Synonym: Collybia dryophila.
Name: Greek epithet dryophilus means lover of oak trees.
Region: Europe, North America.
Habitat: temperate woodlands; on oak, also other broad-leaved trees, conifers.
Ecology:
Gymnopus dryophilus can have pale growths from the parasite Syzygospora mycetophila.
Use: edible by some sources, though not worthwhile; stem is tough; taste is palatable.
Content anti-inflammatory beta-glucans.
MycologyType: saprophytic, occasionally also attacks living wood; fruiting from April to December
Cap: reddish brown to ochre, fading to tan with dryness; convex, more irregular with age; 2 to 6 cm in diameter.
Hymenium: gills whitish, crowded, thinly attached to the stem, detaching with age.
Stem: smooth, bald; 2 to 8 cm long, 3 to 6 mm in diameter, sometimes thicker at the base.
Spore print: white.
Spores: buff; do not react in Melzer's reagent; 6 by 3 µm; slightly tear-shaped; cystidia lobed, club-shaped, 15 to 50 µm by 2 to 6 µm; hyphae on the cap cuticle can also have lobes.
TaxonomySimilar species is
Rhodocollybia butyracea, which has a pinkish spore deposit, and some of the spores turn reddish-brown in Melzer's reagent.