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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 sagraeana ： ウィキペディア英語版 Quercus sagraeana ''Quercus sagraeana'', the Cuban oak, is a medium-sized evergreen tree native to western Cuba in the Cuban pine forests ecoregion. == Nomenclature == The Cuban oak was first described by Nuttall (1842) as ''Quercus sagraeana'' based on the specimen collected by Ramón de la Sagra. Using the same specimen, but apparently unaware of the original name, Richard (1853) named the Cuban oak ''Q. cubana''. Trelease (1924) did not view ''Q. sagraeana'' as a species in its own right but as a variety of ''Q. virginiana''. He proposed the name ''Q. virginiana'' var. ''sagraeana''. Muller (1961) renamed it ''Q. oleoides'' var. ''sagraeana'', hypothesizing that the Cuban oak population was a subspecies of ''Q. oleoides'', originating from the Yucatán region of Mexico, but with introgression from ''Q. geminata'' coming from Florida. He considered the morphologically variable Cuban population a hybrid swarm that had stabilized and was distinct from the other live oaks of the series ''Virentes''. A recent study of molecular genetic variation and taxonomically informative leaf morphology shows that the Cuban oak shows little evidence of hybrid origin and is most similar to ''Q. virginiana'', but distinct enough to be regraded as a separate species, ''Q. sagraeana''. 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 sagraeana」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.