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Phylum: Rhodophyta   Family: Hapalidiaceae

Choreonema thuretii  (Bornet) F. Schmitz, 1889

"Thallus consisting of simple or branched articulated filaments, penetrating the tissues, and bearing fructifications on the surface of the host" - Newton.
A warm water parasitic alga, not uncommon on the south coast. This would appear to be the second Scottish record (2016)

Determiner: 
Chris Johnson

References: 
Newton (1931) - A Handbook of the British Seaweeds;
Irvine & Chamberlain (2011) - Seaweeds of the British Isles, Volume 1 Rhodophyta, Part 2B Corallinales, Hildenbrandiales

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