Coprinus silvaticus Pk. Cap 1-3cm high, ovoid expanding to conical-convex, with a deeply striate margin grooved to the center and often split; cream-buff with darker sienna or cinnamon center; apparently smooth but actually minutely hairy. Gills free, crowded; white then gray-umber becoming black. Stem 40-85 x 3-6mm, rather fragile; white discoloring pale buff, especially in the lower section; silky-lined with top finely woolly and lower part becoming smooth. Odor none. Spores almond-shaped, ornamented with low warts and ridges, 11-15 x 8-10µ. Deposit black. Dermatocystidia 90-180 x 16-25µ. Habitat on soil attached to burned wood. Rare. Found in the Pacific Northwest. Season September-October. Edibility not known -avoid.