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The elm cultivar Ulmus 'Atropurpurea' [:dark purple] was raised from seed at the Späth nursery in Berlin, Germany, circa 1881, as Ulmus montana atropurpurea, and was marketed there till the 1930s, being later classed as a cultivar by Boom. Henry (1913) included it under Ulmus montana cultivars but noted that it was "very similar to and perhaps identical with" Ulmus purpureaHort. At Kew it was renamed U. glabraHuds. 'Atropurpurea', but Späth used U. montana both for wych elm and for some U. × hollandica hybrids, so his name does not necessarily imply a wych elm cultivar. The Hesse Nursery of Weener, Germany, however, which marketed 'Atropurpurea' in the 1950s, listed it in later years as a form of U. glabraHuds..
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), as Ulmus purpureaHort. by Wesmael (1863), and as Ulmus campestris var. purpurea, syn. Ulmus purpureaHort. by Petzold and Kirchner in Arboretum Muscaviense (1864). Koch's description followed (1872), the various descriptions appearing to tally. Henry (1913) noted that the Ulmus campestris var. purpureaPetz. & Kirchn. grown at Kew as U. montana var. purpurea was "probably of hybrid origin", Ulmus montana being used at the time both for wych elm cultivars and for some of the U. × hollandica group. His description of Kew's U. montana var. purpurea matches that of the commonly-planted 'Purpurea' of the 20th century. His discussion of it (1913) under U. campestris, however, his name for English Elm, may be the reason why 'Purpurea' is sometimes erroneously called U. procera 'Purpurea' (as in USA and Sweden.
The American Elm cultivar Ulmus americana 'Littleford' was cloned from a tree in Hinsdale, Illinois, circa 1915 and first released in 1927.
The American Elm cultivar Ulmus americana 'Moline' was cloned from a wild seedling transplanted to Moline, Illinois, in 1903 and propagated from 1916 by the Klehm Nurseries, Arlington Heights, IL. Some authorities regard the tree as identical to 'Minneapolis Park'.
The American elm cultivar Ulmus americana 'Aurea' was cloned from a tree discovered by F. L. Temple in Vermont at the end of the 19th century.
The American Elm cultivar Ulmus americana 'Nigricans' was cloned from a selection made from seedlings raised by the Zöschener Baumschule, Germany, at the end of the 19th century.
The Wych Elm cultivar Ulmus glabra 'Corylifolia Purpurea' was raised from seed of 'Purpurea' and described as U. campestris corylifolia purpurea by Pynaert in 1879. An U. campestris corylifolia purpurea was distributed by the Späth nursery of Berlin in the late 19th and early 20th centuries. The Hesse Nursery of Weener, Germany, corrected the U. campestris corylifolia purpurea of their 1930s' lists to U. glabraHuds.corylifolia purpurea by the 1950s. Green listed 'Corylifolia Purpurea' as a form of U. glabra.
The putative Wych Elm cultivar Ulmus glabra 'Latifolia Nigricans' was first described, as Ulmus campestris latifolia nigricans, by Pynaert in 1879. Pynaert, however, did not specify what species he meant by U. campestris. The tree was supplied by the Späth nursery of Berlin in the late 19th century and early 20th as Ulmus montana latifolia nigricans. Späth, like many of his contemporaries, used U. montana both for Wych Elm cultivars and for those of the U. × hollandica group.
The elm cultivar Ulmus 'Folia Rubra' was listed as Ulmus campestris foliis rubris by Louis de Smet in his catalogue of 1877, and Edouard Pynaert van Geert in the same year who obtained the tree from M. Gaujard of Wetteren, Belgium. An U. campestris fol. rubrisHort. was distributed by the Späth nursery, Berlin, in the 1890s and early 1900s.
The elm cultivar Ulmus 'Argenteo-Marginata' was first mentioned by Deegen in Deutsches Magazin für Garten- und Blumenkund (1879), as Ulmus campestris elegans foliis argenteo-marginatis. An U. campestris fol. argenteo-marginataHort. was distributed by the Späth nursery, Berlin, from the 1890s to the 1930s.
The elm cultivar Ulmus 'Myrtifolia', the Myrtle-leaved Elm, first appeared in nursery and horticultural lists from the 1830s, as Ulmus myrtifolia and Ulmus campestris myrtifolia, the name Ulmus myrtifoliaVolxem being used at Kew Gardens from 1880. Lawson's nursery of Edinburgh appears to have been the earliest to list the tree. 'Myrtifolia' was listed by Nicholson in Kew Hand-List Trees & Shrubs (1896), but without description. It was later listed as a cultivar and described by Rehder in 1939 and by Krüssmann in 1962.
The Field Elm cultivar Ulmus minor'Microphylla Purpurea' was first described by C. de Vos, Handboek, 203, 1887.
The Field Elm cultivar Ulmus minor 'Purpurascens' was listed by Lavallée in Arboretum Segrezianum (1877) as U. campestris var. purpurascens (purpurea), but without description, and later by Schneider in Illustriertes Handbuch der Laubholzkunde (1904). Krüssmann in Handbuch der Laubgehölze (1962) identified it as a cultivar.
The Field Elm cultivar Ulmus minor 'Rugosa' was distributed by the Späth nursery, Berlin, in the 1890s and early 1900s as U. campestris rugosaKirchner. Kirchner's tree, like Späth's a level-branched suberose field elm, was received from Belgium in 1864 as Ulmus rugosa pendula. Kirchner stressed that it was different from Loudon's Ulmus montana var. rugosa, being "more likely to belong to U. campestris or its subspecies, the Cork-elm".
The Field Elm cultivar Ulmus minor 'Cucullata Variegata', a variegated form of U. minor 'Cucullata', was listed by C. de Vos, in 1867, as U. americana cucullata folia variegata and by Schelle in Beissner Handbuch der Laubholz-Benennung, 82 (1903) as U. campestris concavifolia cucullata variegataHort, without description.
The Elm cultivar Ulmus 'Myrtifolia Purpurea', the Purple Myrtle-leaved Elm, was first mentioned by Louis de Smet of Ghent (1877) as Ulmus myrtifolia purpurea. An U. campestris myrtifolia purpureaHort. was distributed by Louis van Houtte in the 1880s, by the Späth nursery, Berlin, in the 1890s and early 1900s, and by the Hesse Nursery, Weener, Germany, till the 1930s.
The elm cultivar Ulmus 'Betulaefolia Nigrescens', the Black Birch-leaved Elm, reportedly a seedling of a purplish-leaved elm, was first described by Pynaert in 1879 as U. campestris betulaefolia nigrescens. An U. campestris betulaefolia nigrescensHort. was distributed by the Späth nursery, Berlin, in the 1890s and early 1900s.
The field elm cultivar 'Punctata' ['spotted', the leaf] first appeared in the 1886–87 catalogue of Simon-Louis of Metz, France, as U. campestris punctata. It was distributed by the Späth nursery, Berlin, in the 1890s and early 1900s as U. campestris punctataSim.-Louis, the Späth catalogue listing it separately from U. campestris fol. argenteo-variegata and from U. campestris fol. argenteo-marginata. Green considered it possibly a synonym of the Field Elm cultivar 'Argenteo-Variegata'.
References
- ↑ Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. Arnold Arboretum, Harvard University. 24 (6–8): 41–80. Retrieved 16 February 2017.