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Ralfsia verrucosa : ウィキペディア英語版 | Ralfsia verrucosa
''Ralfsia verrucosa'' is a species of crustose brown seaweed in the family Ralfsiaceae. It grows intertidally in temperate waters around the world. In South Africa it is part of a mutualistic relationship with a limpet. ==Description== ''Ralfsia verrucosa'' forms roughly circular patches that grow outwards from the centre with the central parts sometimes becoming detached from the substrate. The thallus is deep brown or blackish-brown and is about thick. It has a distinct, often pale-coloured, margin which is formed from erect filaments which are fused together and that curve upwards from other prostrate filaments. The patches of thalli are thick, some in diameter and often coalescing to form larger patches. The surface is smooth and hard.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Ralfsia verrucosa」の詳細全文を読む
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