RHODOPHYTA : PALMARIALES : PalmariaceaeRED ALGAE

Palmaria palmata (Linnaeus) Kuntze


Description: Growing as a flat blade from a discoid holdfast and dividing into a few broad segments to a maximum length of 50 cm and branching from the margins. Dark brownish-red.

Habitat: Common. Epilithic or epiphytic especially on Laminaria stipes. Lower littoral and sublittoral to about 20 m on all except the most exposed rocky shores.

Distribution: Generally distributed around the British Isles. Europe: Portugal, Atlantic coasts of Spain and France, Baltic Sea, Norway, Faroes, Spitzbergen and Iceland. Greenland. Atlantic coasts of North America: Canada, Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut and New Jersey. Further afield: Arctic Sea from the White Sea and Baffin Bay. Pacific coasts of North America, Alaska to California, Japan and Korea.

Similar Species: Dilsea carnosa is similar but very leathery, usually undivided although older blades may split.

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
http://www.habitas.org.uk/marinelife/species.asp?item=ZM2420

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