The following was written by Mike Wood, the maintainer of MykoWeb:
Ah…the long and tortured history of the name Boletus eastwoodiae…
Follow closely now for the inattentive can easily get lost….
Suillellus eastwoodiae (named for the botanist Alice Eastwood) is a Murrill name from 1910. It was transferred to Boletus in 1912 by Saccardo and Trotter. The name Boletus eastwoodiae is the name we used for years for what we now call Boletus pulcherrimus. When the type specimen of Boletus eastwoodiae was studied, it was found to be the same as what we have been calling Boletus satanas. To correct this, Thiers and Halling erected the name Boletus pulcherrimus in 1976.
Recently it’s been discovered (well maybe not that recently, if you are familiar with both the European and California material) that what we call Boletus satanas is different from the “real” Boletus satanas of Europe. Do a Google search for satanas and compare European photos with ours…the European material has different coloration of the cap and lacks the Abruptly bulbous base. Molecular studies apparently confirm the difference (but I have not seen this published). This means that we need another name for “our” Boletus satanas…and leaves us with Boletus eastwoodiae (remember the type is actually “our” B. satanas).
So yes, we should probably use the name Boletus eastwoodiae for “our” Boletus satanas.