Which bolete?

Which bolete?

Observation - Which bolete?. Description: Brown cap with sheen, about 80 mm across, pores small rounded, yellow/brown, readily stained blue when bruised, stipe white at top then red with fine lines running down it, appears to have roots. Growing under a deciduous tree in grassy area.

Brown cap with sheen, about 80 mm across, pores small rounded, yellow/brown, readily stained blue when bruised, stipe white at top then red with fine lines running down it, appears to have roots. Growing under a deciduous tree in grassy area.