Mushrooms in a yard under oak.
Shrewsbury
8/14/08
Young with caps about 1.5". Growing
under oak.
Older with largest cap about 2.5".
Top
Section turned dark blue to almost black.
After about 5 minutes there was some brown.
Spore print was olive-brown. Spore
11.5 x 3.8 microns
Noah Siegel suggested that it might be "Boletus speciosus or
something close to it." Since there was no reds or pinks in the cap color
I would say it fits the description of Boletus speciosus var. brunneus.