|
''Brickellia'' is a North American genus of about 100〔(【引用サイトリンク】 ''Brickellia'' )〕 to 110〔(''Brickellia''. ) The Jepson eFlora 2013.〕 species of plants in the aster family, Asteraceae, known commonly as brickellbushes. They are found in Canada, the United States, Mexico, and Central America.〔 Many species are native to the American southwest, especially Texas. ''Brickellia'' is among the more basal lineages of the Eupatorieae and should not be assigned to a subtribe pending further research.〔Schmidt, G. J. and E. E. Schilling. (2000). (Phylogeny and biogeography of ''Eupatorium'' (Asteraceae: Eupatorieae) based on nuclear ITS sequence data. ) ''Am. J. Bot.'' 87(5), 716-26. PMID 10811796〕 They are mostly woody perennial shrubs. Some species have a very strong pleasant scent, while others smell distasteful. All contain high amounts of essential oils. Germacrene D, a natural insecticide, is found in ''B. veronicifolia'' and probably other species, if not all.〔Rivero-Cruz, B., et al. (2006). (Qualitative and quantitative analysis of the active components of the essential oil from ''Brickellia veronicaefolia'' by nuclear magnetic resonance spectroscopy. ) ''Journal of Natural Products'' 69(8), 1172-76. PMID 16933870〕 Regardless their chemical defense, brickellbushes are food for caterpillars of certain Lepidoptera. These include the noctuid moths ''Schinia trifascia'', ''Schinia oleagina'', which is known only from ''Brickellia'', ''Schinia buta'', which is only known from ''B. californica'', and ''Schinia gracilenta'', which is only known from ''B. eupatorioides''. The genus is named for John Brickell, 1748–1809, Irish-born physician and naturalist〔 == Classification == The genera ''Brickelliastrum'' (United States and Mexico), ''Asanthus'' (United States and Mexico), ''Dyscritogyne'' (Mexico), and ''Steviopsis'' have been separated from ''Brickellia'' by many 20th century authors (and all four combined into ''Steviopsis'' by some). Their correct placement is still debated,〔(【引用サイトリンク】 ''Brickelliastrum'' )〕 but molecular phylogenetic analysis has provided evidence that ''Brickelliastrum'', ''Asanthus'', and ''Steviopsis'' (including ''Dyscritogyne'', which is not distinct from ''Steviopsis'') represent distinct lineages, and should be recognized as separate from ''Brickellia'', while ''()'', ''()'' and ''()'' should be treated as synonyms.〔Schilling, E. E., et al. (2013). (Relationships of ''Asanthus'' (Asteraceae, Eupatorieae). ) ''Systematic Botany'' 38(1), 253-58.〕〔Schilling, E. E., et al. (2015). Bricklebush (Brickellia) phylogeny reveals dimensions of the great Asteraceae radiation in Mexico. Molecular Phylogenetics and Evolution. Volume 85, Pages 161–170. ()〕 ;Species〔(The Plant List search for ''Brickellia'' )〕〔(''Brickellia''. ) ITIS.〕〔(''Brickellia'' species records. ) Flora of North America.〕〔(GRIN Species Records of ''Brickellia''. ) Germplasm Resources Information Network (GRIN).〕 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「Brickellia」の詳細全文を読む スポンサード リンク
|