Ferns are a group of polyphyletic vascular plants that remain at the spore stage and are not considered to be a systematic group. Ferns are generally classified as true ferns, but other ferns include the psilots, lycopods, and horsetails (collectively known as fernallies). *Some of the terminology that mentions "psilotum" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…多系の維管束植物のうち,胞子植物段階にとどまっている群で,系統的なまとまりではないと考えられている。一般にシダ類といわれるものは真正シダ類fernで,シダ植物にはほかにマツバラン類psilotum,石松(せきしよう)類lycopod,トクサ類(有節類)horsetail(これらをひっくるめてfernalliesという)が含まれる。 ※「psilotum」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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