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Ulmus
Elms are deciduous and semi-deciduous trees comprising the genus ''Ulmus'' in the family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical- montane regions of North America and Eurasia, presently ranging southward in the Middle East to Lebanon and Israel,Flora of Israel OnlineUlmus minor Mill. , Flora of Israel Online accessdate: July 28, 2020 and across the Equator in the Far East into Indonesia.Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) Flora of China'', Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, US. Elms are components of many kinds of natural forests. Moreover, during the 19th and early 20th centuries, many species and cultivars were also planted as ornamental street, garden, and park trees in Europe, North America, and parts of the Southern Hemisphere, notably Australasia. Some individual elms reached great size ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Elm Synonyms And Accepted Names
Synonym References {{Reflist *Bean, W. J. (1981). ''Trees and shrubs hardy in Great Britain'', 7th edition. Murray, London. *Brummitt, R. K. (1992). ''Vascular Plant Families & Genera''. Royal Botanic Garden, Kew, London, UK. *Elwes, H. J. & Henry, A. (1913). ''The Trees of Great Britain & Ireland''. Vol. VII. pp 1848–1929. Private publicatio*Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) ''Flora of China'', Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA*Masters, W. (1831)''Hortus Duroverni'' 1831. Longman, Rees, Orme, Brown & Green, London. *Melville, R. & Heybroek, H. (1971). Elms of the Himalaya. ''Kew Bulletin, Vol. 26 (1)''. Kew, London. *Richens, R. H. (1983). ''Elm''. Cambridge University Press. Ulmus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Elm Cultivars, Hybrids And Hybrid Cultivars
The starting-points for List of elm cultivars, hybrids and hybrid cultivars were fourfold: (1) Peter Shaw Green, Green's 'Registration of Cultivar Names in ''Ulmus'' ' (1964), based on the contemporary nomenclature of elm species and wild hybrids; (2) Johann Gerd Krüssmann, Krüssmann's confirmation or correction of cultivar-names in his monumental ''Handbuch der Laubgehölze'' (1976); (3) Hans Heybroek, Heybroek's table of Netherlands research clones in his essay 'Resistant elms for Europe' (1983; updated to include North American cultivars, 1996); and (4) Santamour and Bentz's 'Updated Checklist of Elm (Ulmus) Cultivars for use in North America' (1995). Since the 1990s there have been many new cultivars, some 'disease-resistant', either species cultivars (e.g. Ulmus minor 'Ademuz', ''U. minor'' 'Ademuz', Ulmus americana 'New Harmony', ''U. americana'' 'New Harmony') or cultivars with complex hybrid origins, the subject of ongoing trials. Information on these is taken from post-1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus Minor
''Ulmus minor'' Mill., the field elm, is by far the most polymorphic of the European species, although its taxonomy remains a matter of contention. Its natural range is predominantly south European, extending to Asia Minor and Iran; its northern outposts are the Baltic islands of Öland and Gotland, although it may have been introduced by humans. The tree's typical habitat is low-lying forest along the main rivers, growing in association with oak and ash, where it tolerates summer floods as well as droughts.Heybroek, H. M., Goudzwaard, L, Kaljee, H. (2009). ''Iep of olm, karakterboom van de Lage Landen'' (:Elm, a tree with character of the Low Countries). KNNV, Uitgeverij. Current treatment of the species owes much to Richens, who noted (1983) that several varieties of field elm are distinguishable on the European mainland. Of these, he listed the small-leaved ''U. minor'' of France and Spain; the narrow-leaved ''U. minor'' of northern and central Italy; the densely hairy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Elm Species
''Ulmus'' subgenera and sectional classification Classification of ''Ulmus'' is based primarily on Whittemore ''et al'' 2021. Previous ''Ulmus'' classifications include Wiegrefe ''et al'' 1994, and Melville & Heybroek 1971.Melville, R. & Heybroek, H. (1971). Elms of the Himalaya. ''Kew Bulletin, Vol. 26 (1)''. Kew, London. *Subgenus ''Indoptelea'' **'' Ulmus villosa'' - marn or cherry bark elm *Subgenus ''Oreoptelea'' **''U.'' section ''Blepharocarpus'' ***''Ulmus americana'' - American elm, white elm ***'' Ulmus laevis'' - European white elm, fluttering elm, spreading elm, (US) Russian elm **** ''Ulmus laevis'' var. ''celtidea'' **** ''Ulmus laevis'' var. ''laevis'' **** ''Ulmus laevis'' var. ''parvifolia'' **** ''Ulmus laevis'' var. ''simplicidens'' **''U.'' section ''Chaetoptelea'' ***'' Ulmus alata'' - winged elm, Wahoo ***'' Ulmus crassifolia'' - cedar elm ***'' Ulmus elongata'' - long raceme elm ***'' Ulmus ismaelis'' ***'' Ulmus mexicana'' - Mexican elm ***'' Ulmus serotina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmaceae
The Ulmaceae () are a family (biology), family of flowering plants that includes the elms (genus ''Ulmus''), and the zelkovas (genus ''Zelkova''). Members of the family are widely distributed throughout the Temperate, north temperate zone, and have a scattered distribution elsewhere except for Australasia. The family was formerly sometimes treated to include the Celtis, hackberries, (''Celtis'' and allies), but an analysis by the Angiosperm Phylogeny Group suggests that these genera are better placed in the related family Cannabaceae. It generally is considered to include ca 7 genera and about 45 species. Some classifications also include the genus ''Ampelocera''. Description The family is a group of evergreen or deciduous trees and shrubs with mucilage, mucilaginous substances in leaf and bark tissue. Leaf, Leaves are usually alternate on the stems. The leaf blades are simple (not compound), with entire (smooth) or variously toothed margins, and often have an asymmetrical base. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Coker
East Coker is a village and civil parish in Somerset, England. Its nearest town is Yeovil, to the north. The village has a population of 1,667. The parish includes the hamlets and areas of North Coker, Burton, Holywell, Coker Marsh, Darvole, Nash, Keyford as well as the southern end of the Wraxhill area. History A Roman villa was discovered in East Coker in the 18th century and subsequent excavation has discovered artefacts including a mosaic; however, further work is needed to fully identify the plan of the building. In the Domesday Book of 1086 the villages of West and East Coker were known as ''Cocre''. The parish was part of the hundred of Houndsborough. The Manor of East Coker was held by the Courtenay family of Powderham from 1306 until 1591. They built Coker Court as the manor house which was eventually sold to Edward Phelips, a wealthy landowner in the region. Upon Edward's death, the manor was left to his trustee, William Helyar, whose family it descended in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samara (fruit)
A samara (, ) is a winged achene, a type of fruit in which a flattened wing of fibrous, papery tissue develops from the ovary wall. A samara is a Simple fruit, simple dry fruits, dry fruit, and is Dehiscence (botany), indehiscent (not Dehiscence (botany), opening along a seam). The shape of a samara enables the wind to carry the seed further away from the tree than regular seeds would go, and is thus a form of anemochory. In some cases the seed is in the centre of the wing, as in the elms (genus ''Ulmus''), the hoptree (''Ptelea trifoliata''), and the bushwillows (genus ''Combretum''). In other cases the seed is on one side, with the wing extending to the other side, making the seed autorotation (helicopter), autorotate as it falls, as in the maples (genus ''Acer (plant), Acer'') and ash trees (genus ''Fraxinus''). There are also single-wing samara such as mahogany (genus Swietenia) which have a shape that enables fluttering. Some species that normally produce paired samaras, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaves
A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf, but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. The leaf is an integral part of the stem system, and most leaves are flattened and have distinct upper ( adaxial) and lower ( abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax, and other features. Leaves are mostly green in color due to the presence of a compound called chlorop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermaphroditic
A hermaphrodite () is a sexually reproducing organism that produces both male and female gametes. Animal species in which individuals are either male or female are gonochoric, which is the opposite of hermaphroditic. The individuals of many taxonomic groups of animals, primarily invertebrates, are hermaphrodites, capable of producing viable gametes of both sexes. In the great majority of tunicates, mollusks, and earthworms, hermaphroditism is a normal condition, enabling a form of sexual reproduction in which either partner can act as the female or male. Hermaphroditism is also found in some fish species, but is rare in other vertebrate groups. Most hermaphroditic species exhibit some degree of self-fertilization. The distribution of self-fertilization rates among animals is similar to that of plants, suggesting that similar pressures are operating to direct the evolution of selfing in animals and plants. A rough estimate of the number of hermaphroditic animal species is 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apetalous
Petals are modified leaves that form an inner whorl surrounding the reproductive parts of flowers. They are often brightly coloured or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usually surrounded by an outer whorl of modified leaves called sepals, that collectively form the ''calyx'' and lie just beneath the corolla. The calyx and the corolla together make up the perianth, the non-reproductive portion of a flower. When the petals and sepals of a flower are difficult to distinguish, they are collectively called tepals. Examples of plants in which the term ''tepal'' is appropriate include genera such as ''Aloe'' and ''Tulipa''. Conversely, genera such as ''Rosa'' and ''Phaseolus'' have well-distinguished sepals and petals. When the undifferentiated tepals resemble petals, they are referred to as "petaloid", as in petaloid monocots, orders of monocots with brightly coloured tepals. Since they include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perfect Flower
Plant reproductive morphology is the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction. Among all living organisms, flowers, which are the reproductive structures of angiosperms, are the most varied physically and show a correspondingly great diversity in methods of reproduction. Plants that are not flowering plants (green algae, mosses, liverworts, hornworts, ferns and gymnosperms such as conifers) also have complex interplays between morphological adaptation and environmental factors in their sexual reproduction. The breeding system, or how the sperm from one plant fertilizes the ovum of another, depends on the reproductive morphology, and is the single most important determinant of the genetic structure of nonclonal plant populations. Christian Konrad Sprengel (1793) studied the reproduction of flowering plants and for the first time it was understood that the pollination process in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apex
The apex is the highest point of something. The word may also refer to: Arts and media Fictional entities * Apex (comics) A-Bomb Abomination Absorbing Man Abraxas Abyss Abyss is the name of two characters appearing in American comic books published by Marvel Comics. Nils Styger Abyss is a mutant and the half-brother of Nightcrawler (character) ..., a teenaged super villainess in the Marvel Universe * Ape-X, a super-intelligent ape in the Squadron Supreme universe *Apex, a genetically engineered human population in the TV series ''The Crossing'' * APEX Medical Hospital, a fictional hospital in the Filipino TV series '' Abot-Kamay na Pangarap'' Music * ''Apex'' (album), by Canadian heavy metal band Unleash the Archers * Apex (band), a Polish heavy metal band * Apex (musician) (1981–2017), British drum and bass music producer and DJ * The Apex Theory, the former name of the alternative rock band Mt. Helium *Lord Apex, a rapper from West London, UK Vid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
