|That's great! I love hunting for wild ones.|
Just a short story: There was a group who got together and bought 40some acres of woodland near the Thomas Jefferson homestead (Monticello) in Va. They cut loads of oak trees and cross stacked them, inoculated them with shiitake spore and grew them commercially. Sold loads of them in New York. After a while they were faced with logs that were spent and decided to sell. A school teacher bought the property and I found out about her. I was invited to come pick all the shiitake's I wanted and I had to give her half of what I picked. After awhile, her take became more like 20% as she liked me (there's no accounting for taste). I dried a lot of them and sold others to a produce supplier in the area.
I even brought some of the less worn out logs home and grew some in my backyard. To give a short story that turned out long an ending, she called me one day and said a forest fire burned her property and that was the end of the story.
Nearly all commercially grown shiitake mushrooms are grown in wood chips. The log grown ones have a better flavor, according to me, but there is so much more involved in growing them that way; more labor intensive and way more expensive.