[=carpathicus=, Kalchb. P. exp. subumb. rather viscid, brownish, hygr. edge striatulate; g. rotundato-adnexed, pallid; s. even, naked above, pallid, rest bay, white downy base rooting. ** _Stem (at least when dry) everywhere pruinosely velvety._ =Wynnei=, B. and Br. P. 2.5-4 cm. soon plane, subumb. lilac-brown; g. adnexed, lilac; s. 3-6 cm. paler than p., scurfy; 7-8 x 4. =erythropus=, Fr. P. 2-3 cm. obtuse, even, then rugulose, pallid; g. broad, lax, pallid, connected by veins; s. 5-8 cm. hollow, striate, glabrous, dark red, base with white down; sp. 8-10 x 5-6. Differs from _Collybia acervata_ by the broad distant gills. [=dispar=, 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.