Bay Boletus (Boletus badius)
This is a widespread and very common fungus usually associated with conifers but not exclusively. Appearing from late summer to early winter it is classic boletes in appearance, largish domed cap, brown in colour with a stout stem and yellowish and fleshy underside to the cap.
It is edible, it has a mild, pleasant taste; nice if you like that sort of thing.
Find out more about the Bay Boletes in Dorset here: