<p>fructification of sea-weeds: <br>
A, B: <i>Polysiphonia urceolata = Polysiphonia stricta</i><br>
C: <i>Ptilosa plumosa = Ptilota gunneri</i><br></p>
D: <i>Plocamium coccineum = Plocamium cartilagineum</i>
Landsborough, D.
1851
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