Lurid early summer Boletus

The lurid boletus - which can grow quite large, the cap up to 20cm !

There are two forms of this mushroom - the Lurid - B. Luridus and, a similar mushroom the B. luridiformis previously called - B. erythropus.

The mushroom when cut has lemon flesh and yellow/greentubes which quickly discolour to blue when cut. B. Luridus has a red line between the flesh and the tubes.

It is edible when cooked...but I think it wouldn't add much to the dining experience.