Help Me ID this Mushroom!

I found these big brown mushrooms growing out of a log that had been inoculated with edible mushroom spores about 2 years ago...
only problem is, i wasn't the one who stuck the spores in there and I have no idea which types of mushrooms they might be.... or if they are from the spores at all. The logs were already here at the Luck Cabin when i moved in.

Can anyone help me figure out, if this is an edible mushroom?
here are some other viewpoints... side and underneath, showing the gills....
The brown color is very rich and healthy looking... these mushrooms are also really large and round - thick (but not as thick & heavy as a portabella).

XoXoxoOX

Help Me ID this Tree

(This post is for Bort - my favorite tree guy...)

I was walking in the woods here around the Luck Cabin when I happened upon this big barked tree. What I noticed first was the unusual tree knot in the bark, at the bottom of the trunk. It looked like a big button that you could press, and open up a portal to another world - the kind with unicorns, glitter falling from the sky and tiny people... tinier than me... (see pic below.)The bark of this tree goes upward in large vertical caverns, creating deep shadows in the crevices. I don't know what kind of tree this is- and was wondering if anyone can help me identify the type of tree by looking at the bark? Each kind of tree has it's own thumbprint of bark, just like their individual shaped leaves... :)
XoXo