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. 2015 Oct 30;5:15839. doi: 10.1038/srep15839

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(A) Lichina pygmaea (black fruticose gelatinous cyanolichen on rocky shores), (B) Lichina confinis (black fruticose gelatinous cyanolichen on rocky shores, white arrows) and (C) Roccella fuciformis (grey fruticose lichen on sheltered vertical rockfaces).