Coprinus domesticus (Bolt. ex Fr.) S. F. Gray Haus-Tintling Firerug Inkcap. Cap 1–3cm high, ovoid at first expanding convex or bell-shaped, splitting at margin, pale buff with darker tawny centre powdered at first with whitish or buff remains of veil, later smooth and becoming grooved from the margin inwards. Stem 40–155 x 2–10mm, swollen at base, white tinged buff towards the ridged base, often arising from a rust-coloured mat of mycelium. Smell none. Gills white at first rapidly purplish date then black. Spore print dark brown. Spores cylindric ellipsoid, 7.5–10 x 4–5um. Remnants of veil on cap formed of chains of globose or ellipsoid cells which are hyaline or golden brown, thin- to thick-walled and often verrucose. Habitat on dead wood of broad-leaved trees. Season late spring to summer. Uncommon. Not edible. Found In Europe and in America. The picture showing the red mat was taken by Geoffrey Kibby.