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*Ulmus* 'Louis van Houtte'
Ulmus 'Louis van Houtte'
	'Louis van Houtte' in Christchurch Botanic Gardens, New Zealand
Genus	Ulmus
Cultivar	'Louis van Houtte'
Origin	Belgium

Ulmus 'Louis van Houtte' (Syn. Ulmus 'Vanhouttei') is believed to have been first cultivated in Ghent, Belgium circa 1863.^[1]^[2] It was first mentioned by Franz Deegen in 1886.^[3]^[4] It was once thought a cultivar of English Elm Ulmus minor 'Atinia', though this derivation has long been questioned; W. J. Bean called it "an elm of uncertain status".^[5] Its dissimilarity from the type and its Belgian provenance make the 'Atinia' attribution unlikely. Fontaine (1968) considered it probably a form of U. × hollandica.^[6]

The cultivar is named for the Belgian horticulturist and plant collector Louis Benoit van Houtte, 1810–1876.

Description

When young, the tree has leaves entirely yellow, a colour retained throughout summer. However, as the tree ages, the colouring may begin a gradual reversion to green. A mature specimen which retained its yellow colouration in the crown stood in Edinburgh's Royal Circus Gardens till the early 1990s.^[7] The vertically fissured bark of mature trees is unlike that of English elm, with its squarish scaly fissuring. 'Louis van Houtte' has smaller leaves than the not dissimilar Ulmus glabra 'Lutescens' (Golden Wych Elm).

'Louis van Houtte' samarae, Royal Botanic Gardens, Melbourne, Victoria
'Louis van Houtte' in Royal Botanic Garden Edinburgh (1989)^[8]
'Louis van Houtte', Brighton (July 1992)
Foliage, botanic garden in Christchurch, New Zealand
'Louis van Houtte', Preston Manor, Brighton
Leaves, Christchurch, New Zealand
Bark of 'Louis van Houtte', Royal Botanic Garden Edinburgh

Pests and diseases

'Louis van Houtte' is vulnerable to Dutch elm disease (DED). Two specimens planted at Kew Gardens in the Pagoda Vista succumbed very rapidly to the earlier strain of DED in 1931.^[5]

Cultivation

Before Dutch elm disease the tree was commonly cultivated in northern Europe.^[9]^[10] The Späth nursery of Berlin marketed it in the late 19th century as U. campestris Louis van Houtte,^[11] under which name it was introduced to the Dominion Arboretum, Ottawa, Canada, in 1898,^[12] and to the Ryston Hall arboretum, Norfolk, UK,^[13] (planted 1913).^[14] In the UK the tree was supplied by Hillier & Sons Nursery of Winchester, Hampshire, as U. procera 'Vanhouttei' / 'Louis van Houtte'.^[15] The tree appeared in the 1902 catalogue of the Bobbink and Atkins nursery, Rutherford, New Jersey, as Ulmus aurea Louis van Houtte,^[16] and in Kelsey's 1904 catalogue, New York, as U. 'Louis van Houtte'.^[17] It is less commonly cultivated in Australasia, where the golden wych elm Ulmus glabra 'Lutescens' has sometimes been mistakenly sold by nurseries under the name 'Louis van Houtte'.^[18] The description, "The finest of the golden elms, with a large leaf of a clear golden colour", in the 1918 catalogue of the Gembrook or Nobelius Nursery near Melbourne, suggests 'Lutescens' rather than 'Louis van Houtte'.^[19] Three trees in separate locations are known in the British Isles,^{[note 1]} as well as a partial avenue in Aberdeen (see 'Notable trees').^[20] The cultivar remains in commerce at a nursery in the US.

'Louis van Houtte' partially reverting, Brighton
'Louis van Houtte' labelled a field elm cultivar, Christchurch, New Zealand

Notable trees

Several large trees survive in Sweden, including a specimen in Kristianstad and one, planted c.1890 (girth 3.7 m), in the Serafimerparken, Stockholm (2017).^[21]^[22]^[23] Osborne Place, Aberdeen is lined mostly with 'Louis Van Houtte' planted in 1936.^[20]

The largest known tree is an old specimen located in Christchurch Botanic Gardens, New Zealand.^[24] The tree has a diameter of 179.9 cm, is 27.7 m high and has an average canopy spread of 31.1 m (2023).^[25]

Synonymy

'Ludwig van Houtte': Spath-Buch, 1720–1920, 229, 1921, in error.
Ulmus montana lutescens van Houttei: Schelle in Beissner et al., Handbuch der Laubholz-Benennung 86. 1903, in error.
Ulmus minor foliis flavescentibus: Miller, The Gardeners Dictionary ed. 2. 1735, Ulmus no. 8. ^{[disputed – discuss]}

Accessions

North America

None known.

Europe

Brighton & Hove City Council, UK. NCCPG Elm Collection.^[26] UK champion: Carden Park, 21 m high, 61 cm d.b.h. (1996).^[27]
Grange Farm Arboretum, Lincolnshire, UK. Acc. no. 1134, as U. minor 'Louis van Houtte'.
National Botanic Gardens (Ireland), Glasnevin, Dublin. Location A3 (156)
Wijdemeren city council, Netherlands. Elm collection, one tree planted 2018 Anton Smeerdijkgaarde, Kortenhoef.

Australasia

Royal Botanic Gardens Victoria (Melbourne), Australia^[28]
Christchurch Botanic Gardens, Christchurch, New Zealand. 1 tree, details not known.
Eastwoodhill Arboretum [4], Gisborne, New Zealand. 2 trees, details not known.
Manukau Cemetery, Papatoetoe, Auckland, New Zealand. 1 tree.^[29]

Nurseries

Europe

Centrum voor Botanische Verrijking vzw, Kampenhout, Belgium.^[30]
Noordplant Nurserys, Glimmen, Netherlands

North America

Foothills Nursery, Mt. Airy, North Carolina, United States^[31]

Notes

^ In Brighton (see Accessions); in Kew's Wakehurst Place collection (hedge form); in the garden of Whitefoord House, Edinburgh (pollarded) (2017).

References

^ Boom, B. K. [1] (1959), Nederlandse Dendrologie 1: 158, 1959
^ Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. 24 (6–8). Arnold Arboretum, Harvard University: 41–80. Retrieved 16 February 2017.
^ Deegen, Franz (1886). Wittmack; Perring (eds.). "Drei buntfarbige Gehölz-Neuheiten für die Frühjahrs-Saison 1886". Deutsche Garten-Zeitung. 1 (7): 102.
^ "Herbarium specimen - E0082478". Herbarium Catalogue. Royal Botanic Garden Edinburgh. Labelled U. Louis van Houtte, Kew specimen, 1885, from Simon-Louis frères, Metz
^ ^a ^b Bean, W. J. (1988) Trees and shrubs hardy in Great Britain, 8th edition, Murray, London, p. 655
^ F. J., Fontaine (1968). "Ulmus". Dendroflora. 5: 37–55. Retrieved 30 August 2017.
^ Colour photo in Angus & Patricia MacDonald, Above Edinburgh and South-East Scotland (Edinburgh, 1989), pp. 70–71
^ "Herbarium specimen - E00824792". Herbarium Catalogue. Royal Botanic Garden Edinburgh. dated 1901; "Herbarium specimen - E00824789". Herbarium Catalogue. Royal Botanic Garden Edinburgh. RBGE specimen, 1902; "Herbarium specimen - E00824791". Herbarium Catalogue. Royal Botanic Garden Edinburgh. RBGE specimen, 1902; "Herbarium specimen - E00824790". Herbarium Catalogue. Royal Botanic Garden Edinburgh. RBGE specimen, 1902
^ Clouston, B.; Stansfield, K., eds. (1979). After the Elm. London: Heinemann
^ Wilkinson, G. (1978). Epitaph for the Elm. London: Hutchinson.
^ Katalog (PDF). Vol. 108. Berlin, Germany: L. Späth Baumschulenweg. 1902–1903. pp. 132–133.
^ 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.). Ottawa. pp. 74–75.
^ rystonhall.co.uk/
^ Ryston Hall Arboretum catalogue. c. 1920. pp. 13–14.
^ Trees and Shrubs Catalogue, Hillier & Sons, 1958–1959, p.99
^ Bobbink and Atkins, Rutherford. N.J. 1902. p. 51.
^ General catalogue, 1904 : choice hardy trees, shrubs, evergreens, roses, herbaceous plants, fruits, etc. New York: Frederick W. Kelsey. 1904. p. 18.
^ Spencer, R., Hawker, J. and Lumley, P. (1991). Elms in Australia. Australia: Royal Botanic Gardens, Melbourne.
^ Gembrook or Nobelius Nursery, Melbourne, 1916 catalogue
^ ^a ^b Application for commemorative plaque, Aberdeen City Council (2009)
^ Lagerstedt, Lars (2014). "Märkesträd i Sverige - 10 Almar" [Notable trees in Sweden - 10 Elms] (PDF). Lustgården. 94: 60, 76. Retrieved 15 May 2018.
^ Photograph of 'Louis van Houtte' elm in Kristianstad, Sweden: www.tradgardsakademin.se - photo 7 [2]; photograph of Serafimerparken tree from tradgardsakademin.se
^ 'Louis van Houtte' from the air, left, Serafimerparken, Stockholm (2013)[3]
^ Photograph of 'Louis van Houtte' in Christchurch Botanic Gardens, wvendb.wordpress.com/page/3/
^ "The New Zealand Tree Register".
^ "List of plants in the {elm} collection". Brighton & Hove City Council. Retrieved 23 September 2016.
^ Johnson, Owen (ed.) (2003). Champion Trees of Britain & Ireland. Whittet Press, ISBN 978-1-873580-61-5.
^ RBGV (Melbourne) Elm list
^ Wilcox, Mike; Inglis, Chris (2003). "Auckland's elms" (PDF). Auckland Botanical Society Journal. 58 (1). Auckland Botanical Society: 38–45. Archived from the original (PDF) on 6 January 2015. Retrieved 22 February 2017.
^ Centrum voor Botanische Verrijking vzw: Voorraadlijst, accessdate: 2 November 2016
^ "Trees". Archived from the original on 29 September 2007.

[20] In Brighton (see Accessions); in Kew's Wakehurst Place collection (hedge form); in the garden of Whitefoord House, Edinburgh (pollarded) (2017).

[Boom-1] Boom, B. K. [1] (1959), Nederlandse Dendrologie 1: 158, 1959

[Green-2] Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. 24 (6–8). Arnold Arboretum, Harvard University: 41–80. Retrieved 16 February 2017.

[deegen1886-3] Deegen, Franz (1886). Wittmack; Perring (eds.). "Drei buntfarbige Gehölz-Neuheiten für die Frühjahrs-Saison 1886". Deutsche Garten-Zeitung. 1 (7): 102.

[4] "Herbarium specimen - E0082478". Herbarium Catalogue. Royal Botanic Garden Edinburgh. Labelled U. Louis van Houtte, Kew specimen, 1885, from Simon-Louis frères, Metz

[Bean-5] Bean, W. J. (1988) Trees and shrubs hardy in Great Britain, 8th edition, Murray, London, p. 655

[Fontaine-6] F. J., Fontaine (1968). "Ulmus". Dendroflora. 5: 37–55. Retrieved 30 August 2017.

[7] Colour photo in Angus & Patricia MacDonald, Above Edinburgh and South-East Scotland (Edinburgh, 1989), pp. 70–71

[8] "Herbarium specimen - E00824792". Herbarium Catalogue. Royal Botanic Garden Edinburgh. dated 1901; "Herbarium specimen - E00824789". Herbarium Catalogue. Royal Botanic Garden Edinburgh. RBGE specimen, 1902; "Herbarium specimen - E00824791". Herbarium Catalogue. Royal Botanic Garden Edinburgh. RBGE specimen, 1902; "Herbarium specimen - E00824790". Herbarium Catalogue. Royal Botanic Garden Edinburgh. RBGE specimen, 1902

[9] Clouston, B.; Stansfield, K., eds. (1979). After the Elm. London: Heinemann

[10] Wilkinson, G. (1978). Epitaph for the Elm. London: Hutchinson.

[spath1903-11] Katalog (PDF). Vol. 108. Berlin, Germany: L. Späth Baumschulenweg. 1902–1903. pp. 132–133.

[Ottawa1899-12] 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.). Ottawa. pp. 74–75.

[13] rystonhall.co.uk/

[Ryston-14] Ryston Hall Arboretum catalogue. c. 1920. pp. 13–14.

[15] Trees and Shrubs Catalogue, Hillier & Sons, 1958–1959, p.99

[bobink-16] Bobbink and Atkins, Rutherford. N.J. 1902. p. 51.

[17] General catalogue, 1904 : choice hardy trees, shrubs, evergreens, roses, herbaceous plants, fruits, etc. New York: Frederick W. Kelsey. 1904. p. 18.

[18] Spencer, R., Hawker, J. and Lumley, P. (1991). Elms in Australia. Australia: Royal Botanic Gardens, Melbourne.

[19] Gembrook or Nobelius Nursery, Melbourne, 1916 catalogue

[Application-21] Application for commemorative plaque, Aberdeen City Council (2009)

[Lustgarden94-22] Lagerstedt, Lars (2014). "Märkesträd i Sverige - 10 Almar" [Notable trees in Sweden - 10 Elms] (PDF). Lustgården. 94: 60, 76. Retrieved 15 May 2018.

[23] Photograph of 'Louis van Houtte' elm in Kristianstad, Sweden: www.tradgardsakademin.se - photo 7 [2]; photograph of Serafimerparken tree from tradgardsakademin.se

[24] 'Louis van Houtte' from the air, left, Serafimerparken, Stockholm (2013)[3]

[25] Photograph of 'Louis van Houtte' in Christchurch Botanic Gardens, wvendb.wordpress.com/page/3/

[26] "The New Zealand Tree Register".

[Brighton-27] "List of plants in the {elm} collection". Brighton & Hove City Council. Retrieved 23 September 2016.

[Johnson-28] Johnson, Owen (ed.) (2003). Champion Trees of Britain & Ireland. Whittet Press, ISBN 978-1-873580-61-5.

[29] RBGV (Melbourne) Elm list

[Auckland-30] Wilcox, Mike; Inglis, Chris (2003). "Auckland's elms" (PDF). Auckland Botanical Society Journal. 58 (1). Auckland Botanical Society: 38–45. Archived from the original (PDF) on 6 January 2015. Retrieved 22 February 2017.

[botanischeverrijking.be-31] Centrum voor Botanische Verrijking vzw: Voorraadlijst, accessdate: 2 November 2016

[32] "Trees". Archived from the original on 29 September 2007.

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PROFILPELAJAR.COM

Ulmus 'Louis van Houtte'

Description

Pests and diseases

Cultivation

Notable trees

Synonymy

Accessions

North America

Europe

Australasia

Nurseries

Europe

North America

Notes

References

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