About Entoloma ferruginans Peck
Entoloma ferruginans is a species of mushroom. It was first described by Charles Horton Peck in 1895, from a type specimen collected under oak trees in Pasadena, California. This species has a grayish cap that grows up to 12 centimetres, or 4 and 3/4 inches, wide. Its stem reaches 15 cm in length and grows up to 4 cm, or 1 and 1/2 inches, thick. The spore print of Entoloma ferruginans is pinkish. Its scent is similar to that of a chlorinated swimming pool, which gives the species its common name bleachy entoloma. It looks similar to some other species within the Entoloma genus, and DNA testing is required to tell it apart from Entoloma cinereolamellatum. Entoloma ferruginans forms a mycorrhizal association with live oaks, and can be found in regions south of the San Francisco Bay between December and February.