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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Quercus geminata ： ウィキペディア英語版 Quercus geminata ''Quercus geminata'', commonly called sand live oak, is an evergreen oak tree native to the coastal regions of the subtropical southeastern United States, along the Atlantic Coast from southern Florida northward to southeastern Virginia and along the Gulf Coast westward to southern Mississippi,〔() "FloriData — Quercus geminata", Retrieved 2011-07-06〕 on seacoast dunes and on white sands in evergreen oak scrubs.〔 A small- to medium-sized tree, the sand live oak is scrubby and forms thickets. The bark is dark, thick, furrowed, and roughly ridged. The leaves are thick, leathery, and coarsely veined, with extremely revolute margins, giving them the appearance of inverted shallow bowls; their tops dark green, their bottoms dull gray and very tightly tomentose, and their petioles densely pubescent, they are simple and typically flat with bony-opaque margins, having a length of 0.75–4.5 inches (2–12 cm) and a width of 0.2–1.5 inches (0.5–4 cm). The male flowers are green hanging catkins. The acorns are small, 0.5–1 inch (1–2.5 cm), oblong-ellipsoid or ovoid, and are commonly born in pairs on peduncles of varying lengths.〔〔 In coastal Florida's evergreen oak scrub, the Sand Live Oak is a ubiquitous and abundant species; the threatened Florida scrub-jay is found only in Florida scrub.〔() "The University of Florida – School of Forest Resources & Conservation — Scrub", Retrieved 2011-07-08〕〔() "AN ECOLOGICAL OVERVIEW OF SCRUB HABITAT AND FLORIDA SCRUB-JAYS IN BREVARD COUNTY", Retrieved 2011-07-08〕 Live oaks, having characteristics of the sand live oak and the southern live oak (''Q. virginiana''), grow further inland. It is believed that these specimens are hybrids of ''Q. geminata'' and ''Q. virginiana''.〔 While hybridization does occur between ''Q. geminata'' and ''Q. virginiana,'' the two species are genetically and morphologically distinct. The Cuban oak, ''Q. sagraeana'', has been purported to be a hybrid〔() "Flora of North America — Quercus geminata", Retrieved 2011-07-06〕 between the sand live oak and ''Q. oleoides'', but recent evidence suggests that the Cuban oak is a separate species without hybrid origin. ==References== 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「Quercus geminata」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.