Agrocybe pediades spores, from a gill edge.  1000x magnification  Collected on 08/16/07 on a lawn in the Bay Area, California.
<a href="//commons.wikimedia.org/wiki/User:Alan_Rockefeller" title="User:Alan Rockefeller">Alan Rockefeller</a>
2007-08-16
<span class="int-own-work" lang="en">Own work</span>