| RHODOPHYTA : Gigartinales : Dumontiaceae | RED ALGAE |
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| Dilsea carnosa |
Description: Thallus a broad oval frond arising from a discoid holdfast the short stipe expanding into a thick flat frond up to 50 cms long and 10 cms or so broad. Leatherly and deep blood red in colour, older fronds often split down to the stipe.
Habitat: Common. Epilithic in deep rock pools of the low littoral into the sublittoral to depths of more than 35 m.
Distribution: Around the British Isles including the Shetlands and the Channel Islands. Europe: Portugal, Spain, France, the Baltic, Norway, Spitzbergen and Iceland.
Similar Species: Palmaria palmata, the edible "Dulse" is vaguely similar, however Dilsea is much more leatherly and less branched.
Key Identification Features:
Distribution Map from NBN: Dilsea carnosa at National Biodiversity Network mapping facility, data for UK.
iNaturalist: Dilsea carnosa at iNaturalist World Species Observations database.
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| Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Dilsea carnosa. (Schmidel) Kuntze. [In] Encyclopedia of Marine Life of Britain and Ireland. https://habitas.org/mbdp/species.php?item=ZM2560. Accessed on 2026-11-01 |