paraphysics

Japanese: paraphysis
paraphysics

… Many xerophytes adapted to dry regions such as deserts have hairs covering the surface of the plant body, while many undergrowths in tropical jungles and aquatic plants do not have hairs. In many cases, buds are covered with hairs to protect young leaves and young shoots, and some ferns have paraphysis, which protect young sporangia without an intumescent membrane, and these are also a type of hair in a broad sense. Hairs that can be considered a type of sensory organ are called sensory hairs or touch hairs, and those on the cornflower are simple single-celled projections, while those on the alder are multicellular hairs with a complex structure. …

*Some of the terminology that mentions "paraphysis" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…砂漠などの乾燥地帯に適応した乾生植物には,植物体の表面を毛で覆われたものが多く,熱帯のジャングルの下生えや水生植物では毛の発達しないものが多い。若葉や若い苗条を保護するように,芽が毛で覆われている例も多いし,シダ類の包膜のない胞子囊群では若い胞子囊を保護する側糸paraphysisをもつものがあり,これも広い意味では毛の一種である。 一種の感覚器官ともいうべき毛が感覚毛とか感触毛とかいわれるもので,ヤグルマギクのものは簡単な単細胞突起であるが,ムジナモのものは複雑な構造をもった多細胞毛である。…

※「paraphysis」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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