| 词条 | Ulmus × hollandica 'Viscosa' |
| 释义 |
| name = Ulmus × hollandica 'Viscosa' | hybrid = 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 [https://archive.org/stream/arboretumetfruti03loudrich#page/1378/mode/1up 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] CultivationNo specimens are known to survive in Europe. Synonymy
Notable treesAn example stands in Portland, Oregon, USA.{{cn|date=May 2016}} References1. ^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. {{Elm species, varieties, hybrids, hybrid cultivars and species cultivars |state=collapsed}}{{DEFAULTSORT:Ulmus x hollandica 'Viscosa'}}2. ^{{cite journal |last=Green |first=Peter Shaw |authorlink=Peter Shaw Green |date=1964 |title=Registration of cultivar names in Ulmus|url=https://archive.org/stream/arnoldiaarno_21#page/40/mode/2up/|journal=Arnoldia |volume=24|pages=41–80 |number=6–8 |publisher=Arnold Arboretum, Harvard University |access-date=16 February 2017}} 4 : Dutch elm cultivar|Ulmus articles missing images|Ulmus|Missing elm cultivars |
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