Psathyrella cernua (Vahl) G. Hirsch (illustrated 45% life size) Cap 2–4cm across, broadly convex; dark, watery brown, margin finely striate, almost white when dry. Stem 30–50×2–4mm; white. Flesh pallid; taste and smell not distinctive. Gills close, adnexed; pallid then dull purple-brown. Spores 7–8×4–5¼, elliptical. Spore print purple-brown. Cystidia thick-walled. Habitat on fallen trees, especially poplars; summer to autumn. Very rare, distribution uncertain. Unknown edibility, avoid.