Ulmus × hollandica 'Viscosa'

Ulmus × hollandica
Hybrid parentage U. glabra × U. minor
Cultivar 'Viscosa'
Origin Europe

The hybrid elm Ulmus × hollandica 'Viscosa' is probably one of a number of cultivars arising from the crossing of the Wych Elm U. glabra with a variety of Field Elm U. minor. The tree was listed by Loddiges, (Hackney, London) in his catalogue of 1836 and two years later by Loudon in Arboretum et Fruticetum Britannicum 3: 1378, 1838, as U. viscosa. An early specimen in the Herbarium Dumortier named U. viscosa Audibert was later sunk by Melville as U. × hollandica.[1]

Description

'Viscosa' was distinguished by its large, deep-green leaves with anthocyanin pigment.[2]

Cultivation

No specimens are known to survive in Europe.

Synonymy

Notable trees

An example stands in Portland, Oregon, USA.

References

  1. Melville, R. (1978). On the discrimination of species in hybrid swarms with special reference to Ulmus and the nomenclature of U. minor (Mill.) and U. carpinifolia (Gled.). Taxon 27: 345351.
  2. Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus" (PDF). Arnoldia. Arnold Arboretum, Harvard University. 24 (6–8): 41–80. Retrieved 20 June 2016.
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