That is very useful to have around! Fomes fomentarius or the Ice Man Polypore is one that has been used to make clothing for centuries. I would love to find a resource that explains in more detail about how to utilize that one.
I have TONS of F. fomentarius growing around here in Minnesota and they would be a great candidate for paper-making.
Growing the Way to Life and Love
They weren't very bright, but they were very, very big. Ad contrast:
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