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''Iostephane'' is a genus of Mexican flowering plants in the sunflower family.〔(Bentham, George. 1873. Genera Plantarum 2: 368 ) in Latin〕〔Strother, J. L. 1983. ''Pionocarpus'' becomes ''Iostephane'' (Compositae: Heliantheae): a synopsis. Madroño 30: 34-48.〕〔(Tropicos, ''Iostephane'' Benth. )〕 The species are rosette-forming herbaceous perennials that produce relatively large heads with yellow or purple (''I. heterophylla'') rays. They have large, somewhat quadrate cypselae (achenes), that may either have or lack a pappus. Molecular phylogenetic studies 〔Schilling, E. E. and J. L. Panero. 1991. Evidence for a close relationship between ''Iostephane'' and ''Viguiera'' sect. ''Maculatae'' (Asteraceae: Heliantheae). American Journal of Botany 78: 1054-1062.〕 suggested that there is an unexpectedly close relationship between ''Iostephane'' and ''Dendroviguiera'' 〔Schilling, E, E. and J. L. Panero 2011. A revised classification of subtribe Helianthinae (Asteraceae: Heliantheae). II. Derived lineages. Botanical Journal of the Linnean Society 167: 311-331.〕 (''Viguiera'' sect. ''Maculatae''), a genus of shrubs and trees that is also endemic to Mexico. ;Species〔 # ''Iostephane heterophylla'' (Cav.) Benth. - widespread from Chihuahua to Oaxaca # ''Iostephane madrensis'' (S.Wats.) Strother - Chihuahua # ''Iostephane papposa'' J. J. Fay - Oaxaca # ''Iostephane trilobata'' Hemsl. - 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「Iostephane」の詳細全文を読む スポンサード リンク
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