There isn't any Sphagnum moss in the photo above but that's OK because we're amateur mycologists so we can be excused for not knowing our mosses.
Boletes are ectomycorrhizal so they grow in association with trees. I'm not aware that the moss would be a significant association for boletes but it isn't a factor for
Boletus chrysenteron.
Xerocomus is a genus that was defined to include the smaller species of bolete with a dry often felty cap. It is now not thought to be a natural grouping as some of the members are not closely related by DNA. The latest book in the British Fungus Flora series puts them all back into
Boletus, although some books have kept the genus for the time being for convenience.
Boletus chrysenteron is a species that does not blue particularly strongly on cutting, although it does blue weakly and some blueing is apparent, particularly in the flesh in the cap, in the small inset photo.
If you find a
Red Cracking Bolete that does blue strongly, and blues also in the base of the stem then it is not going to be
Boletus chrysenteron. There are several other options but one strongly blueing species with a lot of red showing through the cap cuticle is
Boletus cisalpinus, so this is something to watch out for.
Ken
Many thanx Nick your a star once again ...
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