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・ Ulmus minor 'Reverti'
・ Ulmus minor 'Rubra'
・ Ulmus minor 'Rueppellii'
・ Ulmus minor 'Sarniensis'
・ Ulmus minor 'Schuurhoek'
・ Ulmus minor 'Silvery Gem'
・ Ulmus minor 'Sowerbyi'
・ Ulmus minor 'Stricta'
・ Ulmus minor 'Toledo'
・ Ulmus minor 'Tortuosa'
・ Ulmus minor 'Umbraculifera Gracilis'
・ Ulmus minor 'Umbraculifera'
・ Ulmus minor 'Virgata'
・ Ulmus minor subsp. minor
・ Ulmus minor subsp. sarniensis 'Purpurea'
Ulmus minor var. suberosa
・ Ulmus parvifolia
・ Ulmus parvifolia 'A. Ross Central Park' = Central Park Splendor
・ Ulmus parvifolia 'Blizzard'
・ Ulmus parvifolia 'BSNUPF' = Everclear
・ Ulmus parvifolia 'Burgundy'
・ Ulmus parvifolia 'Burnley Select'
・ Ulmus parvifolia 'Catlin'
・ Ulmus parvifolia 'Chessins'
・ Ulmus parvifolia 'Churchyard'
・ Ulmus parvifolia 'Cork Bark'
・ Ulmus parvifolia 'D.B.Cole'
・ Ulmus parvifolia 'Drake'
・ Ulmus parvifolia 'Dwarf Weeper'
・ Ulmus parvifolia 'Dynasty'


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Ulmus minor var. suberosa : ウィキペディア英語版
Ulmus minor var. suberosa

''Ulmus minor'' var. ''suberosa'' (Moench) Rehder – the so-called 'Cork-barked elm', ''korkulme'' (Germany) or ''wiąz korkowa'' (Poland) – is the name given in some textbooks and botanical collections to a slow-growing or dwarf form of conspicuously suberose Field Elm of disputed status, considered a distinct variety by some botanists, among them Henry (1913),〔Elwes, H. J. & Henry, A. (1913), ''(The Trees of Great Britain & Ireland )'', Vol. VII, p.1888; Private publication, Edinburgh〕 Krüssman (1984),〔Krüssman, Gerd, ''Manual of Cultivated Broad-Leaved Trees & Shrubs'' (1984 vol. 3)〕 and Bean (1988),〔Bean, W. J., ''Trees and shrubs hardy in Great Britain'', 8th edition (1988), Murray, London; p.643〕 and sometimes cloned and planted as a cultivar. Henry said the tree "appears to be a common variety in the forests of central Europe", Bean noting that it "occurs in dry habitats". Green and Richens, however, dismissed var. ''suberosa'' as just a genetically random, maritime or juvenile form of ''U. minor'', insufficiently differentiated to merit varietal status, its name a relic of taxonomic conservatism.〔Green, P. S. (1964). Registration of cultivar names in Ulmus. ''Arnoldia'', Vol. 24. Arnold Arboretum, Harvard University. ()〕〔Richens, R. H., ''Elm'' (Cambridge 1983), p.83, p. 278〕 Richens noted (1983) that some Soviet botanists still accorded the tree species status, as ''U. suberosa''. By the proposed rule that known or suspected clones of ''U. minor'', once cultivated and named, should be treated as cultivars, the tree would be designated ''U. minor'' 'Suberosa'.〔Coleman M. (2002) 'British elms.' ''British Wildlife'' 13 (6): 390-395.〕

==Description==
Henry, having seen specimens in Slavonia, Croatia, and in Gisselfelde, Denmark, as well as at Kew, described the tree as having "branchlets of the second to the tenth year furnished with corky wings", but with "leaves and samarae as in the type". Krüssman and Bean report it to be "rather dwarf" in comparison with most ''U. minor''. The Kew specimens (see below) suggest that its slow growth is probably not related to dry habitat. Given the widespread occurrence of variable suberose Field Elm across Europe, it is likely that most photographs of Field Elm with corky flanges on branches do not show the cultivated dwarf variety. Young and semi-mature trees of some Ulmus × hollandica hybrids, notably Ulmus × hollandica 'Major', the 'Dutch Elm' of Britain and Australasia, also develop corky bark.

Image:Ulmus carpinifolia suberosa 2 beentree.jpg|''U. minor'' var. ''suberosa'' Białowieża forest, Poland
Image:Ulmus carpinifolia suberosa 1 beentree.jpg|''U. minor'' var. ''suberosa'' Białowieża forest, Poland


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