C. unitinct´us Pk.—one-colored. Pileus thin, submembranaceous, flexible, convex or nearly plane, centrally depressed or umbilicate, glabrous, subshining, often concentrically rivulose, grayish or grayish-brown. Flesh whitish or grayish-white, odor obsolete, taste mild. Gills narrow, moderately close, adnate or slightly decurrent, colored like the pileus. Stem slender, straight or flexuous, subtenacious, equal, slightly pruinose, grayish-brown, with a close white myceloid tomentum at the base and white root-like fibers of mycelium permeating the soil. Spores elliptical, 7.5×5µ.
Var. al´bidus. Whitish or grayish-white, not rivulose. Gills broader. Spores brownish flesh-color.
Pileus 6–16 lines broad. Stem about 1 in. long, 1 line thick.
Woods of pine or balsam. Albany and Essex counties. Autumn.
The variety is a little paler than the typical form, with gills a little broader, but is probably not specifically distinct. Peck, 42d Rep. N.Y. State Bot.
I have not seen this species. Edibility not reported.
B. Spores Angular or Irregular.
1. Pileus not hygrophanous.
C. aborti´vus B. and C.—abortive. (Plate [LXIII], fig. 1, 2, 3, p. 254.) Pileus fleshy, firm, convex or nearly plane, regular or irregular, dry, clothed with a minute silky tomentum, becoming smooth with age, gray or grayish-brown. Flesh white, taste and odor subfarinaceous. Gills thin, close, slightly or deeply decurrent, at first whitish or pale gray, then flesh-colored. Stem nearly equal, solid, minutely flocculose, sometimes fibrous-striated, colored like or paler than the pileus. Spores irregular, 7.5–10×6.5µ.
Pileus 2–4 in. broad. Stem 1.5–3 in. long, 3–6 lines thick.