d,
resupinate then reflexed, white or tinged reddish, usually with a very
short downy s.; g. broad, ventricose, grey then tinged rufescent; sp.
glob. rough, 5-6. (9-11 x 6-8 Sacc.)

Differs from _C. variabilis_ in globose, warted s.

[=inaequabilis=, Sacc. Entirely rusty, stipitate; p. oblique, almost
glabrous; g. sinuato-free, ventricose; s. very excentric, short, base
dilated, incurved; sp. 8 x 6.

[=macrosporus=, Pat. and Doas. P. exp. depressed at an excentric point
corresponding to insertion of stem, reddish brown, striate up to
depression; g. broad, distant, reddish; s. short, excentric, enlarged
into a flat plate at base; sp. 15-18 x 12.

=byssisedus=, Pers. P. 1-2 cm. resupinate then horizontal, reniform,
plane, downy, grey then pale; g. adnato-decur. greyish-white, reddish
with the spores; s. incurved, downy, base surrounded with white fibrils;
sp. glob. rough, 6-7.

Differs from _Pleurotus applicatus_ by presence of s. and pink sp.

[=Zahlbruckneri=, Beck. P. resupinate then reflexed, sessile, reniform,
shining white, downy; g. radiating, reddish, edge paler, denticulate;
sp. minutely warted, subg. 6-7.

Differs from _C. variabilis_ in denticulate edge of gills and sp.

[=Klukii=, Blonski. P. shell-shaped, reniform, downy, greyish-tan; g.
crowded, decur. whitish then bright rosy; s. slightly curved, base white
and downy; sp. 5-6 x 3.

Allied to _C. byssisedus_ but larger.

[=Peteauxi=, Q. P. cupulate then reniform, wavy, thin, fragile, minutely
tomentose, shining white; g. free, sinuate, radiating from a central
point which is continued into a very short, white tomentose stem; sp. 7
long.

OCHROSPORAE.

A. _Gills separating spontaneously, or very easily from flesh of
pileus._

=Paxillus=. Margin of pileus persistently involute; gills decurrent or
adnato-decurrent.

B. _Gills not separating spontaneously, nor easily from flesh of
pileus._

* _Stem furnished with a volva, or an interwoven ring, or with
both._

=Locellina=. Volva and ring both present.

=Pholiota=. Ring alone present.

** _Volva and ring both absent._

+ _Stem central._

=Pluteolus=. Gills free.

=Bolbitius=. Pileus membranaceous; gills deliquescent at maturity.

=Inocybe=. Stem fleshy, fibrous externally; pileus fibrillose or scaly;
gills sinuato-adnexed.

=Hebeloma=. Stem fleshy, fibrous externally; pileus glabrous, viscid;
gills sinuato-adnexed.

=Naucoria=. Ste