| RHODOPHYTA : Ceramiales : Rhodomelaceae | RED ALGAE |
Description: Thallus in tufts to 8 cms long. Erect polysiphonous axes terete with 9 - 11 pericentral cells, ecorticate. Branches alternate and complanate.
Habitat: Rare. Epilithic and epiphytic at extreme low littoral to 10 m in moderately sheltered shores.
Distribution: Recorded only from scattered sites in the south-west of Britain: Cornwall, Devon and Dorset in England; South Wales and in Ireland from Cos Cork, Clare and Galway. Europe: Mediterranean and France. Further afield: the Canary Islands.
Distribution Map from NBN: Pterosiphonia pennata at National Biodiversity Network mapping facility, data for UK.
iNaturalist: Pterosiphonia pennata at iNaturalist World Species Observations database.
WoRMS: Pterosiphonia pennata at World Register of Marine Species.
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| Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Pterosiphonia pennata. (C Agardh) Sauvageau. [In] Encyclopedia of Marine Life of Britain and Ireland. https://habitas.org/mbdp/species.php?item=ZM11380. Accessed on 2026-11-01 |