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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. Listed by Loddiges, (Hackney, London) in his catalogue of 1836 and two years later by Loudon in Arb. Frut. Brit. 3: 1378, 1838, as U. viscosa, it is distinguished by its large, deep-green leaves with anthocyanin pigment [1]. An early specimen in the Herbarium Dumortier named U. viscosa Audibert was later sunk by Melville as U. × hollandica [2]. The tree is not known to remain in cultivation.
[edit] Synonymy
- Ulmus viscosa: Loddiges, and Loudon (see text).
[edit] References
- ^ Green, P. S. (1964). Registration of cultivar names in Ulmus. Arnoldia, Vol. 24. Arnold Arboretum, Harvard University. [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: 345-351.
