++ _Volva torn into shreds._

=dilectus=, Fr. P. 1.5-2 cm. very thin, campan., obtuse, finely striate, rosy white then tawny, furfuraceo-floccose with rosy meal, at length splitting, revolute and naked; g. free, sublanceolate, crowded; s. 5-7 cm. whitish and powdered with rosy meal, base thickened, volva reduced to squamules; sp. ----.

Differs from _C. oblectus_ in very rudimentary volva, and generally smaller size.

=roseotinctus=, Rea. P. 7-11 5-7 mm. cylindr. then revolute, umb.

brown with rosy meal; g. adnexed, broad; s. up to 5 cm. bulbous, white, with rosy meal when young; sp. 9-11 5-6.

Perhaps too closely allied to _C. dilectus_.

II. _Volva absent, ring present on stem._

* _Large; Pileus 8-15 cm. high._

=comatus=, Fr. P. cylindr. then campan. 9-15 cm. high, whitish or tinged ochre, becoming broken up into large reflexed scales; g. very slightly adnexed; s. 12-20 cm. white, base bulbous, rooting, ring loose; sp.

12-14 8-10. Edible.

var. _clavatus_, Q. P. ovate, g. free, white then black, no intermediate pink colour; s. without a ring.

=ovatus=, Schaeff. P. 8-10 cm. high, ovate then exp. striate, soon broken up into broad adpressed scales; g. free; s. white, base bulbous, rooting, ring deciduous; sp. 12 8. Edible.

Differs from _C. comatus_ in smaller size, and ovate form when young.

=atramentarius=, Fr. P. rather fleshy, 8-12 cm. high, ovate then campan.

fluted, edge uneven, silvery grey, apex squamulose; g. free; s. 10-16 cm. white, hollow, ring basal, evanescent; sp. 12 6. Edible.

=soboliferus=, Fr. P. thin, ovate then exp. plicate below, disc truncate, brownish with darker squamules, rest greyish white; g. free; s. 12-20 cm. white, stuffed, ring fugacious; sp. 15 7. Edible.

Differs from _C. atramentarius_ in squamulose truncate disc, stuffed stem, and larger spores.

[=pyrenaeus=, Q. P. narrowly ellipt. up to 10 cm. long, striate, pearl grey, with a dense veil of free white fibrils; g. free; s. 10-15 cm.

hollow, white, ring basal, fugacious; sp. subgl. 12-18.

Differs from _C. atramentarius_ in white veil.

[=praegnans=, Fr. P. campan. 18-20 cm. high, not striate, grey, crowded with white squamules; g. free, umber from first; s. solid, fusiform, rooting, squamulose, ring free; sp. ----.

Differs from _C. atramentarius_ in solid s.

** _Small; pileus never exceeding 3 cm. high._

=Hendersonii=, Fr. P. subcylindrical then exp. up to 1 cm. apex tawny rest grey, fluted, minutely pruinose; g. free; s. 3-4 cm. with a permanent ring below middle; sp. 10-12 6.

[=bulbillosus=, Pat. P. 8-10 mm. grey disc yellow, striate, covered with white meal; g. grey; s. 2-3 cm. white, base bulbous, ring loose, median; sp. 8-9 6-7.

Differs from _C. Hendersonii_ in bulbous stem.

[=ephemeroides=, Fr. P. campan. plicato-sulcate, whitish, disc tinged yellow, up to 1 cm. sprinkled with superficial flecks; g. free; s. 2-4 cm. whitish, ring free, base with a pilose bulb; sp. 11-12 6-7.

Differs from _C. bulbillosus_ in squamulose pileus and strigose bulb.

var. _muscorum_, sp. 7-9 6-8.

[=scauroides=, G.o.dey. P. ovate then campan. striate, white then purplish, floccosely squamulose; g. free; s. white, with a marginate bulb and ring.

[=Bresadolae=, Schulz. P. subcylindrical, greyish-white, apex tinged brown; g. black, edge white; s. tapering upwards, white, glabrous, ring deciduous.

III. _Volva and ring absent. Veil practically absent; p. either glabrous or with minute innate squamules, especially near the apex, not splitting along the lines of the gills._

* _Gills attached to the stem._

=fuscescens=, Fr. P. 4-6 cm. ovate then exp. not lobed, disc fuscous, rest greyish brown, powdered with meal at first; g. narrow towards the front; s. white, hollow, somewhat fibrillose; sp. 8-10 5-6.

Differs from _C. atramentarius_ in rufous p. not lobed.

[=tergiversans=, Fr. P. conical then exp. 6-12 cm. rusty brown, grooved, cracked into squamules; g. broadly adnate; s. white, apex sulcate.

Allied to _C. micaceus_; differs in squamulose and not micaceous p.

[=Lerchenfeldii=, Schulz. P. hemispher. apex elevated, brownish grey, edge wavy silvery grey then violet; g. violet, shining; s. fibrillose or squamulose.

** _Gills free._

[=cylindricus=, Fr. P. cylindrical then exp. 8-12 cm. across, rimosely striate, a few adpr. squamules, whitish brown; g. narrow; s. 15-21 cm.

equal, fibrillose.

[=Mayrii=, Allesch. P. campan. exp. white, striate, small yellow-brown squamules near edge, disc sparingly scaly; g. free; s. white, striate, base globose, marginate, hollow to swollen base; sp. 6-7 3-4.

Allied to _C. atramentarius_.

=flocculosus=, Fr. P. ovate then exp. 4-7 cm. across, dingy white, striate, squamules innate; g. narrow; s. 6-10 cm. white, silky, hollow; sp. 10 7-8.

Differs from _C. aratus_ in white p., and from _C. lagopus_ in glabrous stem.

=squamosus=, Morgan. P. 4-6 cm. sulcate, grey, with persistent spreading brown scales; g. free; s. 9-14 cm. with brown spreading scales up to ring; sp. 9-10 5.

IV. _Volva and ring absent. Veil very evident--at least in young state--as a felty coating, which breaks up during expansion of p.

into patches; cottony, squamulose, fibrillose or mealy. Not glistening or micaceous._

* _Veil thick and felty, breaking into patches._

+ _Gills attached to stem._

=aphthosus=, Fr. P. campan. even, livid, 2-3 cm. white veil at first continuous then broken into floccose patches; g. adnate; s. 5 cm. white, hollow, fibrillose; sp. 15-16 10.

Differs from _C. varicus_ in hollow stem.

[=phaeosporus=, Karst. P. conico-cylindrical then flattened, everywhere delicately striate, at first enclosed in a rufescent veil which breaks up into patches, soon naked and white; g. adnexed; s. glabrous, white, hollow; sp. 9-15 4-9.