Hampshire,
United Kingdom 
I have a woody area at the end of my garden, my little dog loves to dig and has dug up a few roundish brown thins , I thought might be truffles. However when I cut one in half it was full of a black dust. Do you know what they are please, my dog is very reluctant to give them up.
11 Nov, 2014
Answers
Thanks I did think that May be it perhaps I'll pop them back in the ground
11 Nov, 2014
Just sprinkle the spores around to do their work.
11 Nov, 2014
Were they with oak or hazel in soil with a hight pH?
11 Nov, 2014
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They could well be truffles, but ones that have gone over. The brown dust is the spores of the truffle just as in any other fungi in particular, puffballs.
11 Nov, 2014