Coprinus congregatus (Bull.) Fr. (illustrated 50% life size) Cap 0.5–2cm high, cylindrical-elliptical, expanding broadly convex; ochraceous-buff with darker centre, becoming grey from margin inwards. Stem 20–80×1–4mm, sometimes rooting; white. Flesh smell slight, pleasant. Gills free; cream then brown-vinaceous, finally black, deliquescing. Spores 12–14×6–7¼, elliptical. Spore print black. Dermatocystidia 48–106×7.5–17¼, subcylindrical with swollen base to somewhat lageniform, thin-walled. Habitat caespitose, on dung, compost, or rotting straw; summer. Rare. Unknown edibility.