I'm at work now, waiting for some files to finish cooking, and dreading what I'm going to find when I get home. Chris is there now, managing the arborists as they euthanize our tree.
This is the mushroom that let us know the tree was rotting at the roots. Perhaps a mycologist could identify it, but I can't.
I seem to have forgotten to upload a few photos; grumf! I had a good one of a stack of these dusting the poison ivy with white spores.
This is the underside of the mushroom. These photos were taken in July, if I remember correctly, and they were taken when the mushroom had finished growing and was busily dusting the area with spores.
More views of the underside of the mushroom.
I'm going to miss our tree.