Two days later, 7/20/06, it is about 2.5"
in the longest dimension and has the original coloration and some droplets of liquid.

At this point it reminds me of the "bun" stage of the Berkeley Polypore as shown
on this page:
http://www.mushroomhunter.net/goodday.htm
It has grown a bit off the ground and here
is a side view:
