Smaller and more slender than Coprinus atramentarius. Pileus brownish-gray, disk becoming reddish, not sprinkled with micaceous particles, but at first covered with a mealy bloom. Gills adnexed, attenuated from the stem to the margin, deliquescent. Fries.
Spores elliptical, pointed at the ends, 10x6µ Massee; 10x5µ W.G.S.
Solitary and in tufts. On stumps, trunks, etc. May to October.
West Philadelphia, Pa., McIlvaine.
C. fuscescens is tender, delicate and of excellent flavor. In this it ranks with C. atramentarius.
Coprinus macrosporus.
Enlarged one-third.
C. macro´sporus Pk. Pileus ovate, then expanded, rimose-striate (cracked in lines), obscurely floccose-squamulose, white, the small even brownish disk scaly. Lamellæ crowded, free, white then black. Stem glabrous, white, with traces of an annulus (ring) near the thickened or subbulbous base.
Spores very large, elliptical, 20–20.5 long, 12–16µ broad.