Macrolepiota "DB10556"                                                     *Sierran Collection


Collection: 2008/11/26 Sierra Nevada, Elev. 3600 -- Pinus spp. Pseudotsuga menziesii, Quercus kelloggii, etc.

This is Sierran Macrolepiota doesn't match anything on the books in California.
Micro Characters

Pp. towards center, a trichodermium with some thick walled hyphal ends.
Spores: 12.3-16x8.8-11µ

Cheilocystidia