, heat and winter salt spray. Adapted to USDA Hardiness Zone 4. Establishment Propagation from Seed or Grafting: Cockspur hawthorn can be propagated by seeds or by stem Native Trees of Texas Department of Horticulture cuttings grafted onto seedling rootstock. Propagation Texas A&M University using seeds requires acid scarification for two to Uses three hours followed by three months warm Erosion Control: Because it tolerates a wide variety stratification and another three months prechilling. of sites, it can be planted to stabilize banks, for Seeds are planted in drill rows eight to twelve inches shelterbelts, and for erosion control.
    [Show full text]
  • Shrub List for Brighton 2010
    Shrub List For Brighton 2010 Large Shrubs 10’ -20’ Tall by 6’ – 25’ wide Acer ginnala Amur Maple Acer tataricum Tatarian Maple (better than Amur Maple) Acer grandidentatum Bigtooth Maple Amelanchier alnifolia Saskatoon Serviceberry Amelanchier canadensis Shadblow Serviceberry Caragana arborescens Siberian Peashrub Cercocarpus ledifolius Mountain Mahogany Cotoneaster lucidus Peking Cotoneaster Cowania mexicana Quince Bush, Cliffrose Crataefus ambigua Russian Hawthorn Forestiera neomexicana New Mexican Privet Hippophae rhamnoides Sea Buckthorn Juniperus species Juniper Kolkwitzia amabilis Beauty Bush Pinus mugo Mugo Pine species Prunus americana American Plum Prunus virginiana ‘Shubert’ Canada Red Chokecherry Ptelea trifoliata Wafer Ash or Hop tree Quercus gambelii Gambel Oak Rhus typhina Staghorn Sumac Robinia neomexicana New Mexico Locust Sambucus species Elders Shepherdia argentea Buffaloberry Syringa vulgaris Common Lilac Viburnum lantana Wayfaring Tree, Viburnum Medium Size Shrubs >10’ high by >8’ wide Amorpha fruticosa False Indigo Atriplex canescens Fourwing Saltbush Buddleia davidii Butterfly Bush Cercocarpus montanus Mountain Mahogany Chamaebatiaria millefolium Fernbush Chrysothamnus nauseosus Rubber Rabbitbrush Cornus sericea Redtwig Dogwood Cotinus coggygria Smoke Tree Cotoneaster species Cotoneaster Cytisus scoparius ‘Moonlight’ Moonlight Broom Euonymus alatus Burning Bush Forsythia x intermedia Forsythia Hibiscus syriacus Rose-of-Sharon Juniperus species Juniper Ligustrum vulgare Privet Lonicera species Honeysuckle Mahonia aquifolium Oregon Grape Holly Philadelphus species Mockorange Pyracantha coccinea Firethorn Physocarpus opulifolius Common Ninebark Prunus besseyi Western Sand Cherry Pyracantha coccinea species Firethorn Rhamnus frangula Glossy Buckthorn Ribes species Currant Sambucus species Elder Spiraea x vanhouttei Vanhouttei Spirea Symphoricarpos albus Snowberry Syringa meyeri „Palibin‟ Dwarf Korean Lilac Syringa patula „Miss Kim‟ Dwarf Lilac Viburnum species (dozens of different types) Small Size Shrubs > 5’ tall by >6.
    [Show full text]
  • "National List of Vascular Plant Species That Occur in Wetlands: 1996 National Summary."
    Intro 1996 National List of Vascular Plant Species That Occur in Wetlands The Fish and Wildlife Service has prepared a National List of Vascular Plant Species That Occur in Wetlands: 1996 National Summary (1996 National List). The 1996 National List is a draft revision of the National List of Plant Species That Occur in Wetlands: 1988 National Summary (Reed 1988) (1988 National List). The 1996 National List is provided to encourage additional public review and comments on the draft regional wetland indicator assignments. The 1996 National List reflects a significant amount of new information that has become available since 1988 on the wetland affinity of vascular plants. This new information has resulted from the extensive use of the 1988 National List in the field by individuals involved in wetland and other resource inventories, wetland identification and delineation, and wetland research. Interim Regional Interagency Review Panel (Regional Panel) changes in indicator status as well as additions and deletions to the 1988 National List were documented in Regional supplements. The National List was originally developed as an appendix to the Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al.1979) to aid in the consistent application of this classification system for wetlands in the field.. The 1996 National List also was developed to aid in determining the presence of hydrophytic vegetation in the Clean Water Act Section 404 wetland regulatory program and in the implementation of the swampbuster provisions of the Food Security Act. While not required by law or regulation, the Fish and Wildlife Service is making the 1996 National List available for review and comment.
    [Show full text]
  • Scientific Name Species Common Name Abies Lasiocarpa FIR Subalpine Acacia Macracantha ACACIA Long-Spine
    Scientific Name Species Common Name Abies lasiocarpa FIR Subalpine Acacia macracantha ACACIA Long-spine Acacia roemeriana CATCLAW Roemer Acer grandidentatum MAPLE Canyon Acer nigrum MAPLE Black Acer platanoides MAPLE Norway Acer saccharinum MAPLE Silver Aesculus pavia BUCKEYE Red Aesculus sylvatica BUCKEYE Painted Ailanthus altissima AILANTHUS Tree-of-heaven Albizia julibrissin SILKTREE Mimosa Albizia lebbek LEBBEK Lebbek Alnus iridis ssp. sinuata ALDER Sitka Alnus maritima ALDER Seaside Alvaradoa amorphoides ALVARADOA Mexican Amelanchier laevis SERVICEBERRY Allegheny Amyris balsamifera TORCHWOOD Balsam Annona squamosa SUGAR-APPLE NA Araucaria cunninghamii ARAUCARIA Cunningham Arctostaphylos glauca MANZANITA Bigberry Asimina obovata PAWPAW Bigflower Bourreria radula STRONGBACK Rough Brasiliopuntia brasiliensis PRICKLY-PEAR Brazilian Bursera simaruba GUMBO-LIMBO NA Caesalpinia pulcherrima FLOWERFENCE NA Capparis flexuosa CAPERTREE Limber CRUCIFIXION- Castela emoryi THORN NA Casuarina equisetifolia CASUARINA Horsetail Ceanothus arboreus CEANOTHUS Feltleaf Ceanothus spinosus CEANOTHUS Greenbark Celtis lindheimeri HACKBERRY Lindheimer Celtis occidentalis HACKBERRY Common Cephalanthus occidentalis BUTTONBUSH Common Cercis canadensis REDBUD Eastern Cercocarpus traskiae CERCOCARPUS Catalina Chrysophyllum oliviforme SATINLEAF NA Citharexylum berlandieri FIDDLEWOOD Berlandier Citrus aurantifolia LIME NA Citrus sinensis ORANGE Orange Coccoloba uvifera SEAGRAPE NA Colubrina arborescens COLUBRINA Coffee Colubrina cubensis COLUBRINA Cuba Condalia globosa
    [Show full text]
  • Native Trees of Georgia
    1 NATIVE TREES OF GEORGIA By G. Norman Bishop Professor of Forestry George Foster Peabody School of Forestry University of Georgia Currently Named Daniel B. Warnell School of Forest Resources University of Georgia GEORGIA FORESTRY COMMISSION Eleventh Printing - 2001 Revised Edition 2 FOREWARD This manual has been prepared in an effort to give to those interested in the trees of Georgia a means by which they may gain a more intimate knowledge of the tree species. Of about 250 species native to the state, only 92 are described here. These were chosen for their commercial importance, distribution over the state or because of some unusual characteristic. Since the manual is intended primarily for the use of the layman, technical terms have been omitted wherever possible; however, the scientific names of the trees and the families to which they belong, have been included. It might be explained that the species are grouped by families, the name of each occurring at the top of the page over the name of the first member of that family. Also, there is included in the text, a subdivision entitled KEY CHARACTERISTICS, the purpose of which is to give the reader, all in one group, the most outstanding features whereby he may more easily recognize the tree. ACKNOWLEDGEMENTS The author wishes to express his appreciation to the Houghton Mifflin Company, publishers of Sargent’s Manual of the Trees of North America, for permission to use the cuts of all trees appearing in this manual; to B. R. Stogsdill for assistance in arranging the material; to W.
    [Show full text]
  • Amelanchierspp. Family: Rosaceae Serviceberry
    Amelanchier spp. Family: Rosaceae Serviceberry The genus Amelanchier contains about 16 species native to North America [5], Mexico [2], and Eurasia to northern Africa [4]. The word amelanchier is derived from the French common name amelanche of the European serviceberry, Amelanchier ovalis. Amelanchier alnifolia-juneberry, Pacific serviceberry, pigeonberry, rocky mountain servicetree, sarvice, sarviceberry, saskatoon, saskatoon serviceberry, western service, western serviceberry , western shadbush Amelanchier arborea-Allegheny serviceberry, apple shadbush, downy serviceberry , northern smooth shadbush, shadblow, shadblown serviceberry, shadbush, shadbush serviceberry Amelanchier bartramiana-Bartram serviceberry Amelanchier canadensis-American lancewood, currant-tree, downy serviceberry, Indian cherry, Indian pear, Indian wild pear, juice plum, juneberry, may cherry, sugar plum, sarvice, servicetree, shadberry, shadblow, shadbush, shadbush serviceberry, shadflower, thicket serviceberry Amelanchier florida-Pacific serviceberry Amelanchier interior-inland serviceberry Amelanchier sanguinea-Huron serviceberry, roundleaf juneberry, roundleaf serviceberry , shore shadbush Amelanchier utahensis-Utah serviceberry Distribution In North America throughout upper elevations and temperate forests. The Tree Serviceberry is a shrub or tree that reaches a height of 40 ft (12 m) and a diameter of 2 ft (0.6 m). It grows in many soil types and occurs from swamps to mountainous hillsides. It flowers in early spring, producing delicate white flowers, making
    [Show full text]
  • Garden Mastery Tips March 2006 from Clark County Master Gardeners
    Garden Mastery Tips March 2006 from Clark County Master Gardeners Flowering Quince Flowering quince is a group of three hardy, deciduous shrubs: Chaenomeles cathayensis, Chaenomeles japonica, and Chaenomeles speciosa. Native to eastern Asia, flowering quince is related to the orchard quince (Cydonia oblonga), which is grown for its edible fruit, and the Chinese quince (Pseudocydonia sinensis). Flowering quince is often referred to as Japanese quince (this name correctly refers only to C. japonica). Japonica is often used regardless of species, and flowering quince is still called Japonica by gardeners all over the world. The most commonly cultivated are the hybrid C. superba and C. speciosa, not C. japonica. Popular cultivars include ‘Texas Scarlet,’ a 3-foot-tall plant with red blooms; ‘Cameo,’ a double, pinkish shrub to five feet tall; and ‘Jet Trail,’ a white shrub to 3 feet tall. Flowering quince is hardy to USDA Zone 4 and is a popular ornamental shrub in both Europe and North America. It is grown primarily for its bright flowers, which may be red, pink, orange, or white. The flowers are 1 to 2 inches in diameter, with five petals, and bloom in late winter or early spring. The glossy dark green leaves appear soon after flowering and turn yellow or red in autumn. The edible quince fruit is yellowish-green with reddish blush and speckled with small dots. The fruit is 2 to 4 inches in diameter, fragrant, and ripens in fall. The Good The beautiful blossoms of flowering quince Flowering quince is an easy-to-grow, drought-tolerant shrub that does well in shady spots as well as sun (although more sunlight will produce better flowers).
    [Show full text]
  • Scientific Update on the Iodine Content of Portuguese Foods Scientific Update on the Iodine Content of Portuguese Foods Abstract
    Scientific update on the iodine content of Portuguese foods Scientific update on the iodine content of Portuguese foods Abstract Iodine is an essential trace element in human and animal diets. However, mild to moderate iodine deficiency has been reported in several countries. Food is the natural source of iodine. Detectable analytical values, expressed in SI units (μg/kg), are required to guarantee reliable measurement results used to estimate iodine intake over time at national and international level. The aim of this work, conducted as an activity of the WHO Collaborating Centre for Nutrition and Childhood Obesity, was to develop a database of the iodine content of foods in order to predict nutritional adequacy of dietary intake. This database may be used as a tool to promote iodine intake through consumption of foods rich in iodine. Keywords IODINE DIET FOOD FOOD ANALYSIS NUTRITIONAL STATUS PORTUGAL Address requests about publications of the WHO Regional Office for Europe to: Publications WHO Regional Office for Europe UN City, Marmorvej 51 DK-2100 Copenhagen Ø, Denmark Alternatively, complete an online request form for documentation, health information, or for permission to quote or translate, on the Regional Office website (http://www.euro.who.int/pubrequest). © World Health Organization 2018 All rights reserved. The Regional Office for Europe of the World Health Organization welcomes requests for permission to reproduce or translate its publications, in part or in full. The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.
    [Show full text]
  • Chaenomeles Speciosa) in the Naxi and Tibetan Highlands of NW Yunnan, China
    Cultural and Ecosystem Services of Flowering Quince (Chaenomeles speciosa) in the Naxi and Tibetan Highlands of NW Yunnan, China. Authors: Lixin Yang, Selena Ahmed, John Richard Stepp, Yanqinag Zhao, Ma Jun Zeng, Shengji Pei, Dayuan Xue, and Gang Xu The final publication is available at Springer via https://dx.doi.org/10.1007/s12231-015-9318-7. Yang, Lixin, Selena Ahmed, John Richard Stepp, Yanqinag Zhao, Ma Jun Zeng, Shengji Pei, Dayuan Xue, and Gang Xu. “Cultural Uses, Ecosystem Services, and Nutrient Profile of Flowering Quince (Chaenomeles Speciosa) in the Highlands of Western Yunnan, China.” Economic Botany 69, no. 3 (September 2015): 273–283. doi:10.1007/s12231-015-9318-7. Made available through Montana State University’s ScholarWorks scholarworks.montana.edu Cultural Uses, Ecosystem Services, and Nutrient Profile Chaenomeles speciosa of Flowering Quince ( ) in the Highlands 1 of Western Yunnan, China 2,3 3,4 ,3,5 6 LIXIN YANG ,SELENA AHMED ,JOHN RICHARD STEPP* ,YANQINAG ZHAO , 7 2 ,3 2 MA JUN ZENG ,SHENGJI PEI ,DAYUAN XUE* , AND GANG XU 2State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institutes of Botany, Chinese Academy of Sciences, Kunming, China 3College of Life and Environmental Science, Minzu University of China, Beijing, China 4Department of Health and Human Development, Montana State University, Bozeman, MT, USA 5Department of Anthropology, University of Florida, Gainesville, FL, USA 6College of Forestry and Vocational Technology in Yunnan, Kunming, China 7Southwest Forestry University, Bailongshi, Kunming, China *Corresponding author; e-mail: [email protected]; [email protected] Introduction ample light but is tolerant of partial shade.
    [Show full text]
  • State of New York City's Plants 2018
    STATE OF NEW YORK CITY’S PLANTS 2018 Daniel Atha & Brian Boom © 2018 The New York Botanical Garden All rights reserved ISBN 978-0-89327-955-4 Center for Conservation Strategy The New York Botanical Garden 2900 Southern Boulevard Bronx, NY 10458 All photos NYBG staff Citation: Atha, D. and B. Boom. 2018. State of New York City’s Plants 2018. Center for Conservation Strategy. The New York Botanical Garden, Bronx, NY. 132 pp. STATE OF NEW YORK CITY’S PLANTS 2018 4 EXECUTIVE SUMMARY 6 INTRODUCTION 10 DOCUMENTING THE CITY’S PLANTS 10 The Flora of New York City 11 Rare Species 14 Focus on Specific Area 16 Botanical Spectacle: Summer Snow 18 CITIZEN SCIENCE 20 THREATS TO THE CITY’S PLANTS 24 NEW YORK STATE PROHIBITED AND REGULATED INVASIVE SPECIES FOUND IN NEW YORK CITY 26 LOOKING AHEAD 27 CONTRIBUTORS AND ACKNOWLEGMENTS 30 LITERATURE CITED 31 APPENDIX Checklist of the Spontaneous Vascular Plants of New York City 32 Ferns and Fern Allies 35 Gymnosperms 36 Nymphaeales and Magnoliids 37 Monocots 67 Dicots 3 EXECUTIVE SUMMARY This report, State of New York City’s Plants 2018, is the first rankings of rare, threatened, endangered, and extinct species of what is envisioned by the Center for Conservation Strategy known from New York City, and based on this compilation of The New York Botanical Garden as annual updates thirteen percent of the City’s flora is imperiled or extinct in New summarizing the status of the spontaneous plant species of the York City. five boroughs of New York City. This year’s report deals with the City’s vascular plants (ferns and fern allies, gymnosperms, We have begun the process of assessing conservation status and flowering plants), but in the future it is planned to phase in at the local level for all species.
    [Show full text]
  • Checklist of Illinois Native Trees
    Technical Forestry Bulletin · NRES-102 Checklist of Illinois Native Trees Jay C. Hayek, Extension Forestry Specialist Department of Natural Resources & Environmental Sciences Updated May 2019 This Technical Forestry Bulletin serves as a checklist of Tree species prevalence (Table 2), or commonness, and Illinois native trees, both angiosperms (hardwoods) and gym- county distribution generally follows Iverson et al. (1989) and nosperms (conifers). Nearly every species listed in the fol- Mohlenbrock (2002). Additional sources of data with respect lowing tables† attains tree-sized stature, which is generally to species prevalence and county distribution include Mohlen- defined as having a(i) single stem with a trunk diameter brock and Ladd (1978), INHS (2011), and USDA’s The Plant Da- greater than or equal to 3 inches, measured at 4.5 feet above tabase (2012). ground level, (ii) well-defined crown of foliage, and(iii) total vertical height greater than or equal to 13 feet (Little 1979). Table 2. Species prevalence (Source: Iverson et al. 1989). Based on currently accepted nomenclature and excluding most minor varieties and all nothospecies, or hybrids, there Common — widely distributed with high abundance. are approximately 184± known native trees and tree-sized Occasional — common in localized patches. shrubs found in Illinois (Table 1). Uncommon — localized distribution or sparse. Rare — rarely found and sparse. Nomenclature used throughout this bulletin follows the Integrated Taxonomic Information System —the ITIS data- Basic highlights of this tree checklist include the listing of 29 base utilizes real-time access to the most current and accept- native hawthorns (Crataegus), 21 native oaks (Quercus), 11 ed taxonomy based on scientific consensus.
    [Show full text]
  • Original Research Article
    1 Original Research Article 2 3 THE MALOIDEAE (ROSACEAE) STRUCTURAL AND FUNCTIONAL FEATURES 4 DETERMINING PASSIVE IMMUNITY TO MYCOSIS 5 6 7 With the help of microscopic methods the leaves and fruits surface tissues of plants of four 8 genera of the Maloideae subfamily were screened: Malus Mill., Pyrus L., Cydonia Mill., 9 Mespilus L., as model objects, and attempts were made to explain the dependence of mycosis 10 damage on microstructural features. The species composition of fungi that cause damage to the 11 Maloideae leaves and fruits in the Russia southern regions is analyzed. It is established that 12 among pathogens with different types of parasitism there are common excitants, as well as 13 highly specialized, more represented on Mespilus germanica. Higher resistance to the complex 14 of fungal diseases, in comparison with apple and pear, was found in quince and medlar. This 15 stability at the initial stage of the pathological process is associated with structural features such 16 as micromorphology of the fruits and stomata cuticle in the abaxial leaves epidermis. The leaves 17 stomatal cracks of the medlar are narrow with raised outgrowths, on the surface of the fruit – the 18 layered structure of the cuticular layer. Quince has a powerful continuous cuticular cover. 19 Compared with Malus and Pyrus, Cydonia and Mespilus also have a large (30 % or more) 20 polyphenol content in the pericarp outer layer cells. In addition to the gender-specific differences 21 in the microstructure of the integumentary tissues and the content of polyphenols affecting the 22 resistance to pathogens at the stage of their penetration, general patterns of leaf surface 23 formation, such as hypostomacy, anomocytic stomata, folded microrelief of the cuticular surface, 24 and the presence of single and multicellular trichomes are noted.
    [Show full text]