Description: Small tufts of erect shoots to 3.5 (-7) cms long, filiform and terete. Filaments solid with an outer cortex of small cells enclosing a central larger cells.

Habitat: Common. Epiphytic especially on Chorda and Alaria in the low littoral and upper sublittoral.

Distribution: Widespread around the British Isles. Europe: Spain, France, Netherlands, Norway, Faroes and Iceland. Further afield: Arctic Seas: Murman Sea and Novaya Zemlya.

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

iNaturalist: Litosiphon laminariae at iNaturalist World Species Observations database.

WoRMS: Litosiphon laminariae at World Register of Marine Species. Accepted name: Litosiphon laminariae (Lyngbye) Harvey, 1849. AphiaID: 145327.

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