This patch on the trunk covers about 10" by 6". At first I thought it is sh?t from an owl. Closer look reveals pores on the surface. Could it be lichen, fungi or molds ? Kindly ID please.
Thank you for the close up shot on this one: There are a number of resupinate poroid fungi, I'm not sure what this is, but I suspect it would not be possible to ID from photos only.