Pheasant Fern - Pheasant Fern

Japanese: キジノオシダ - きじのおしだ

An evergreen fern of the family Lycopodium (illustration) that grows in shady areas of mountain forests. The sporophyll and vegetative leaves are clearly distinguishable, and the nearly upright sporophyll can reach a height of 1m. The rhizome is erect and the leaves grow in clusters. There are no scales or hairs anywhere on the plant. The leaves are dimorphic. The vegetative leaves are simple pinnate, the veins are forked, and they do not form a net. The pinnae of the sporophyll are narrow, and sporangia are attached along the veins on the underside, with the margins of the pinna everted to cover them like an envelope. It is found in the Kanto and Hokuriku regions, westward to Honshu, Shikoku, and Kyushu, and is distributed on Jeju Island and in China (provinces along the Yangtze River).

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

山林中の陰地に生じるキジノオシダ科の常緑性シダ（イラスト）。胞子葉と栄養葉がはっきり区別でき，ほぼ直立する胞子葉は高さ1mに達する。根茎は直立し，葉を叢生（そうせい）する。鱗片も毛も，植物体のどこにも生じない。葉は2形を示す。栄養葉は単羽状，葉脈は叉（さ）状分岐をし，網目をつくらない。胞子葉の羽片は狭くなり，裏面の脈に沿って胞子囊がつき，羽片の辺縁が反転して包膜のようにおおう。関東地方と北陸地方から西の本州と四国，九州にみられ，済州島と中国(長江沿いの各省)に分布する。

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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