Biology:Ulmus parvifolia 'Dynasty'

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Short description: Elm cultivar


Ulmus parvifolia 'Dynasty'
SpeciesUlmus parvifolia
Cultivar'Dynasty'
OriginUS

The Chinese Elm cultivar Ulmus parvifolia 'Dynasty' is a United States National Arboretum introduction reputed to be very fast-growing.[1]

Description

A medium tree rarely exceeding 13 m in height, with a spread of similar dimension producing a very rounded shape. Opinions of the tree's aesthetic merit vary; Dirr [2] considered that the tree "borders on a boondoggle" whereas Warren [3] and Jacobson [4] thought the shape 'good', and the foliage a decent autumn colour (the leaves turn orange-yellow).

Pests and diseases

The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.[5] Moreover, the tree's foliage was adjudged "resistant" to Black Spot by the Plant Diagnostic Clinic of the University of Missouri [1].

Cultivation

The tree is largely limited to North America, although it has been introduced to Italy.

Accessions

North America

  • Bartlett Tree Experts, US. Acc. nos. 87-1060/1/2, 2004-326, 2004-336
  • Dawes Arboretum [2], Newark, Ohio, US. 2 trees, no acc. details available.
  • Missouri Botanical Garden, St. Louis, Missouri, US. Acc. nos. 1986-1899, 1986-0901.
  • Scott Arboretum, US. Acc. no. 97-689
  • Smith College, US. Acc. nos. 2102, 4903
  • U S National Arboretum [3][no|permanent dead link|dead link}}], Washington, D.C., US. Acc. no. 63502
  • J.C. Raulston Arboretum, North Carolina State University, Raleigh, North Carolina, US.

Nurseries

North America

  • Boyd Coffey & Sons, Nurseries, Inc. Lenoir, North Carolina, US.
  • Sun Valley Garden Centre [4], Eden Prairie, Minnesota, US.

Europe

  • UmbraFlor [5], Spello, Italy. As Ulmus 'Dinasty'.
  • Van Den Berk (UK) Ltd., [6], London, UK

References

  1. HortScience, Vol. 19, 898–899. (1984)
  2. Dirr, M. A. (1998). Manual of Woody landscape Plants. Stipes Publishing LLC, Champaign, Illinois
  3. Warren, K. (2000). The return of the elm: status of elms in the nursery industry. In: Dunn, C. P. (Ed.), The Elms, Kluwer Academic Publishers, Boston.
  4. Jacobson, A. L. (1996). North American Landscape Trees. Ten Speed Press, Berkeley, CA.
  5. "Elm Leaf Beetle Survey". Archived from the original. Error: If you specify |archiveurl=, you must also specify |archivedate=. https://web.archive.org/web/20110719132152/http://www.sunshinenursery.com/survey.htm. 

External links