Panaeolus semiovatus (Sow. ex Fr.) Lund. syn. Anellaria separata (L. ex Fr.) Karst. syn. P. separatus (L. ex Fr.) Gillet Ring-Düngerling Egghead Mottlegill. Cap 2–6cm across, ovate-bell-shaped, never expanding, clay white tinged yellowish towards centre, viscid, drying shiny, velar remnants often adhering to margin. Stem 50–100 x 4–8mm, slightly thickened at base, whitish; ring white and membranaceous, persistent. Flesh whitish, yellowish in stem. Gills broad, whitish, soon brown-black, often with a white edge. Pleurocystidia in form of broad lanceolate chrysocystidia with pointed apices. Spore print black. Spores pip-shaped, 16–20 x 10–12um. Habitat on dung. Season spring to early winter. Occasional. Not edible. Distribution, America and Europe.