Entoloma ferruginans

Entoloma ferruginans is an endemic mushroom of California in North America. It smells distinctly like a chlorinated pool at the YMCA, thus the common name bleachy entoloma. E. ferruginans lives in mycorrhizal association with live oaks south of the San Francisco Bay. This mushroom was first described by Charles Horton Peck in 1895 from a type specimen collected under oak trees in Pasadena.