Rubroboletus legaliae

[1] It's uncommon in Southern England, and Europe, and grows with oak (Quercus) and beech (Fagus) often on neutral to acid soils.

The stipe is stocky, with a narrow red reticulation (net pattern) on an orange ground at the apex.

Boletus legaliae was transferred to the genus Rubroboletus in 2015 by Marco Della Maggiora and Renzo Trassinelli.

[5] R. legaliae is an uncommon to rare species in the UK, commonly occurring in open woodland or parkland with plenty of sun on neutral-to-acidic soil.

An unusual morph with bright yellow pores has been recorded from Windsor Great Park, Berkshire, sometimes growing alongside normal-pored variants.

[6] Rubroboletus satanas, found in broad-leaved woodland on calcareous soil, has a whiter cap that turns brownish-ochre, lacking the overall reddish tones in maturity.

R. legaliae bruising: Typically, the pale yellow flesh slowly turns light blue
Rubroboletus legaliae with unusual yellow pores. Windsor
Collection on the edge of a road. Windsor
This collection was found growing near oaks on the edge of arable land in Suffolk. Caps entirely flushed red when mature