Lyophyllum decastes (Fr. ex Fr.) Sing. syn. Clitocybe decastes (Fr. ex Fr.) Kummer syn. Tricholoma aggregatum (Schaeff. ex Secr.) Gill. Chicken Mushroom, Brauner Rasling Tricolome agrégé, Lyophille en touffes, Clustered Domecap. Cap 4–10cm across, convex then expanded, becoming wavy, grey-brown to brown, with silky or silvery streaks. Stem 30–60 x 10–20mm, tough, fibrous, often excentric, white at apex becoming brownish towards the base. Flesh whitish. Taste and smell not distinctive. Gills white to greyish. Spore print white. Spores subglobose, 5–7 x 5–6um. Habitat in clusters on the ground in open woodland. Season summer to autumn. Occasional. Edible – good, This is a much sought after edible species in America but should be tried with caution as there have been some reports of gastric upset. Distribution, America and Europe.
Note some mycologists synonomise Lyophyllum decastes and Lyophyllum loricatum. There also seem to be differences in colour between European specimens and American specimens.