Metal decay fungi

Are these growing from an old stump under the tarmac or could they possibly be growing from the roots of a sycamore about 4mtrs away?

Are these growing from an old stump under the tarmac or could they possibly be growing from the roots of a sycamore about 4mtrs away?

Sean,

Is it Scleroderma citrinum ? If it is, it can be saprotrophically decomposing dead wood or be associated with some tree species other than Acer as an ectomycorrhizal symbiont.

Lycoperdons perhaps ?

.

Lycoperdons perhaps ?

David,

What species do you suggest ?

David,

What species do you suggest ?

I don't

The (what looks like) inverted spines have got me stumped

.

Lycoperdon

Might be Pisolithus arrhizus (= P. tinctorius), which also is an ectomycorrhizal species.

So Sean,

Could you cut a specimen in half to see what the inside looks like ?