Description: Polysiphonous filamentous, finely tufted to 10 cms long with widely spreading branches, opposite or whorled.

Habitat: Usually epiphytic on Palmaria palmata.

Distribution: Widespread around the British Isles. Europe: France, Norway, Faroes, Iceland. Atlantic coast of North America: Canada, Maine, New Hampshire and Massachusetts.

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

iNaturalist: Stictyosiphon griffithsianus at iNaturalist World Species Observations database.

GBIF data for Fosliea griffithsiana

WoRMS: Stictyosiphon griffithsianus at World Register of Marine Species. Accepted name: Fosliea griffithsiana (Le Jolis) Hagen ex Athanasiadis, 2021. AphiaID: 1871318.

Classification: Biota; Chromista; Harosa; Heterokonta; Ochrophyta; Phaeophyceae; Fucophycidae; Ectocarpales; Chordariaceae; Stictyosiphon