Tubaria confragosa

Pileus
Cap 2-7 cm broad, convex, becoming broadly convex, expanding to nearly plane, margin striate when moist, sometimes uplifted in age; surface dry, smooth, hygrophanous, dull orange-brown fading to pale buff-brown; flesh thin, colored like the cap, unchanging; odor and taste mild.

Lamellae
Gills adnexed to notched, broad, close, buff-brown at first, dingy orange-brown in age, lighter than the cap.

Stipe
Stipe 3-5 cm tall, 2-7 mm thick, fragile, hollow, cartilaginous, sometimes flattened; equal to tapering to a slightly narrowed base, the latter with pallid, cottony mycelium; surface moist, appressed silky-fibrillose over a buff-brown background; flesh colored like the cap, unchanging; veil thin, membranous forming an evanescent superior veil.

Spores
Spores 6-7.5 x 3.5-4.5 µm, elliptical, smooth; spore print dull orange-brown.

Habitat
Gregarious, clustered, or in troops on wood chips or other lignicolous debris; fruiting throughout the mushroom season.

Edibility
Unknown.

Comments
Like its close cousin Tubaria furfuracea, T. confragosa often fruits in large numbers on wood chips. It differs in being larger and lacking an appendiculate cap margin, the veil instead forming an evanescent ring. Otherwise, these two species intergrade in spore size and in spore print color. T. confragosa is not as common as T. furfuracea.