Description: Thallus very small, in part within the Cryptopleura ramosa. Blades, few to many, up to 10 cells thick and 4.6 mm in diameter from a cushion-like pad 1.7 mm in diameter.

Habitat: Hemiparasitic on Cryptopleura ramosa.

Distribution: British Isles: England, Ireland, Scotland and Wales. Europe: Spain and France.

Key Identification Features:

• On or in Cryptopleura ramosa.

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

iNaturalist: Gonimophyllum buffhamii at iNaturalist World Species Observations database.

WoRMS: Gonimophyllum buffhamii at World Register of Marine Species. Accepted name: Gonimophyllum buffhamii Batters, 1892. AphiaID: 144753.

Classification: Biota; Plantae; Biliphyta; Rhodophyta; Eurhodophytina; Florideophyceae; Rhodymeniophycidae; Ceramiales; Delesseriaceae; Phycodryoideae; Cryptopleureae; Gonimophyllum