Hakone Fern (Hakone Fern) - Hakone Fern (English name) Adiantum monochlamys

Japanese: ハコネシダ(箱根羊歯) - ハコネシダ（英語表記）Adiantum monochlamys

An evergreen fern of the Brackenaceae family, also known as Hakonesou or Ichoshinobu. It is found in warm areas of Japan, southern Korea, Taiwan, and mainland China. It grows on the ground or on rocks in mountainous areas where it is not too shady. The rhizomes are short and creeping or ascending, and are densely covered with thin black-brown scales along with the base of the petiole. The leaves are pinnately compound, reaching a length of about 40 cm, with the blade pinnately divided 3 to 4 times and the lobes inverted triangular ovate. The petioles are long and shiny, purple-brown or reddish-brown. Usually only one sporangium is produced at the tip of the pinnae. The spores are tetrahedral.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

ワラビ科の常緑性シダ植物で，ハコネソウ，イチョウシノブなどともいう。日本の暖地，朝鮮南部，台湾，中国大陸に分布する。山地のあまり陰湿でない地上や岩上に生える。根茎は短く匍匐あるいは斜上し，葉柄基部とともに黒褐色の細い鱗片を密につける。葉は長さ 40cm前後に達し羽状複葉で，葉身は3～4回羽状に分れ，裂片は倒三角状卵形。葉柄は紫褐色または赤褐色で光沢があり長い。胞子嚢群は小羽片の先端部に普通1個だけつく。胞子は四面体型。

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