Fungus for Free?

At this time of year fungi are appearing everywhere in the moist autumn woodlands and grass. These are just one type that have sprouted in a corner of our garden. Over the past year or so we have seeded various areas in both the allotment and garden with spores from mushrooms in the hope that some would decide the conditions were just right for them!
So do we eat them? Although I have consulted the excellent Food For Free by Richard Mabey I am just not confident enough to tuck in!!