Dicranopteris linearis (English spelling) Dicranopterislinearis

…About 130 species in three genera are distributed in tropical and subtropical regions around the world. There are three species in Japan, and in some regions, Urajiro is called Ooshida (big fern) in contrast to Koshida Dicranopteris linearis (Burm.f.) Underw., which is used with Matsutake mushrooms. In the tropics, there are species that have dozens of pairs of pinnae and can climb up to several meters on trees, but even in these cases, the stem is just a rhizome that crawls underground, and the above-ground part corresponds to a single leaf, making it an example of the largest leaf in the world. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…3属約130種が全世界の熱帯･亜熱帯に分布している。日本には3種あり，マツタケに添えるコシダDicranopteris linearis (Burm.f.) Underw.に対してウラジロのことをオオシダ(大羊歯)と呼ぶ地方もある。熱帯には羽片が何十対もあり，樹上に十数mもはいあがる種があるが，その場合でも茎は地中にはう根茎だけで，地上部が1枚の葉に相当し，最も大きな葉の例である。…

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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