Description: Frond grows from a discoid holdfast to 8 cms long and 5 cms wide with a small stipe. The broad cartilaginous blades are concave and may become lobed.

Habitat: Epilithic in the sublittoral to 15 m deep.

Distribution: Western distribution in the British Isles on the coasts of south-west England, Wales, Ireland and Scotland . Europe: the Mediterranean, Azores, Portugal, Spain and France. Further afield: Canary Islands.

Key Identification Features:

• Frond strongly concave.

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

iNaturalist: Meredithia microphylla at iNaturalist World Species Observations database.