Description: Thallus flattened and devided into blades to 8 cms long and 6 cms wide with flattened branches growing from the margins as pinnate parallel-sided proliferations. Mucilaginous.

Habitat: Rare, only sublittoral to 18 m on mobile substrates such as gravel.

Distribution: Generally western in the British Isles. from Ireland, Wales western Scotland and south-western England. Europe: Sweden.

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

iNaturalist: Schmitzia hiscockiana at iNaturalist World Species Observations database.