Catenella casepitosa (Withering) L.M. Irvine
Aslo known as Catenella repens (Lightfoot) Batters; and Catenella opuntia
Description: Mat of interlaced blackish purple fronds, 20 mm high, irregularly branched, constricted into flattened segments like tiny Prickly Pear cacti, from creeping stolons with discoid attachments.
Habitat: On sheltered shady rocks or soil near high tide level, often beneath Fucus spiralis, generally distributed, abundant.
Similar species: Gelidium pusillum.
Link: AlgaeBase
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Books
An Irish Seaweed Kitchen - Prannie Rhatigan.
New Seaweed Recipies - with an Irish twist.
€35
Meeresalgen - Wolfram Braun.
Colour identification guide to seaweeds of the World.
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