RHODOPHYTA : Corallinales : CorallinaceaeRED ALGAE

Pneophyllum myriocarpum (P Crouan et H Crouan) Chamberlain


Description: Encrusting thallus flat and thin up to 5 cms in diameter, thin margin without orbital rings. Conceptacles clearly raised.

Habitat: Common. Epilithic on rocks, stones, glass, shells etc also epiphytic on algae especially Furcellaria, Gracilaria, Chondrus and Palmaria.

Distribution: Mainly recorded on the southern shores of the British Isles, including Jersey in the Channel Isles. Has been found in the north of Ireland. Europe: France and Italy.

Similar Species: Other species of Pneophyllum.

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

iNaturalist: Pneophyllum myriocarpum at iNaturalist World Species Observations database.

WoRMS: Pneophyllum myriocarpum at World Register of Marine Species.

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 Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Pneophyllum myriocarpum. (P Crouan et H Crouan) Chamberlain. [In] Encyclopedia of Marine Life of Britain and Ireland.
https://habitas.org/mbdp/species.php?item=ZM5060. Accessed on 2026-11-01