Pocket Plum gall on Sloe or Blackthorn (<i>Prunus spinosa</i>). <i>Taphrina pruni</i> is the fungal gall inducer.
<a href="//commons.wikimedia.org/wiki/User:Rosser1954" title="User:Rosser1954">Rosser1954</a> Roger Griffith
2010-02-16
<span class="int-own-work" lang="en">Own work</span>