Slender Psathyrella

Appearance

Pileus
Cap 1.0-4.0 cm broad, obtuse-conic, campanulate to convex-umbonate at maturity, margin striate at first, obscurely so in age; surface moist, hygrophanous, medium-brown fading to pale buff-brown, the disc usually dingy yellowish-brown; flesh very thin, colored like the cap, unchanging; odor indistinct, taste, mild.

Lamellae
Gills adnexed, moderately broad, close to crowded, pale dingy-buff, becoming brownish-grey in age.

Stipe
Stipe 4-8 cm tall, 1.5-3.0 mm thick, slender, thin, fragile, stuffed at maturity; more or less equal, sometimes twisted, occasionally continuing as a pseudorhiza with sparse white mycelium and adhering substrate; surface pruinose at the apex, often colored purple-brown from adhering spores, smooth elsewhere and concolorous with the cap; veil absent.

Naming

Psathyrella corrugis

Habitat

Gregarious or in large troops in disturbed habitats, e.g. wood chips, leaves, open grassy areas; fruiting year-round when moisture is available but especially abundant from late fall to mid-winter.