Two shots of a husk from the fruit of an American beech (<i>Fagus grandifolia</i>, syn. <i>F. americana</i>), Rutgers Ecological Preserve, New Jersey, USA – This was rooted in a piece of moss covered deadfall.  Its about 3/4 inch across.  I've never seen anything like it.  It was fairly tough and a little pliable.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/26426438@N00">Vik Nanda</a>
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<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/26426438@N00/1536381240">What is this? (ID - American Beech Husk)</a>