Description: Fronds growing to 70 cms as tufts, branching irregularly with an axis of elongated cells, and clothed with short assimilatory filaments 2 - 6 cells long, each ending in a large globular cell. Gelatinous.

Habitat: Rare. Lower littoral rock pools.

Distribution: Widely distributed but with few scattered records around the British Isles. Europe: Baltic Sea and Norway. Atlantric coast of North America: Newfoundland. Further afield: Japan.

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

iNaturalist: Sphaerotrichia divaricata at iNaturalist World Species Observations database.

WoRMS: Sphaerotrichia divaricata at World Register of Marine Species. Accepted name: Sphaerotrichia divaricata (C.Agardh) Kylin, 1940. AphiaID: 144931.

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