''Ulmus glabra'' 'Lutescens'

Ulmus glabra 'Lutescens'
'Lutescens' (felled c. 2005), Vinkeleskade, Amsterdam.
Species Ulmus glabra
Cultivar 'Lutescens'
Origin England

The Wych Elm cultivar Ulmus glabra 'Lutescens', commonly known as the Golden Wych Elm, arose as a sport of wych elm in York. The original tree was known as the Gallows Elm because of its proximity to the gallows in that city.[1]

Description

A medium-sized, fast-growing deciduous tree that reaches a height of approximately 15 m with a spread of about 20 m. In its first years, the tree is vase-shaped, but spreads as it matures to form a rounded canopy. The hue of the leaves varies according to light intensity. Ergo: where exposed to full sunlight the leaves are bright yellow, but in shade no more than a lime green. 'Lutescens' is arguably the best of the golden elm cultivars as it keeps its colour as it ages.

Pests and diseases

The cultivar is not known to be any less susceptible to Dutch elm disease than the species. It is highly susceptible to the elm leaf beetle Xanthogaleruca luteola .

Cultivation

'Lutescens' was once commonly planted in the UK. Introduced in the early 1900s, it has been widely planted in south-eastern Australia[2] and New Zealand,[3] where it remains in cultivation as Golden Elm,[4] often being grafted on to Ulmus parvifolia rootstock.[3] In Australasia 'Lutescens' has sometimes been mistakenly sold by nurseries under the name 'Louis van Houtte'.[5] It was marketed in the late 19th century as U. montana lutescens by the Späth nursery of Berlin[6] and by the Ulrich nursery of Warsaw,[7] whence it was introduced to Eastern Europe, where it may still survive. It was introduced to the Dominion Arboretum, Ottawa, Canada, probably from Späth, in 1897, as U. montana lutescens.[8]

Notable trees

There are two notable TROBI Champion trees in England, at Pickering Park, Anlaby, measuring 16 m high by 79 cm d.b.h. in 2004, and in Dyke Road Place, Brighton, 16 m high by 76 cm d.b.h. in 2006.[9] In Australia notable specimens grow in Williamstown Botanic Gardens, Williamstown, Victoria,[10][11] in Howard Vineyard, Nairne, South Australia,[12][13] and at 'Poacher's Pantry', Hall, Canberra,[14] and there is a mature tree in the Royal Tasmanian Botanical Gardens, Hobart.[15][16] Four trees stand in Cathedral Square, Christchurch, New Zealand.[17]

Synonymy

  • Ulmus americana aurea: Calmphtout Nursery, Belgium, in error.[18][19]
  • Ulmus campestris lutescens: Dieck, (Zöschen, Germany), Haupt-catalog der Obst- und gehölzbaumschulen des ritterguts Zöschen bei Merseburg 1885, p. 81.
  • Ulmus campestris 'Lutescens': Boom, Nederlandse Dendrologie 1: 157, 1959.

Accessions

Europe

Australasia

Nurseries

Europe

Widely available.

Australasia

References

  1. ↑ White, J. & More, D. Trees of Britain & Northern Europe, Cassell, London, ISBN 0-304-36192-5.
  2. ↑ Lefoe, Gregory K., 'Elms Trees', emelbourne.net.au
  3. 1 2 Wilcox, Mike; Inglis, Chris (2003). "Auckland's elms" (PDF). Auckland Botanical Society Journal. Auckland Botanical Society. 58 (1): 38–45.
  4. ↑ Rowell, Raymond J. (1982). Ornamental Flowering Trees in Australia, AH & AW Reed Pty Ltd ISBN 0-589-50178-X
  5. ↑ Spencer, R., Hawker, J. and Lumley, P. (1991). Elms in Australia. Australia: Royal Botanic Gardens, Melbourne.
  6. ↑ Katalog (PDF). 108. Berlin, Germany: L. Späth Baumschulenweg. 1902–1903. pp. 132–133.
  7. ↑ Ulrich, C. (1894), Katalog Drzew i Krezewow, C. Ulrich, Rok 1893-94, Warszawa
  8. ↑ Saunders, William; Macoun, William Tyrrell (1899). Catalogue of the trees and shrubs in the arboretum and botanic gardens at the central experimental farm (2 ed.). pp. 74–75.
  9. ↑ Johnson, O. (2011). Champion Trees of Britain & Ireland, p. 169. Kew Publishing, Kew, London. ISBN 9781842464526.
  10. ↑ 'Lutescens' in Williamstown Botanic Gardens, Victoria: tripadvisor.com
  11. ↑ 'Lutescens' in Williamstown Botanic Gardens, Victoria: weekendnotes.com
  12. ↑ https://mcfuzzlebuttsmanchen.wordpress.com/2014/12/02/wrap-up-cellar-door-festival-launch-regional-experience/
  13. ↑ https://mcfuzzlebuttsmanchen.files.wordpress.com/2014/12/img_1998-wordpress.jpg
  14. ↑ Golden Elm, Poacher's Pantry, Canberra: weekendnotes.com
  15. ↑ 'Lutescens' in Royal Tasmanian Botanical Gardens, Hobart, gomagoti flickr.com
  16. ↑ 'Lutescens' in Royal Tasmanian Botanical Gardens, Hobart, by Roger T Wong, flickr.com
  17. ↑ 'Golden Elm', Cathedral Square, Christchurch, New Zealand panoramio.com
  18. ↑ Elwes, Henry John; Henry, Augustine (1913). The Trees of Great Britain & Ireland. 7. p. 1868.
  19. ↑ F. J., Fontaine (1968). "Ulmus". Dendroflora. 5: 37–55. Retrieved 30 August 2017.
  20. ↑ "List of plants in the {elm} collection". Brighton & Hove City Council. Retrieved 23 September 2016.
  • "Herbarium specimen - E00824860". Herbarium Catalogue. Royal Botanic Garden Edinburgh. Sheet described as U. montana lutescens, RBGE specimen from Späth nursery (1902)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.