mold

Hey, Anyone who what kind of mold this is? I want to make something with the wood and like the patterning the mold has created, but I don't know if it's a dangerous mold or not... The wood is beech, it was in the forest on a firewood pile (so reasonably dry) The mold is kind of droplet-shaped...

I bought some boards from a local guy that has a small sawmill, he said these were white oak. I know that there is a lot of color overlap between red and white oak, but these look pretty red to me. These were not stacked well at the property where I picked it up and were pretty much open to the...

I have a 3-4 year old oak tree with white mold on the bottom of the trunk. Also has scar on the trunk. What can I do to make it healthy?