翻訳と辞書 Words near each other ・ Ulmus americana 'Markham' ・ Ulmus americana 'Miller Park' ・ Ulmus americana 'Minneapolis Park' ・ Ulmus americana 'Moline' ・ Ulmus americana 'Morden' ・ Ulmus americana 'New Harmony' ・ Ulmus americana 'Nigricans' ・ Ulmus americana 'Patmore' ・ Ulmus americana 'Pendula' ・ Ulmus americana 'Penn Treaty' ・ Ulmus americana 'Princeton' ・ Ulmus americana 'Pyramidata' ・ Ulmus americana 'Queen City' ・ Ulmus americana 'Sheyenne' ・ Ulmus americana 'Skinner Upright' ・ Ulmus americana 'St. Croix' ・ Ulmus americana 'Star' ・ Ulmus americana 'Valley Forge' ・ Ulmus americana 'Variegata' ・ Ulmus americana 'Vase' ・ Ulmus americana 'Washington' ・ Ulmus bergmanniana ・ Ulmus bergmanniana var. bergmanniana ・ Ulmus bergmanniana var. lasiophylla ・ Ulmus canescens ・ Ulmus castaneifolia ・ Ulmus changii ・ Ulmus changii var. changii ・ Ulmus changii var. kunmingensis ・ Ulmus chenmoui Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Ulmus americana 'St. Croix' ： ウィキペディア英語版 Ulmus americana 'St. Croix' The American Elm cultivar ''Ulmus americana'' 'St. Croix' is a recent (2008) selection cloned from a large tree growing at Afton, St. Paul, which has displayed a high resistance to Dutch elm disease (DED).〔Palmer, K. ''Star Tribune'', May 5, 2009.〕 A U S patent, PP 20097, was granted in 2009. ==Description== ‘St. Croix’ has an open-grown, spreading, vase-shaped crown. The growth rate is fast and typical of the species in Minnesota. The bark is typically divided into grayish, flat-topped ridges, which are separated by roughly diamond-shaped fissures and which become indefinite in pattern in the canopy. Bark on young branches is smooth with inconspicuous lenticels. The twigs are slender, zigzag, brown, glabrous or slightly pubescent; lateral buds are about 6 mm long, ovoid, acute but not sharp-pointed, smooth or sparingly downy, chestnut-brown. Leaves are deciduous, simple, alternate, short-petioled, 2-ranked, dark green (closest to 006600 on HTML True Color Chart), 10–15 cm (4–6 inches) long, 2.5–5 cm (1–2 inches) wide and oblong-obovate to elliptical, the margin coarsely doubly serrate, the apex acuminate while the base is typically inequilateral; surfaces glabrous (smooth) or slightly scabrous (roughened) above, usually pubescent below; veins alternate, ascending, parallel and extending from central vein to apex of longest serrations. The perfect apetalous wind-pollinated flowers are vernal, appearing before the leaves unfold, born in long-pedicelled fascicles of 3 or 4. The fruit is a samara maturing in the spring as the leaves unfold; about 12 mm (½ inch) long, oval to oblong-obovate, deeply notched at apex, margin ciliate with smooth surfaces.〔Bliska, C., Bliska, P., Stennes, M., & Giblin, C. (2008). American elm tree named 'St. Croix', ''Patent Application US 20080196132 P1''.〕 () The parent tree at Afton had a d.b.h. of 1.9 m when measured in 2008. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ulmus americana 'St. Croix'」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.