i bet that mushroom is linked to the tube or somethin underground,

did you know the largest living organism known to man is a mushroom... you woulda thought it would be a tree, the mushrooms were thought to be growing seperately, until someone made the discovery and found one giant organism growing underground, which sent mushrooms up to the surface at night... dunno why lol

heres a link and a quote...

http://www.extremescience.com/biggestlivingthing.htm

In the state of Washington U.S.A. in the foothills of Mount Adams, a specimen of the fungus Armillaria ostoyae covers 1,500 acres and seems to be 400-1,000 years old. This is the largest living organism in the world.