Resin bead on <i><a href="//commons.wikimedia.org/wiki/Pinus_radiata" title="Pinus radiata">Pinus radiata</a></i> tree stump.  Beads of resin ooze from the stump in hot weather. Initially soft lumps of jelly like this one, they dry out and crystallise like the remnants in the foreground
<a href="//commons.wikimedia.org/wiki/User:Tony_Wills" title="User:Tony Wills">Tony Wills</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>