Photo taken with Nikon 995, June 2002
Shows typical features of the genus Agaricus.
1. Large persistent ring.
2. Gills closely-packed and free (= you can see a space between the gills and the stalk).
3. Young gills are pink turning to dark brown in age.
Species? This species had a roughened to bumpy cap, thick persistent ring, and a fuzzy stalk. I'm working on it!