CHROMOPHYTA : Ectocarpales : ChordariaceaeBROWN ALGAE

Myriactula areschougii (P Crouan et H Crouan) G Hamel


Description: Thallus epiphytic as very small gelatinous pustules up to 2 mm in diameter embedded in Himanthalia. Tuft-like consisting of erect closely packed branches.

Habitat: Epiphytic on Himanthalia elongata in the low littoral.

Distribution: Generally westerly in the British Isles. Europe: France.

Similar Species: There are a many similar small algae - all require microscopic examination to identify.

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

iNaturalist: Myriactula areschougii at iNaturalist World Species Observations database.

WoRMS: Myriactula areschougii at World Register of Marine Species.

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 Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Myriactula areschougii. (P Crouan et H Crouan) G Hamel. [In] Encyclopedia of Marine Life of Britain and Ireland.
https://habitas.org/mbdp/species.php?item=ZR2920. Accessed on 2026-11-01