covered with glistening particles
when young._

=micaceus=, Fr. P. 3-6 cm. oval then campan. glistening then naked,
sulcate, tawny ochre; g. adnexed; s. 5-8 cm. white, silky, hollow.

[=marcescens=, Karst. P. campan. sulcate, whitish at first, soon dingy
ochre, then pale sooty grey, disc brownish yellow, micaceous; g.
adnexed; s. white, silky; sp. 6-9 x 4-6.

Differs from _C. micaceus_ in p. becoming sooty grey.

=aratus=, B. P. 5-8 cm. narrowly elliptical then campan.-umber, grooved
up to disc; g. slightly adnexed; s. 10-15 cm. snow-white, silky, hollow;
sp. 15 x 10-11.

=stercorarius=, Fr. P. 2.5-3 cm. ovate then campan. edge striate,
densely covered with white glistening meal; g. adnexed; s. 7-12 cm.
white, hollow, minutely mealy at first; sp. 14-15 x 8.

_C. niveus_ differs in tomentose p., and _C. albus_ in sulcate p.

=radians=, Fr. P. ovate then campan. 2.5-5 cm. edge striate, disc
granuloso-squamulose, tawny ochre then pale, glistening; g. slightly
adnexed; s. 3-5 cm. white, smooth, base with dense radiating strands of
mycelium; sp. 7 x 4.

=truncorum=, Fr. P. globose at first then campan. glistening then naked,
tawny ochre, striate, 2-4 cm.; g. free, rosy then black; s. 7-10 cm.
slender, white, glabrous, hollow; sp. 12-14 x 6.

Differs from _C. micaceus_ in p. being globose at first, and not
sulcate, and in free, rosy g.

[=inamoenus=, Karst. Foetid. P. subcylindrical then exp. blackish with
white micaceous scurf; g. fixed to a remote collar; s. hyaline, at first
downy, often rather wavy, several stems springing at intervals from a
prostrate mycelium; sp. 7-11 x 4-6.

[=intermedius=, Penzig. P. campan. pallid, even, with dense reddish
micaceous scurf near apex; g. free; s. glabrous, tinged pink; sp. 7.5-9
x 5.

[=frustulosum=, Sacc. P. campan. rather acute, even, covered with
reddish micaceous meal; g. free; s. conical then cylindrical, white; sp.
8 x 6.

VI. _Volva, ring, and veil absent; flesh very thin, pileus soon
splitting along the lines of the gills, scurfy or glabrous._

* _Pileus more or less scurfy._

+ _Gills attached to stem._

# _Pileus white._

[=conditus=, Godey. P. globose then ovoid, striate, sometimes tinged
yellow; g. adnate; s. 20-25 mm. shining, scurfy; sp. ----.

[=stellaris=, Q. P. ovoid then campan. 1-2 mm. striate, snow-white then
greyish, crowned with pellucid vesicles; g. adnate; s. 1-2 cm. long,
filiform, hyaline, velvety; sp. 8