Kotaniwatari - Crossing the kotani

An evergreen fern of the Acanthaceae family. It grows in bunches of slender, simple leaves from a short rhizome, and the base of the leaf blade is heart-shaped and spreads out to form ear-like leaves. On both sides of the midvein, there are long, oblique groups of sporangia, and the envelope is of the same shape. It is found in the cool temperate zones of the Northern Hemisphere.

[Makoto Nishida]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

チャセンシダ科の常緑性シダ。短い根茎から細長い単葉を束生し、葉身の基部は心臓形で左右に広がり耳状となる。中脈の両側に斜めに長い胞子嚢(ほうしのう)群がつき、包膜も同形である。北半球の冷温帯に分布する。

［西田　誠］

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