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Ulmus × arbuscula

Elm cultivar

Summary

Elm cultivar

FieldValue
nameUlmus × arbuscula
hybridU. glabra × U. pumila
originRussia

Ulmus × arbuscula E. Wolf [: "bushy" ] is a putative hybrid of Ulmus scabra (: glabra) and Ulmus pumila raised from seed collected from a large wych elm in the St. Petersburg Botanic Garden in 1902.Elwes, H. J. & Henry, A. (1913). The Trees of Great Britain and Ireland. Vol. 7, p.1827, Private publication, Edinburgh 1913. Reprinted 2014, Cambridge University Press, A similar crossing was cloned ('FL025') by the Istituto per la Protezione delle Piante (IPP), Florence, as part of the Italian elm breeding programme circa 2000.

Description

The St. Petersburg tree bore leaves 17–75 mm long with 20 lateral veins, side shoots Image: Ulmus FL025 leaf 1.jpg|Ulmus FL025 (glabra x pumila) leaf, Cams Bay, Fareham, England Image: Ukmus FL025 leaf 2.jpg|Ulmus FL025 (glabra x pumila) leaf File:Ulmus arbuscula FL025 samara close up.jpg|Ulmus FL025 (glabra x pumila) samara Image: Ulmus FL025 bark 2.jpg|Ulmus FL025 Bark of Cams Bay tree Image: Ulmus FL025 structure 4.jpg|Ulmus FL025 structure

Pests and diseases

A tree at the Ryston Hall arboretum, Norfolk, listed as Ulmus arbusculata was killed by the earlier strain of Dutch elm disease prevalent in the 1930s.

Cultivation

The tree was for a short time from 1913 distributed by the Späth nursery, as Ulmus arbuscula E. Wolf, described as "(montana × pumila), ..an as yet uncommon hybrid", a specimen being supplied to Ryston Hall at that time. It does not appear in their post-war catalogues. Another, labelled Ulmus arbuscula Wolf and described as a large tree, stood in the Nymphenburg Palace Park, Munich, in the mid-20th century. Two trees survive in eastern European arboreta (see 'Accessions'). U. × arbuscula is not known to have been introduced to North America or Australasia.

Accessions

;Europe

  • Butterfly Conservation Hants & IoW Branch elm trials, Cams Bay, Fareham, UK. One specimen of IPP clone 'FL025' planted circa 2005.
  • Grange Farm Arboretum, Lincolnshire, UK. Acc. no. 1097 (grown from seed).
  • Hortus Botanicus Nationalis, Salaspils, Latvia. Acc. nos. 18093, 18094. Planted 1964, no details available.
  • Strona Arboretum, University of Life Sciences, Warsaw, Poland.

References

References

  1. Wolf, Egbert. (1910). "Neue Gehölze". Mitteilungen der Deutschen Dendrologischen Gesellschaft.
  2. [http://www.rystonhall.co.uk/ rystonhall.co.uk/]
  3. (c. 1920). "Ryston Hall Arboretum catalogue".
  4. [https://archive.org/details/SpaethL158.1913B Späth, L., Catalogue 158 (1913-14; Berlin), p.136]
  5. {{Naturalis Biodiversity Center
  6. Hortus Botanicus Nationalis, Salaspils, Latvia, Accessions List 2006
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

ulmus plant-nothospecies ulmus-hybrids
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