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The Morton Arboretum, in Lisle, Illinois, United States, is a public garden [1] and outdoor museum with a library, herbarium, and program in tree research including the Center for Tree Science. [2] Its grounds, covering 1,700 acres (6.9 square kilometres), include cataloged collections of trees and other living plants, gardens, and restored ...
Arnold Arboretum, US. Acc. no. 402-86; Morton Arboretum, ... Morton Arboretum Catalogue 2006 This page was last edited on 23 March 2021, at 21:59 (UTC). Text is ...
In trials at the Morton Arboretum, Illinois, the tree was eschewed by the Elm Leaf Beetle Xanthogaleruca luteola. [12] No other specific information available, but the species as a whole is highly preferred for feeding by the Japanese Beetle Popillia japonica. [13] [14] U. americana is the most susceptible of all the elms to verticillium wilt. [15]
The Field Elm cultivar Ulmus minor 'Christine Buisman' was the first cultivar released by the Dutch elm breeding programme, initiated in response to the less virulent form of Dutch elm disease (DED), Ophiostoma ulmi, which afflicted Europe's elms after the First World War. [1] '
Ulmus 'Morton' (selling name Accolade) is an elm cultivar cloned from a putative intraspecific hybrid planted at haweawehthe Morton Arboretum in 1924, which itself originated as seed collected from a tree at the Arnold Arboretum in Massachusetts.
Elms field at the Morton Arboretum. From left of picture: George Ware, Mrs Vera Grbić, Eugene Smalley and Ray Guries (July 2, 1987) George Ware, Ph.D. (1924–2010) was an American dendrologist and former research director of the Morton Arboretum Illinois who specialized in the evaluation of Asiatic species of elm as urban trees.
[4] [5] A cultivar of the same name appeared in Loddiges' catalogue of 1836 and was identified by Loudon in Arboretum et Fruticetum Britannicum (1838) as Ulmus montana var. rugosa Masters, [6] Masters naming the tree maple-bark elm. [7] Ulmus montana was used at the time both for wych cultivars and for some cultivars of the Ulmus × hollandica ...
The elm cultivar Ulmus 'Purpurea', the purple-leaved elm, was listed and described as Ulmus Stricta Purpurea, the 'Upright Purpled-leaved Elm', by John Frederick Wood, F.H.S., in The Midland Florist and Suburban Horticulturist (1851), [1] as Ulmus purpurea Hort. by Wesmael (1863), [2] and as Ulmus campestris var. purpurea, syn. Ulmus purpurea Hort. by Petzold and Kirchner in Arboretum ...