|CHROMOPHYTA : DICTYOTALES : Dictyotaceae||BROWN ALGAE|
Description: 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.
Habitat: Common, in places abundant. Littoral rock pools and sublittoral.
Distribution: Throughout the British Isles from the Shetlands to the Channel Islands, though less common on the eastern shores of England. Europe: Mediterranean, Azores, Portugal, Atlantic coasts of Spain and France, Baltic Sea and Norway. Atlantic coast of North America: Virginia. Further afield: Jamaica, Salvage Islands, Canary Islands, Mauritania to South Africa, Mauritius, Australia and Tasmania, Japan and Phillipine Islands.
Similar Species: Dictyota spiralis; Cutleria multifida.
Key Identification Features:
Distribution Map from BioMar data for Ireland - Google Earth map: download this placemark (not got Google Earth installed?)
Distribution Map from NBN: Grid map (fast) : Interactive map (slow, requires login to view records) : National Biodiversity Network mapping facility, data for UK.
|Morton, O. & Picton, B.E., 2010. [In] Encyclopedia of Marine Life of Britain and Ireland |
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