Ulmus minor subsp. minor 'Hoersholmiensis'

Ulmus minor subsp. minor 'Hoersholmiensis'

Infobox Cultivar
name = "Ulmus minor" subsp. "minor"


image_caption = 'Hoersholmiensis', Amsterdam. Photo: Ronnie Nijboer, Bonte Hoek kwekerijen.
cultivar = 'Hoersholmiensis'
origin = Hørsholm, DenmarkThe Smooth-leaved Elm "Ulmus minor" subsp. "minor " cultivar 'Hoersholmiensis' [http://images.google.nl/images?q=Ulmus%20minor%20'Hoersholmiensis'] is believed to have originated in the Hørsholm Planteskole, Denmark, circa 1885 and propagated by the Nielsen nursery in Hørsholm Green, P. S. (1964). Registration of cultivar names in Ulmus. "Arnoldia", Vol. 24. Arnold Arboretum, Harvard University. [http://arnoldia.arboretum.harvard.edu/pdf/articles/1605.pdf] ] .

Description

The tree has an upright habit and rapid growth. The leaves are lanceolate or narrowly obovate, acuminate at the tip and with a cuneate base, clear green in colour Bean, W. J. (1980) "Trees and shrubs hardy in Great Britain" (8th edition). Murray, UK.] .

Pests and diseases

'Hoersholmiensis' is susceptible to Dutch elm disease and Coral-spot Fungus "Nectria cinnabarina"

Cultivation

The tree was planted in the Netherlands, notably along the Westlandsgracht in Amsterdam where it still survives, although upper branches are often killed by Coral-spot Fungus. The cultivar was introduced to the USA, where it was crossed and back-crossed there with the Siberian Elm "Ulmus pumila" to create several popular, disease-resistant cultivars in the 1970s.

Hybrid cultivars

*'Homestead', 'Regal', 'Urban'.

ynonymy

*"Ulmus carpinifolia" 'Hoersholm': Krüssmann, "Handbh. Laubgeh." 2: 534, 1962
*"Ulmus carpinifolia" 'Hoersholmensis': "Meded. Comite Best. Iepenz", 13: 10, 1933
*"Ulmus carpinifolia" 'Hoersholmii': "Plant Buyer's Guide", ed. 6, 285, 1958
*"Ulmus carpinifolia" var. "horsholmii": Melville, "Jour. Linn. Soc. Lond. Bot.", 53: 88, 90. 1946

Accessions

None known

Nurseries

Europe

*De Reebock [http://www.dereebock.be] , Zwalm, Belgium

References


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