Ulmus lamellosa
Encyclopedia
Ulmus lamellosa, commonly called the Hebei Elm, is a small deciduous
tree native to four Chinese provinces, Hebei
, Henan
, Nei Mongol, and Shanxi
, to the west and south of Beijing
.
. Considered closely related to the Large-fruited Elm
U. macrocarpa, it is distinguishable from that species by its mottled, flaking bark and smaller leaves. The leaves, on 3 mm - 8 mm petioles, are obovate
, < 10 cm long by 5.5 cm wide, caudate
at the apex, with simply to doubly serrate margins, and densely pubescent when young; the leaves turn a rich gold in autumn.
The perfect wind-pollinated apetalous flowers are produced on second-year shoots in March - April; the large < 35 mm diameter samarae
appear from April to May.
, Illinois
, U. lamellosa was found to have a good resistance to Dutch elm disease
.
The species was also found to be among the least suitable elms for feeding and reproduction by the adult elm leaf beetle Xanthogaleruca luteola
http://www.sunshinenursery.com/survey.htm http://www.bioone.org/doi/full/10.1603/0022-0493%282001%29094%5B0162%3AROTCEU%5D2.0.CO%3B2 and feeding by the Japanese Beetle Popillia japonica http://www.bioone.org/doi/full/10.1603/0022-0493%282001%29094%5B0445%3APOTCEU%5D2.0.CO%3B2 in the USA.
Although known to propagate satisfactorily, U. lamellosa is only very rarely found in commerce in Europe
and the USA; there are no known cultivar
s.
Europe
Deciduous
Deciduous means "falling off at maturity" or "tending to fall off", and is typically used in reference to trees or shrubs that lose their leaves seasonally, and to the shedding of other plant structures such as petals after flowering or fruit when ripe...
tree native to four Chinese provinces, Hebei
Hebei
' is a province of the People's Republic of China in the North China region. Its one-character abbreviation is "" , named after Ji Province, a Han Dynasty province that included what is now southern Hebei...
, Henan
Henan
Henan , is a province of the People's Republic of China, located in the central part of the country. Its one-character abbreviation is "豫" , named after Yuzhou , a Han Dynasty state that included parts of Henan...
, Nei Mongol, and Shanxi
Shanxi
' is a province in Northern China. Its one-character abbreviation is "晋" , after the state of Jin that existed here during the Spring and Autumn Period....
, to the west and south of Beijing
Beijing
Beijing , also known as Peking , is the capital of the People's Republic of China and one of the most populous cities in the world, with a population of 19,612,368 as of 2010. The city is the country's political, cultural, and educational center, and home to the headquarters for most of China's...
.
Description
A slow growing tree rarely exceeding 10 m in height, U. lamellosa is often multi-stemmed, its upright branches forming a rounded crown, but occasionally forms a single, slender trunk < 20 cm d.b.hDiameter at breast height
Diameter at breast height, or DBH, is a standard method of expressing the diameter of the trunk or bole of a standing tree. DBH is one of the most common dendrometric measurements....
. Considered closely related to the Large-fruited Elm
Large-fruited Elm
The Large-fruited Elm Ulmus macrocarpa Hance is a deciduous tree or large shrub endemic to the Far East excluding Japan. It is notable for its tolerance of drought and extreme cold and is the predominant vegetation on the dunes of the Korqin sandy lands in the Jilin province of north-eastern China,...
U. macrocarpa, it is distinguishable from that species by its mottled, flaking bark and smaller leaves. The leaves, on 3 mm - 8 mm petioles, are obovate
Leaf shape
In botany, leaf shape is characterised with the following terms :* Acicular : Slender and pointed, needle-like* Acuminate : Tapering to a long point...
, < 10 cm long by 5.5 cm wide, caudate
Caudate
Caudate can refer to:* Caudate nucleus* Caudate lobe of liver* Cauda equina* Members of the Caudata order....
at the apex, with simply to doubly serrate margins, and densely pubescent when young; the leaves turn a rich gold in autumn.
The perfect wind-pollinated apetalous flowers are produced on second-year shoots in March - April; the large < 35 mm diameter samarae
Samara (fruit)
A samara is a type of fruit in which a flattened wing of fibrous, papery tissue develops from the ovary wall. A samara is a simple dry fruit and indehiscent . It is a winged achene...
appear from April to May.
Pests and diseases
In the trials at the Morton ArboretumMorton Arboretum
The Morton Arboretum, in Lisle, Illinois, covers 1,700 acres and is made up of gardens of various plant types and collections of trees from specific taxonomical and geographical areas. It includes native woodlands and a restored Illinois prairie. The Arboretum has over 4,100 different species of...
, Illinois
Illinois
Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...
, U. lamellosa was found to have a good resistance to Dutch elm disease
Dutch elm disease
Dutch elm disease is a disease caused by a member of the sac fungi category, affecting elm trees which is spread by the elm bark beetle. Although believed to be originally native to Asia, the disease has been accidentally introduced into America and Europe, where it has devastated native...
.
The species was also found to be among the least suitable elms for feeding and reproduction by the adult elm leaf beetle Xanthogaleruca luteola
Xanthogaleruca luteola
Xanthogaleruca luteola, commonly known as the Elm Leaf Beetle, is a serious pest of the elm. Indigenous to Europe, it was accidentally introduced to North America. Both the imagines and larvae feed on the emergent leaves of the elm...
http://www.sunshinenursery.com/survey.htm http://www.bioone.org/doi/full/10.1603/0022-0493%282001%29094%5B0162%3AROTCEU%5D2.0.CO%3B2 and feeding by the Japanese Beetle Popillia japonica http://www.bioone.org/doi/full/10.1603/0022-0493%282001%29094%5B0445%3APOTCEU%5D2.0.CO%3B2 in the USA.
Cultivation
Rare in cultivation beyond China, it is one of a number of Chinese species which were assessed for their horticultural merit at the Morton Arboretum where it was adjudged suitable for planting in parks and gardens, but typically intolerant of wet soils .Although known to propagate satisfactorily, U. lamellosa is only very rarely found in commerce in Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
and the USA; there are no known cultivar
Cultivar
A cultivar'Cultivar has two meanings as explained under Formal definition. When used in reference to a taxon, the word does not apply to an individual plant but to all those plants sharing the unique characteristics that define the cultivar. is a plant or group of plants selected for desirable...
s.
Accessions
North America- Brenton ArboretumBrenton ArboretumThe Brenton Arboretum 121 acres is a new arboretum and botanical garden in early stages of development, located at 2629 Palo Circle, Dallas Center, Iowa, USA. The Arboretum aims to display all Iowa native trees and shrubs suitable to the site, as well as many other tree species which can grow in...
, Dallas Center, IowaIowaIowa is a state located in the Midwestern United States, an area often referred to as the "American Heartland". It derives its name from the Ioway people, one of the many American Indian tribes that occupied the state at the time of European exploration. Iowa was a part of the French colony of New...
. No accession details available. - Denver Botanic GardensDenver Botanic GardensThe Denver Botanic Gardens is a public botanical garden located in Denver, Colorado in the Cheesman Park neighborhood. The park contains a conservatory, a variety of theme gardens and a sunken amphitheater, which hosts various concerts in the summer...
. No details available - Holden ArboretumHolden ArboretumThe Holden Arboretum, in Kirtland, Ohio, USA, is one of the largest arboretums and botanical gardens in the United States, with over 3,500 acres , 600 acres of which are devoted to collections and gardens. Diverse natural areas and ecologically sensitive habitats make up the rest of the holdings...
. Acc. no. 96-178, provenance unrecorded - Morton ArboretumMorton ArboretumThe Morton Arboretum, in Lisle, Illinois, covers 1,700 acres and is made up of gardens of various plant types and collections of trees from specific taxonomical and geographical areas. It includes native woodlands and a restored Illinois prairie. The Arboretum has over 4,100 different species of...
. Acc. nos. 317-90, 51-95, 655-2006, (listed as syn. U. taihangshanensis): 446-2007. - University of British ColumbiaUniversity of British ColumbiaThe University of British Columbia is a public research university. UBC’s two main campuses are situated in Vancouver and in Kelowna in the Okanagan Valley...
Botanical Garden, VancouverVancouverVancouver is a coastal seaport city on the mainland of British Columbia, Canada. It is the hub of Greater Vancouver, which, with over 2.3 million residents, is the third most populous metropolitan area in the country,...
. Acc. no. 022715-0334-1983. - U S National ArboretumUnited States National ArboretumThe United States National Arboretum is an arboretum in Washington, D.C., operated by the United States Department of Agriculture's Agricultural Research Service as a division of the Henry A. Wallace Beltsville Agricultural Research Center...
http://www.usna.usda.gov/index.htm, Washington, D.C.Washington, D.C.Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....
, USA. Acc. nos. 68993, 68994, 76228. Also, listed under syn. U. taihangshanensis: 76237, 76245, 68981.
Europe
- Botanical Garden Kerkrade http://translate.google.co.uk/translate?hl=en&sl=nl&u=http://www.botatuin.nl/&ei=7RotSr6FC9vRjAfqw7D6Cg&sa=X&oi=translate&resnum=2&ct=result&prev=/search%3Fq%3Dbotanische%2Btuin%2Bkerkrade%26hl%3Den%26sa%3DG, KerkradeKerkradeKerkrade is a town and a municipality in the southeastern Netherlands.It is the western half of the divided region and de facto city, taken together with the eastern half, the German town of Herzogenrath...
, NetherlandsNetherlandsThe Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...
. One large tree; no accession details available. - Grange Farm ArboretumGrange Farm ArboretumThe Grange Farm Arboretum is a small private arboretum comprising 3 hectares accommodating over 800 trees, mostly native and ornamental species or cultivars, notably oaks, ashes, walnuts and elms, growing on a calcareous loam....
, Sutton St. James, SpaldingSpalding, LincolnshireSpalding is a market town with a population of 30,000 on the River Welland in the South Holland district of Lincolnshire, England. Little London is a hamlet directly south of Spalding on the B1172 road....
, LincolnshireLincolnshireLincolnshire is a county in the east of England. It borders Norfolk to the south east, Cambridgeshire to the south, Rutland to the south west, Leicestershire and Nottinghamshire to the west, South Yorkshire to the north west, and the East Riding of Yorkshire to the north. It also borders...
, UK. Acc. no. 702. - RBG EdinburghRoyal Botanic Garden EdinburghThe Royal Botanic Garden Edinburgh is a scientific centre for the study of plants, their diversity and conservation, as well as a popular tourist attraction. Originally founded in 1670 as a physic garden to grow medicinal plants, today it occupies four sites across Scotland — Edinburgh,...
, Benmore. Acc. no. 19951216. Wild collected in YunnanYunnanYunnan is a province of the People's Republic of China, located in the far southwest of the country spanning approximately and with a population of 45.7 million . The capital of the province is Kunming. The province borders Burma, Laos, and Vietnam.Yunnan is situated in a mountainous area, with...
province, ChinaChinaChinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
by Sino-Scottish Expedition. - Royal Horticultural SocietyRoyal Horticultural SocietyThe Royal Horticultural Society was founded in 1804 in London, England as the Horticultural Society of London, and gained its present name in a Royal Charter granted in 1861 by Prince Albert...
gardens, WisleyWisleyWisley is a small village in Surrey, England. It lies between Cobham and Woking. It is the home of the Royal Horticultural Society's Wisley Garden. The River Wey runs through the village....
, bed WA 0201; (planted 1998), (the tree appeared to have succumbed to the drought of summer 2006, and all top growth had died save a few suckers at the base). - Strona Arboretum, University of Life Sciences, WarsawWarsawWarsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...
, PolandPolandPoland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...
.