Iroro (English spelling) Ishige foliacea

Japanese: イロロ（英語表記）Ishige foliacea

Brown algae, Chlorales, family Stonecropaceae. The algae are leathery, bifurcated several times, and cylindrical at the base. They attach to rocks in the intertidal zone where the waves are not too rough. They can reach a length of 20 cm. They often form large colonies. Along with Ishige and Selaginella nigricans, they are known as representative zonal colony-forming algae in the middle intertidal zone on the Pacific side of Honshu. They are also found on the Korean Peninsula and the coasts of China.

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

Japanese:

褐藻類ナガマツモ目イシゲ科。藻体は革質，数回二叉に分れた葉状をなし，基部は円柱状となる。波があまり荒くない潮間帯の岩石上に固着する。長さ 20cmに達する。しばしば大群落となる。イシゲ，イワヒバなどとともに本州の太平洋側中部潮間帯中位の代表的帯状群落形成藻として知られる。朝鮮半島，中国沿岸にも分布する。

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