I fits the description I found on the book Mushrooms of Costa Rica with one exception, the size. That's why I placed my rubber boot next to the mushrooms. The size of the fruit part is larger than the one I found for Polyporus but of course, once more I could be wrong. There was a smell, kind of strong when I approached the log. In this forest many things could smell so it may have been some thing else I have never noticed before.