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Louisiana iris is a taxonomic group (''Iris'' ser. ''Hexagonae'') of five iris species native to Louisiana and surrounding regions of the southeastern United States: ''Iris fulva'', ''Iris hexagona'', ''Iris brevicaulis'', ''Iris giganticaerulea'', and ''Iris nelsonii''.〔 The ''Hexagonae'' series name is derived from the first Louisiana iris species to inhabit the series, ''Iris hexagona''.〔(【引用サイトリンク】 title=The Species of Louisiana Iris ) 〕 The name "Louisiana iris" comes from the naturalist and artist John James Audubon. In the 1821, a Louisiana flag (''Iris fulva'') was painted by Joseph Mason, then Audubon added his pair of parula warblers. He then used the term 'Louisiana Flag' to describe the painting.〔Charlotte Seidenberg 〕 Each recognized species has noticeable phenotypic and habitat differences, yet similarities between their phenotypes and habitats can be drawn. These similarities are partially a result of their similar phylogenies. Many of the species are closely related, some a result of interbreeding, as in the most recent discovery of the Abbeville Red Iris, ''Iris nelsonii''.〔 The five Louisiana irises are often categorized as "The Reds" or "The Blues" according to their corolla color. "The Blues", species ''Iris brevicaulis'', ''Iris hexagona'', and ''Iris giganticaerulea'', typically have blue-purple corollas, with rare white forms.〔 "The Reds", species ''Iris fulva'' and ''Iris nelsonii'', typically have red-orange corollas, with rare yellow forms.〔 Between 1920s and 1930s, Dr. John K. Small extensively studied irises in both Florida and Louisiana and named over 80 new species. Including ''Iris savannarum'', Iris kimballiae, Iris albispiritus and Iris rivularis.〔(【引用サイトリンク】url=http://zydecoirises.com/Species/Florida/FloridaIrises.htm )〕 Subsequent research has determined that only ''Iris savannarum'' is a true species and the others are synonyms of it. In 1990, the Louisiana iris was voted the state wildflower.〔 The state flower is the magnolia blossom.〔(【引用サイトリンク】url=http://www.statesymbolsusa.org/Louisiana/wildflower_la_iris.html )〕 ==''Iris fulva''== ''Iris fulva'', common name "copper iris", is noted by its fulva color of rusty red to brownish orange or rare yellow forms.〔(【引用サイトリンク】 title= Iris Fulva )〕 In 1812, this species was named by J.B. Ker-Gawler from a specimen found in the surrounding New Orleans area.〔 The red color of the fulva contributes to the red modern hybrids found in the surrounding habitats that the iris thrives. It is found in Louisiana, along with other Mississippi Valley habaitats in Illinois, Kentucky, and Ohio.〔 Other notable physiological characteristics of the species are its small size (3-4 inches in diameter) and drooping petals.〔 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「Louisiana iris」の詳細全文を読む スポンサード リンク
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