"Antler" fungus???

[grunden]

Jeffrey C. May wrote:
> 
> I peered into a dark, long abandoned crawlspace under a home in
> Massachusetts and found a tan growth structure that looked like the
> antlers of an animal.  It was growing out of wood planks in contact
> with soil.  The "branches" were brown, to tan with lighter colored
> rounded ends.  The structure was quite complex, very branched, about
> 3/8 inch thick per branch.  The entire structure grew to about 6
> inches off the planks and over 12 inches out from a wall.  Any ideas??

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Are you certain it's a fungus? Perhaps it's a termite nest or excreta?