Phylum: Cyanobacteria Family: Oscillatoriaceae
Oscillatoria corallinae Gomont ex Gomont
These microscopic algae are rarely looked at and hence under-recorded. Trichomes can be green, blue or pale brown and densely intertwined. Thought to be mainly epiphytic on seaweeds
References:
Newton (1931) - A Handbook of the British Seaweeds
John, Whitton & Brook (2011) - The Freshwater Algal Flora of the British Isles