P. scheuchzeri has straight corona tubes (these purple "spikes" that are typical for Phyteuma), but here they are very curved. Probably it is Phyteuma orbiculare or maybe P. hemisphaericum (sorry, my italian is not good enough for such descriptions!)

Va benissimo anche l'inglese .... purchè me lo tieni ad un livello .... basso come la mia conoscenza della lingua :)
Grazie infinite delle preziosissime dritte botaniche!!!
S.