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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 toximontana ： ウィキペディア英語版 Isoetes toximontana ''Isoetes toximontana'' is a plant species native to the Northern Cape and Western Cape regions of South Africa. It is known from only 3 sites.〔(IUCN Red List of Threataned Species )〕 The type locality is on the slopes of (Gifberg ), a mountain forming part of the eastern boundary of the Olifants River Valley. The name "Gifberg" means "poison mountain"; this is in reference to a poisonous tree called "gifboom", ''Euphorbia virosa'', that is endemic to the area. The specific epithet "''toximontana''" is a Latin translation of the Afrikaans name of the mountain. 〔(Gifberg )〕 ''Isoetes toximontana'' is an herb which grows in shallow water, very often emerging above the surface. Leaves are 3-10 per plant, up to 42 mm long, elliptical in cross-section. Mega- and microsporophylls may be found on the same plant. Megaspores number up to 36 per sporangium, gray-green, drying olive green, each up to 320 μm in diameter, covered with tubercules (bumps) over most of the surface. Microspores are brown, up to 25 μm in diameter. 〔(Musselman, Lytton J. & Roux, Jacobus Petrus. 2002. ''Isoetes toximontana'' (Isoetaceae), a new quillwort with green megaspores from the Northern Cape of South Africa. Novon 12:504-507. )〕 ==References== 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 toximontana」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.