Description: Small, erect frond rising from a discoid base, with a short stipe, broadining and deviding dichotomously once or twice to form branched flattened blades. Up to 5 cms long.

Habitat: On the steep walls of deep rock pools frm the upper sublittoral to about 10 m.

Distribution: British Isles: only on southwestern shores of England and Wales also the Channel Islands. Europe: the Mediterranean and the Black Sea. Further afield: the Canary Isles, Jamaica, Caribbean, Ceylon, Samoa and Japan.

Similar Species: Chondrus crispus Stackhouse.

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

iNaturalist: Grateloupia dichotoma at iNaturalist World Species Observations database.

WoRMS: Grateloupia dichotoma at World Register of Marine Species. Accepted name: Dermocorynus dichotomus (J.Agardh) Gargiulo, M.Morabito & Manghisi, 2013. AphiaID: 839257.

Classification: Biota; Plantae; Biliphyta; Rhodophyta; Eurhodophytina; Florideophyceae; Rhodymeniophycidae; Halymeniales; Grateloupiaceae; Grateloupia