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In general, an involucre is a covering. It may refer to: * in flowering plants: an involucral bract, or a pair, whorl or other collection of such bracts, surrounding an inflorescence, particularly in: * * Asteraceae (Compositae) * * Apiaceae (Umbelliferae) * * Euphorbiaceae * * Proteaceae * in some fungi: the involucrum, peridium or Volva * in Marchantiophyta (liverworts), a short tube surrounding one or more antheridia or archegonia or a developing sporophyte * in the fern family Hymenophyllaceae: the cup-shaped indusium surrounding a cluster of sporangia * in the Fagaceae: a term sometimes misused for the cupule surrounding developing nuts (e.g., the cap of an acorn) 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「Involucre」の詳細全文を読む スポンサード リンク
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