A marine red alga of the family Porphyrae (illustration) found in oceans around the world except for cold seas. The body is cylindrical or flat, and the branches are often intertwined to form a mass. Most grow to a height of 10-20cm, but some species grow even larger. More than 10 species grow off the coast of Japan alone, and some of the more commonly seen species include H. charoides Lamour, H. saidana Holmes, H. variabilis Okamura, and H. japonica Tanaka. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
寒海域を除く世界各地の海に分布するイバラノリ科の海産紅藻(イラスト)。体は円柱状または扁平で,分枝した枝は互いに絡み合って全体はかたまりをつくるものが多い。高さは10~20cmのものが多いが,さらに大きくなる種類もある。日本沿岸だけでも10種以上が生育し,よく見られる種類として,イバラノリH.charoides Lamour.,サイダイバラH.saidana Holmes,タチイバラH.variabilis Okamura,カギイバラノリH.japonica Tanakaなどがある。
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