In reply to Toerag:
Yes, done that many years ago as a teenager, using dry bits of a felled tree, and it works (after a fashion...).
Better to use as tinder, Ötzi style (even though he, like Siberian or Sami nomads in more recent times, more likely used it as diarrhea medicine).
The best use is I have seen is to make fire starters by soaking the fungi with molten wax from candle stubs. Works an absolute treat!
CB