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s A Field Guide to the British Seaweeds - NMBAQC

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Fucus sp.<br />

Plants <strong>to</strong>ugh, cartilaginous and not<br />

easily <strong>to</strong>rn, with midrib and greeny/<br />

brown in colour with three more<br />

common species<br />

Fucus serratus – characterised<br />

by its serrated edge and long flat<br />

reproductive tips, found on <strong>the</strong><br />

lower lit<strong>to</strong>ral area of <strong>the</strong> shore.<br />

Fucus vesiculosus –<br />

characterised by <strong>the</strong> presence of<br />

pairs of air bladders or vesicles<br />

(bladders are occasionally known<br />

<strong>to</strong> be absent), reproductive tips<br />

tend <strong>to</strong> be large and swollen,<br />

found in <strong>the</strong> mid lit<strong>to</strong>ral.<br />

Fucus spiralis –<br />

characterised by its<br />

spiralled frond,<br />

swollen reproductive<br />

tips with distinct<br />

sterile rim of cells,<br />

found in <strong>the</strong> upper<br />

zone of <strong>the</strong> shore

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