IUCN threat status:

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Comprehensive Description

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Thallus flat with fairly regular dichotomous branches with parallel sides to 30 cms long, the tips usually bifid. Outer layer of small cells enclosing a single layer of large cells no more than one cell thick even near the base. Branches 3 to 12 mm wide, membranous without a mid-rib. Dictyota spiralis; Cutleria multifida.


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© National Museums Northern Ireland and its licensors

Source: Encyclopedia of Marine Life of Britain and Ireland

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