<i><a href="https://de.wikipedia.org/wiki/Nostoc" class="extiw" title="de:Nostoc">Nostoc</a></i> in Hockenheim
<a href="//commons.wikimedia.org/wiki/User:AnRo0002" title="User:AnRo0002">AnRo0002</a>
<span class="int-own-work" lang="en">Own work</span>