Fr. P. subumb. whitish, margin striate; g. nearly free,
crowded, narrow; s. purplish-brown, pruinose, base with white down.

=archyropus=, Fr. P. 1.5-2.5 cm. plane or depr. glabrous, pallid; g.
crowded, linear, pallid; s. 6-10 cm. rigid, straight, pale rufescent,
coated with white down, base similar; sp. subgl. 4-5.

Differs from _M. terginus_ in tufted habit, and from _M. prasiosmus_ in
absence of smell.

=torquescens=, Q. P. 1-1.5 cm. plane, rugosely striate, pallid; g. free;
s. 4-5 cm. brown, minutely velvety, apex pale and glabrous; sp. 5 x 4.

=impudicus=, Fr. Smell foetid. P. 1.5-2.5 cm. rugulosely striate,
reddish bay, then pale; g. tinged red then pale; s. 3-5 cm. equal,
purplish, covered with white down when dry, base naked, rooting; sp. 8 x
4-5.

Differs from _M. foetidus_ in free gills.

[=saxatilis=, Fr. P. depr. striate, reddish; g. adnate, white; s.
glabrous, apex pruinose, reddish.

III. CALOPODES. _Stem short, not rooting, entering matrix abruptly,
often with a small floccose tubercle at base. Gills adnate then
subdecur. when p. expands._

* _Stem very glabrous upwards, shining, base simple._

=scorodonius=, Fr. Smell of garlic. P. 1.5-2 cm. soon plane, dry, rufous
then pale, wrinkled; g. adnate, whitish; s. 2.5-4 cm. equal, everywhere
glabrous, shining, rufous; sp. 6 x 4.

=calopus=, Fr. P. 1-1.5 cm. exp. even then wrinkled, glabrous, whitish;
g. emarginately adnexed; s. 2-2.5 cm. even, glabrous, bay, shining, not
rooting; 7 x 4.

Habit of _M. scorodonius_, but no smell.

=Vaillantii=, Fr. P. 1.5-2.5 cm. depr. plicately rugose, whitish; g.
broad, subdecurrent; s. 2-2.5 cm. glabrous, bay, apex paler and
thickened; sp. 10 x 6.

_M. impudicus_ differs in purplish stem with white down when dry. _M.
foetidus_ differs in strong smell.

=angulatus=, Fr. P. 1-1.5 cm. soon exp. at length folded and angular,
whitish or tinge of tawny; g. distant; s. 2-3 cm. greyish rufescent,
thickened at both ends; sp. 7 x 4.

Closely resembling _M. Curreyi_ and _M. graminum_; differs from former
in ventricose gills not attached to a collar; from the latter in the
gills not being attached to a collar. _M. calopus_ differs in the
shining, bay stem.

[=Kirchneri=, Thurn. P. often umb. pallid whitish brown; g. subdecur.
distant, whitish fuscous; s. filiform, glabrous, brown.

=languidus=, Fr. P. 1.5-2 cm. umbil. flocculose, rugosely sulcate,
whitish tinged yellow or flesh colour; g. narrow