RHODOPHYTA : Ceramiales : RhodomelaceaeRED ALGAE

Osmundea truncata (Kützing) Nam et Maggs


Description: Thallus with compressed axes to 15 cms long.

Habitat: Very rare. Epilithic or epiphytic in shallow sublittoral.

Distribution: South-western in the British Isles. Recorded from west of Ireland, Cornwall and Wales. Further afield: the Canary Islands.

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

iNaturalist: Osmundea truncata at iNaturalist World Species Observations database.

WoRMS: Osmundea truncata at World Register of Marine Species.

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 Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Osmundea truncata. (Kützing) Nam et Maggs. [In] Encyclopedia of Marine Life of Britain and Ireland.
https://habitas.org/mbdp/species.php?item=ZM10810. Accessed on 2026-11-01