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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 Isoetes eludens ： ウィキペディア英語版 Isoetes eludens ''Isoetes eludens'' is an aquatic plant in the genus commonly known as quillwort that is native to the Kamiesberg Mountains in Namaqualand, South Africa. So far it is known to grow only in a single !gau (gnamma), a small temporary pool formed in a hollowed out area of granite rock. It has likely been growing in that region for millions of years, but was only discovered in 2007 and described in 2009. The specific epithet ''eludens'' refers to the fact that it eluded discovery, in spite of several searches in recent years in the area for new quillwort species. ==Description== The genus ''Isoetes'', the quillworts, are related to ferns, with fossil evidence dating back more than 150 million years. ''Isoetes eludens'' grows only tall, with root hairs growing under the soil surface. It has up to twelve green sporophylls, or leaves that produce spores, growing in a tight cluster. Like other quillworts, the sporophylls are hollow and rounded like a quill. The spore-producing part of the leaf is at the base, producing both megaspores and microspores.〔 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「Isoetes eludens」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.