Ulmus 'Webbiana'

Ulmus
Cultivar 'Webbiana'
Origin England

The elm cultivar Ulmus 'Webbiana', or Webb's Smooth-leafed Elm, is said to be a form of Cornish Elm, distinguished by its unusual leaves that fold longitudinally; raised at Lee's Nursery, Hammersmith, London, circa 1868.

Description

The tree is of pyramidal habit, with ascending branches and sparse foliage. Judged almost identical to Ulmus 'Concavaefolia' described by Loudon in 1838, and Ulmus 'Viscosa' Koch.

Pests and diseases

The tree is not known to have any significant resistance to Dutch elm disease.

Cultivation

Two specimens are known to survive, one in the USA and the other in the UK, the latter treated as a hedging plant to avoid the attentions of the Scolytus beetles that act as vectors of Dutch elm disease. Two were planted at Kew Gardens in 1871.[1]

Etymology

The origin of the epithet is obscure, but may commemorate Philip Barker Webb, an English botanist of the early 19th century.

Accessions

North America

Europe

References

  1. Elwes, H. J. & Henry, A. (1913). The Trees of Great Britain & Ireland. Vol. VII. 18481929. Private publication, Edinburgh. Republished by Cambridge University Press, 2014.
This article is issued from Wikipedia - version of the Thursday, December 17, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.