Phylum: Rhodophyta   Family: Ceramiaceae

Halurus flosculosus  (J. Ellis) Maggs & Hommersand, 1993

Mrs. Griffiths's Little Flower

A widespread species of the lower shore, growing in short tufts from rocky achorages

References: 
Maggs & Hommersand (1993) - Seaweeds of the British Isles, Volume 1 Rhodophyta, Part 3A Ceramiales;
Bunker, et al - Seaweeds of Britain and Ireland