=sociatus=, Fr. P. ovate then campan. plicate, subsquamulose or scurfy, disc umber and becoming depr. 2 cm.; g. narrowed behind, attached to a collar; s. 4-5 cm. white, glabrous, not pellucid; sp. ----. Gills much nearer s. than in _C. plicatilis_, much narrowed behind, black. [=sulcato-crenatus=, Steinh. P. cylindrical then campan. soon plane, sulcato-crenate, almost glabrous, yellow, disc brown, even, becoming depr.; g. remote from stem, distant; s. yellow, apex brown; sp. obtusely triangular, compressed. Differs from _C. plicatilis_ in yellow p. and s. [=Patouillardii=, Q. P. conico-campan. then plane, coarsely striate up to disc, grey, disc rough with minute reddish granules; g. attached to collar distant from s.; s. 4-7 cm. white, glabrous, fragile; sp. angularly globose, 6-8. Differs from _C. nycthemerus_ in white s.; and from _C. velaris_ in rough disc. =papillatus=, Fr. P. elliptical then campan. becoming plane and upturned; disc prominent and rough with minute warts, dark, striate, covered with greyish scurf, .5-1 cm.; g. free; s. 2.5 cm. white, hyaline, hollow; sp. 15 x 7. [=affinis=, Karst. P. conico-cylindr. then exp. greyish white, disc pale rufous, plicate, scurfy; g. free; s. flaccid, glabrous, pallid; sp. 6-8 x 5-7. =radiatus=, Fr. P. cylindrical, soon plane and splitting, yellowish, disc darker, then whitish, minutely pilose when young; g. almost free; s. 1-3 cm. hyaline, pilose; sp. 7-8 x 5. =Gibbsii=, Mass. and Crossl. Very minute, p. 0.5 mm. hemispher. then exp. striate, glabrous, pale ochre; g. adnate, few; s. 4-7 mm. white, glabrous; sp. subcircular, compressed, 8-9 diam.; cystidia piriform. [=lanatus=, Boud. P. soon campan. plicately striate, greyish rufous disc darker; g. free; s. glabrous, white, slightly bulbous. ** _Pileus glabrous._ + _Gills attached to stem._ # _Stem downy or pulverulent._ =tardus=, Karst. P. ovoid then campan. 2.5-5 cm. coarsely striate, bay then ochre, glabrous; g. adnate; s. 6-10 cm. white, slightly flexuous, equal; sp. angularly ellipt. 12-18 x 7-9. Differs from _C. deliquescens_ in smooth disc and adnate g. [=Gilletii=, Jacobasch. (= _Cop. intermedius_ Gill.). P. ovato-campan. grey, disc yellow; pulverulent then glabrous, edge striate; g. ovato-elongate, blackish; s. slender, glabrous, hollow, with a membranaceous, distant, fixed erect ring. [=attenuatus=, Gill. P. conico-campan. even, glabrous, edge sulcate, upturned when dry, apex yellowish; g. broad, ventricose, reddish-brown; s. long, slender, hollow, narrowed towards base. ## _Stem glabrous._ [=auricomus=, Pat. P. elliptic-oblong then campan. finely striate, pale greyish red disc darker, glabrous, 1.5-2 cm.; g. adnate; s. 5-8 cm. white, glabrous; sp. ----. Young plant enveloped in a golden yellow weft (= Ozonium). =congregatus=, Fr. P. cylindrical then campan. edge slightly striate, glabrous, viscid, ochre, 1.5-2 cm.; g. slightly adnexed; s. 2-3 cm. smooth, hollow, white; sp. ----.