About Phaeocollybia fallax A.H.Sm.
The cap of Phaeocollybia fallax is green, and sometimes turns brown as the fungus ages. It is slimy when wet, measures 1.5 to 6 centimeters in diameter, and starts out conical before maturing into a convex, flat, or umbonate shape. The gills of Phaeocollybia fallax are purple when young, becoming brown with age. The stipe can reach up to 25 centimeters in total length, but most of this length is hidden underground. Only 4 to 8 centimeters of the stipe are visible above the ground. The stipe is between 3 millimeters and 1 centimeter wide. This species produces a brownish spore print. Phaeocollybia fallax is most often found in old growth coastal forests. It is a mycorrhizal fungus that forms symbiotic relationships with conifer trees, and may also grow in association with tanoak. It usually produces fruiting bodies in the fall, and occasionally fruits in the spring.