On the type of Coprinus jonesii
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Original description
Coprinus jonesii Peck in Bull. Torrey bot. Club 22, 1: 206. 1895 (New species of Fungi). Holotype: USA. Burlington, Vermiont, April 1891, Prof. L. R. Jones (N.Y. State Museum).

Plant fragile; pileus 1-2 in. broad, submembranous, campanulate becoming broad1y convex or expanded and split or revolute on the margin, very blunt or truncate at the apex when young, everywhere covered with tawny-gray or pale-cervine floccose scales wich wholly and partly disappear with age revealing the striate surface beneath; lamellae crowded, linear, free, at first white or whitish, becoming black; stem equal or slightly tapering upward, minutely floccose, hollow, white; stem 2-3 in. long, 2-3 lines thick.
Spores black, broadly elliptical, .0003 to .00035 in. long, .00025 in. broad, with an apiculus at one end.
Habitat. In a cellar.

Observations
Spores [40/2/1] 6.6-8.3 x 5.8-7.1 µm; Q = 1.12-1.23, av. Q = 1.18; av. L = 7.6, av. B. 6.4 µm, medium red-brown with central, c. 1.3 µm wide germ pore. Basidia 16-30 x 6.5-8 µm, 4-spored, surrounded by 3-5 pseudoparaphyses. Pleurocystidia 75-135 x 35-50 µm, utriform or subcylindric. Cheilocystidia 40-100 x 17-40 µm, subglobose, ellipsoid, ovoid, oblong, utriform or subcylindric. Veil 15-45 µm wide, hyphoid, elements constricted at septa, and with clavate to fusoid, sometimes ellipsoid terminal elements. Clamp-connections present, small.

Notes: The material is in good condition and exsists of a sufficient number of basidiocarps. Up
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