Xerocomus truncatus Singer, Snell & Dick
Syn. Xerocomus porosporus (according to some sources)

This is the most common Xerocomus species in Northern California. It is very similar to X. chrysenteron, but tends to be slightly larger. The truncated spores are its most distinct characteristic. Some sources attempt to segregate X. truncatus and X. chrysenteron on the basis of the degree of pink coloration under the cuticle, but I find this technique not particularly convincing, as both species have that feature.

Many spores are a distinctly truncated on one end.