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Ulmus chenmoui : ウィキペディア英語版 | Ulmus chenmoui
''Ulmus chenmoui'' W. C. Cheng, commonly known as the Chenmou, or Langya Mountain, Elm, is a small deciduous tree from the more temperate provinces of Anhui and Jiangsu in eastern China, where it is found at elevations below 200 m on the Langya Shan and Baohua Shan mountains.〔Fu, L. & Jin J. (eds). (1992). ''China Red Data Book. Rare and endangered plants. Vol. 1''. Science Press, Beijing.〕〔Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) ''Flora of China'', Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. ()〕 ==Description==
Although the tree can grow to a height of < 20 m, the slender trunk rarely exceeds 0.5 m d.b.h.; the bark exfoliates in irregular flakes. The wing-less twigs bear comparatively large obovate to oblong leaves < 18 cm in length (), with doubly serrate margins and caudate to acuminate apices. Leaves of specimens grown in the USA developed a thick pubescence, giving them a greyish appearance, but this has not been reciprocated in English - grown trees. The perfect wind-pollinated apetalous flowers are produced on second-year shoots in March; the samarae are obovate < 25 mm long by 17 mm wide and ripen in April.
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 chenmoui」の詳細全文を読む
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