I have found large white "plates" growing from a downed tree...It took quite a lot of strenght to pull loose one of these growths. They ranged in size from about 12" in diameter to smaller ones of about 4 inches in diameter...The back of these growths look a lot like coral... I would like to have help finding the scientific name of this type of growth.
is it possible to post a picture? I can only imagine so have some kind of Polypore, but that doesn't narrow down what you have by much. If you can't get us a picture, please browse pictures of polypores at this link, one of them is probably the one you have. http://images.google.com/images?sou...,GGLR:en&q=polypore&oe=UTF-8&um=1&sa=N&tab=wi