Apical parts of a thalli of the red seaweed Plocamium cartilagineum, with female reproductive structures (cystocarps) visible. This specimen was observed in Llanes (Asturias, Spain).
<a href="//commons.wikimedia.org/w/index.php?title=User:Koruko&amp;action=edit&amp;redlink=1" class="new" title="User:Koruko (page does not exist)">Raquel Sánchez de Pedro</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>