Related Research Articles
The Wych Elm cultivar Ulmus glabra 'Horizontalis', commonly known as the Weeping Wych Elm or Horizontal Elm, was discovered in a Perth nursery circa 1816. The tree was originally identified as 'Pendula' by Loddiges (London), in his catalogue of 1836, a name adopted by Loudon two years later in Arboretum et Fruticetum Britannicum, 3: 1398, 1838, but later sunk as a synonym for 'Horizontalis'.
The American Elm cultivar Ulmus americana 'Incisa' was first described by Loudon in 1838.
The Wych Elm cultivar Ulmus glabra 'Albo-Variegata' was first mentioned by Weston in 1770 as U. glabra var. variegata. An U. campestris latifolia albo-variegataHort. was distributed by the Späth nursery, Berlin, from the 1890s to the 1930s.
The Wych Elm cultivar Ulmus glabra 'Minor' was described by Loudon in Arboretum et Fruticetum Britannicum 3: 1398, 1838.
The Wych Elm cultivar Ulmus glabra 'Nigra', commonly known as the Black Irish Elm, was found in the Kilkenny area c.1770 by the father of nurseryman John Robertson of Kilkenny, who later cultivated it. Robertson stated that he had not seen the form outside Ireland. It was listed by Loddiges (1830) as Ulmus nigra, and described by Loudon in Arboretum et Fruticetum Britannicum (1838), as Ulmus montana nigra. 'Nigra' is not mentioned in either Elwes and Henry's or Bean's classic works on British trees.
The elm cultivar Ulmus 'Ramulosa' [: 'twiggy'], Floetbeck elm, was raised in the Floetbeck nurseries, Hamburg, by James Booth & Son, and was first mentioned by Loudon in Arboretum et Fruticetum Britannicum (1838) as Ulmus montana glabra var. ramulosaBooth, but without description. It does not, however, appear in Booth's 1838 list. Loudon listed the tree in a group including Downton Elm, Scampston Elm, and Ludlow Elm, so Green's wych cultivar attribution appears to be an error.
The elm cultivar Ulmus 'Rugosa' [:'wrinkled', the leaves], was first listed in Audibert's Tonelle (1817), as "U. campestris Linn. 'Rugosa' = orme d'Avignon [Avignon elm] ", but without description. A description followed in the Revue horticole, 1829. Green (1964) identified this cultivar with one listed by Hartwig and Rümpler in Illustrirtes Gehölzbuch (1875) as Ulmus montana var. rugosaHort.. 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. rugosaMasters, Masters naming the tree maple-bark elm. Ulmus montana was used at the time both for wych cultivars and for some cultivars of the Ulmus × hollandica group.
The Field Elm cultivar Ulmus minor 'Concavaefolia' was briefly described by Loudon in Arboretum et Fruticetum Britannicum (1838), as Ulmus campestris var. concavaefolia. A fuller description followed in Petzold and Kirchner 's Arboretum Muscaviense (1864). Henry noted that Loudon's "insufficiently described" U. campestris var. concavaefolia seemed to be identical with the field elm cultivar 'Webbiana', a view repeated by Krüssmann.
The Field Elm cultivar Ulmus minor 'Cucullata', the Hooded elm, was listed by Loddiges of Hackney, London, in their catalogue of 1823 as Ulmus campestris cucullata, and later by Loudon in Arboretum et Fruticetum Britannicum (1838), as U. campestris var. cucullata.
The Field Elm cultivar Ulmus minor 'Erecta' was identified by Loudon in Arboretum et Fruticetum Britannicum, 3: 1396, 1838 as Ulmus campestris var erecta.
The elm cultivar Ulmus 'Hertfordensis Latifolia' was mentioned by Boulger in Gardener's Chronicle II. 12: 298 1879, but without description.
The elm cultivar Ulmus 'Hertfordensis Angustifolia' was mentioned by Boulger in Gardener's Chronicle II. 12: 298 1879, but without description.
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, 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. viscosaAudibert was later sunk by Melville as U. × hollandica.
The cultivar Ulmus 'Virens', the Kidbrook Elm, is an elm of unknown origin. It was first identified by Masters as U. virens in Hortus Duroverni 67, 1831, and later by Loudon in Arboretum et Fruticetum Britannicum, 3: 1376, 1838, as U. campestris virens. Described in some detail by Elwes & Henry (1913) as a form of Field Elm but classified as U. × hollandica by Green, the tree is not mentioned in Bean's classic works on British trees.
The American Elm cultivar Ulmus americana 'Folia Aurea Variegata' was first described by Jäger in Die ziergehölze der Gärten und parkanlagen, 548, 1865.
The possible Field Elm cultivar U. minor 'Planifolia' was listed by Loudon in Arboretum et Fruticetum Britannicum (1838) as Ulmus campestris (:minor) var. planifolia, the flat-leaved elm. Green opined that the species was uncertain.
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".
Ulmus glabra 'Australis' is a Wych Elm cultivar described by Loudon in 1838, from a tree in the Royal Horticultural Society garden, as U. montana var. australisHort..
The Field Elm cultivar Ulmus minor 'Viminalis Betulaefolia' (:'birch-leaved') is an elm tree of uncertain origin. An U. betulaefolia was listed by Loddiges of Hackney, London, in the catalogue of 1836, an U. campestris var. betulaefolia by Loudon in Arboretum et Fruticetum Britannicum (1838), and an U. betulifoliaBooth by the Lawson nursery of Edinburgh. Henry described an U. campestris var. betulaefolia at Kew in 1913, obtained from Fulham nurseryman Osborne in 1879, as "scarcely different from var. viminalis ". Melville considered the tree so named at Kew a form of his U. × viminalis, while Bean (1988), describing U. 'Betulaefolia', likewise placed it under U. 'Viminalis' as an apparently allied tree. Loudon and Browne had noted that some forms of 'Viminalis' can be mistaken for a variety of birch. An U. campestris betulaefolia was distributed by Hesse's Nurseries, Weener, Germany, in the 1930s.
The Field Elm cultivar Ulmus minor 'Viminalis' (:'willow-like'), occasionally referred to as the Twiggy Field Elm, was raised by Masters in 1817, and listed in 1831 as U. campestris viminalis, without description. Loudon added a general description in 1838, and the Cambridge University Herbarium acquired a leaf specimen of the tree in 1866. Moss, writing in 1912, said that the Ulmus campestris viminalis from Cambridge University Herbarium was the only elm he thought agreed with the original Plot's elm as illustrated by Dr. Plot in 1677 from specimens growing in an avenue and coppice at Hanwell near Banbury. Elwes and Henry (1913) also considered Loudon's Ulmus campestris viminalis to be Dr Plot's elm. Its 19th-century name, U. campestris var. viminalis, led the cultivar to be classified for a time as a variety of English Elm. On the Continent, 'Viminalis' was the Ulmus antarcticaHort., 'zierliche Ulme' [:'dainty elm'] of Kirchner's Arboretum Muscaviense (1864).
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.