Ulmus glaucescens var. lasiocarpa

Ulmus glaucescens var. lasiocarpa

Taxobox
status = LC
name = "Ulmus glaucescens" var. "lasiocarpa"
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Rosales
familia = Ulmaceae
genus = "Ulmus"
species = "Ulmus glaucescens"
trinomial = "Ulmus glaucescens" var. "lasiocarpa"
trinomial_authority = Rehder

"Ulmus glaucescens" var. "lasiocarpa" Rehder, named the Hairy-fruited Glaucescent Elm in the USA, is found along rivers and mountain slopes at elevations between 2500 m - 2600 m in the provinces of Hebei, Henan, Liaoning, Nei Mongol, Ningxia, eastern Qinghai, and Shanxi.

Description

The variety is distinguished by a "samara densely pubescent when young, with scattered hairs when mature. Fl. and fr. March - May."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. [http://flora.huh.harvard.edu/china/PDF/PDF05/Ulmus.pdf] ] .

Pests and diseases

The tree was heavily damaged by the Elm Leaf Beetle "Xanthogaleruca luteola" in trials in Oklahoma [http://www.sunshinenursery.com/survey.htm] .

Cultivation

The tree is not known to have been introduced to Europe but specimens are grown in North America, and in AustraliaSpencer, R., Hawker, J. and Lumley, P. (1991). "Elms in Australia". Australia: Royal Botanic Gardens, Melbourne. ISBN 0724199624.] in cool, humid montane conditions near Adelaide. There are no known cultivars of this taxon, nor is it known to be available from any nurseries.

Accessions

North America

*Morton Arboretum, Illinois, acc. no. 537-76, raised from seed sent by the Beijing Botanical Garden.

Australasia

*Mount Lofty Botanic Garden, Piccadilly, South Australia. One tree, raised from seed sent by the Beijing Botanical Garden, planted out c. 1984, and 4.5 m high with a d.b.h. of 30 cm in 2008.

References


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Ulmus glaucescens — Taxobox status = LC name = Ulmus glaucescens regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Rosales familia = Ulmaceae genus = Ulmus species = U. glaucescens binomial = Ulmus glaucescens binomial authority = Franch. Ulmus …   Wikipedia

  • List of Elm species, varieties, cultivars and hybrids — Species, varieties= * Mountain elms : spring flowering; flowers subsessile; leaves usually rough above. ** Ulmus bergmanniana Bergmann s Elm *** Ulmus bergmanniana var. bergmanniana *** Ulmus bergmanniana var. lasiophylla ** Ulmus castaneifolia… …   Wikipedia

  • List of Elm species and varieties by scientific name — Species, varieties, forms= * Mountain elms : spring flowering; flowers subsessile; leaves usually rough above. ** Ulmus bergmanniana Bergmann s Elm *** Ulmus bergmanniana var. bergmanniana *** Ulmus bergmanniana var. lasiophylla ** Ulmus… …   Wikipedia

  • Elms in Australia — The cultivation of elms in Australia began in the first half of the 19th century when European settlers imported species from their former homelands. Owing to the demise of elms in the northern hemisphere as a result of the Dutch elm disease… …   Wikipedia

  • List of trees and shrubs by taxonomic family — The following is a list of trees and shrubs of high notoriety. Taxonomic families for the following trees and shrubs are listed in alphabetical order, likewise the genera and closely related species.=GYMNOSPERMS= =CONIFERS= Araucariaceae: The… …   Wikipedia

  • Flora of Ohio — This list includes plants native and introduced to the state of Ohio, designated (N) and (I), respectively. Varieties and subspecies link to their parent species. A * Abies balsamea var. balsamea (N) * Abutilon theophrasti (I) * Acalypha deamii… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”