Description: Small uniseriate filaments with prostrate and erect axes growing to 9mm long. Branching variable.

Habitat: Epiphytic on Saccorhiza polyschides sublittoral.

Distribution: Recorded only from the British Isles: Devon and the Channel Islands.

Similar Species: All species of Acrochaetium are very similar, microcopic examination is usually required for identification.

Distribution Map from NBN: Acrochaetium lorrain-smithiae at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Acrochaetium lorrain-smithiae at iNaturalist World Species Observations database.

WoRMS: Acrochaetium lorrain-smithiae at World Register of Marine Species. Accepted name: Acrochaetium lorrain-smithiae (Lyle) L.Newton, 1931. AphiaID: 144364.

Classification: Biota; Plantae; Biliphyta; Rhodophyta; Eurhodophytina; Florideophyceae; Nemaliophycidae; Acrochaetiales; Acrochaetiaceae; Acrochaetium