MBDP-NI: Phyllophora pseudoceranoides- Species account

Phyllophora pseudoceranoides (S.G.Gmelin) Newroth & A.R.A.Taylor ex P.S.Dixon & L.M.Irvine, 1977

Description: Thallus grows from a small discoid holdfast to 10 cms long. Stipe terete and relatively long, abruptly expands into a flat fan-shaped blade branching dichotomously several times.

Habitat: Common. Epilithic in rock pools of the lower littoral and in the sublittoral to 12 m depth.

Distribution: Widespread around the British Isles. Europe: Mediterranean, Portugal, Spain, France, Netherlands, the Baltic, Norway, Faroes and Iceland. Greenland. Atlantic coast of North America from Labrador to Delaware.

Key Identification Features:

Fan-shaped blade, long stipe. Blade expanding more abruptly from the stipe than the other species of Phyllophora and most other foliose red algae.

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Distribution Map from NBN: Phyllophora pseudoceranoides at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Phyllophora pseudoceranoides at iNaturalist World Species Observations database.

WoRMS: Phyllophora pseudoceranoides at World Register of Marine Species.

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Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Phyllophora pseudoceranoides. (S.G.Gmelin) Newroth & A.R.A.Taylor ex P.S.Dixon & L.M.Irvine, 1977. [In] Encyclopedia of Marine Life of Britain and Ireland.
https://habitas.org/mbdp/species.php?item=ZM5860. Accessed on 2026-11-01