Russula dissimulans Shaffer
is similar to Russula densifolia in that both are initially white, bruise red, then gray and finally black. However, Russula dissimulans is a much larger mushroom with somewhat distant, broader, thick gills and a thinner cuticle, which is difficult to peel. It is mycorrhizal with hardwoods and conifers and can be found growing alone, in groups or scattered in summer and autumn. Sometimes called R. nigricans a European species. It is in the Russulaceae family of the Russulales.
Russula dissimulans

Russula dissimulans

Russula dissimulans
