
Bracket fungus growing out of a sawn branch along the Trillium Trail in Fox Chapel.
An entire ecosystem depends on the bark of this one tree in Mount Lebanon: moss, lichens, a bug, and tiny mushrooms. How tiny are they? Below is a left index finger for scale.
A lichen expert would probably know right away what kind of lichen these are, but Father Pitt does not. He always appreciates help in the comments. The color is one of old Pa Pitt’s favorites in all of nature.