Description: Thallus cylindrical, erect to 18 cms long. Clearly corticate only at the nodes.

Habitat: Epiphytic in the lower littoral and sub-littoral to 12 m.

Distribution: Generally south-western in the British Isles. Europe: Spain and France.

Similar Species: All Ceramium species with spines and corticated.

Key Identification Features:

• Cortical bands clearly seen by the naked eye.

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

iNaturalist: Ceramium siliquosum at iNaturalist World Species Observations database.

GBIF data for Ceramium siliquosum

WoRMS: Ceramium siliquosum at World Register of Marine Species. Accepted name: Ceramium siliquosum (Kützing) Maggs & Hommersand, 1993. AphiaID: 144564.

Classification: Biota; Plantae; Biliphyta; Rhodophyta; Eurhodophytina; Florideophyceae; Rhodymeniophycidae; Ceramiales; Ceramiaceae; Ceramioideae; Ceramieae; Ceramium