Description: Thallus fan shaped to 15 cms long and 20 cms broad. Frond devides dichotmously into rounded lobes, attached by a short cylindrical stipe. Blade without veins, monostromatic when young, increasing with age to 4 cells thick.

Habitat: Common. Epilithic and epiphytic on Laminaria from very low littoral to 21 m sublittoral.

Distribution: Widely distributed around the British Isles including Shetlands. Europe: Spain and France. Further afield: South Africa.

Similar Species: Drachiella heterocarpa.

Key Identification Features:

• Broad and fan-like without veins.

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

iNaturalist: Haraldiophyllum bonnemaisonii at iNaturalist World Species Observations database.

WoRMS: Haraldiophyllum bonnemaisonii at World Register of Marine Species. Accepted name: Haraldiophyllum bonnemaisonii (Kylin) A.D.Zinova, 1981. AphiaID: 144755.

Classification: Biota; Plantae; Biliphyta; Rhodophyta; Eurhodophytina; Florideophyceae; Rhodymeniophycidae; Ceramiales; Delesseriaceae; Phycodryoideae; Myriogrammeae; Haraldiophyllum