Blue vine - Blue vine

Japanese: アオネカズラ - あおねかずら

An epiphytic perennial fern of the Polypodiaceae family (illustration), which opens its leaves in early autumn and sheds them in midsummer. The rhizome is long and creeping, gray-green, 4-5 mm in diameter, and the scales fall off quickly, leaving the gray-green rhizome exposed. The Japanese name, Aonekazura, comes from this. The leaves are single-pinnate, deeply lobed, broadly lanceolate to narrowly ovate, 15-40 cm long, covered on both sides with fine white soft hairs, and feel velvety to the touch. The leaf surface is white-green, and the veins form a large row of meshes on both sides of the rachis, with one free vein within each mesh, on which fairly large sporangia grow.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

初秋に開葉し，盛夏に落葉する，ウラボシ科の着生多年生シダ植物（イラスト）。根茎は長くはい，灰緑色で径4～5mm，鱗片は早く落ちるので，灰緑色の根茎がむき出しの状態になる。和名の青根カズラは，これに由来する。葉は単羽状深裂，広披針形から狭卵形，長さ15～40cm，表裏ともに細かい白色の軟毛でおおわれ，触れるとビロードのような手ざわりがある。葉面は白緑色，葉脈は羽軸の両側に1列の大きな網目をつくり，それぞれの網目内に1本の遊離脈があり，その上にかなり大型の胞子囊群をつける。

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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