mber; g. white then tinged red; s. solid, white,
squamulose, apex striate.

=immundum=, Berk. P. 5-9 cm. greyish, silky-squamulose, stained, margin
incurved; g. greyish pink, separating readily from flesh; s. 4-6 cm.
greyish, fibrillose; sp. subg. 4-5. Every part blackish when bruised.

=inodermeum=, Fr. P. 2-5 cm. acute then umb. rufous brown, fibrillose
and with radiating scales; g. free, ventricose, white, spotted red when
bruised; s. 7-8 cm. fibrous, white with rufous tinge, apex powdered
white; s. 7-8 x 4.

[=furvum=, Fr. P. campan.-exp. wavy, dry, brownish, fibrillosely
striate; g. entire, white then greyish; s. solid, fibrillose.

[=unguentatum=, Fr. P. exp. umb. grey, viscid, floccosely-squamulose; g.
very broad, crowded, whitish; s. white, solid, fibrillose.

[=gausapatum=, Fr. P. bullate, obtuse, wavy, covered with dense
superficial fibrils, edge at first incurved and with white wool; g.
adnate, grey; s. solid, white, fibrillose.

=terreum=, Schaeff. P. 5-8 cm. exp. umb. bluish grey with minute
squamules; g. greyish, sinuate; s. whitish, fibrillose; sp. subgl. 5-6.

var. _orirubens_, Q. Edge of g. reddish.

var. _atrosquamosum_, Chev. P. grey with small black scales, g. whitish.

var. _argyraceum_, Bull. Entirely pure white, or p. greyish.

var. _chrysites_, Jungh. P. tinged yellowish or greenish.

[=squarrulosum=, Bres. P. convex then exp. umb. dry, fuscous then lurid
tan, centre black, with black squamules, edge fibrillose, exceeding
gills; g. broad, crowded, whitish grey, reddish when bruised; s. colour
of p. punctato-squamulose; sp. 7-9 x 4-5.

[=triste=, Fr. P. conic then exp. umb. fuscous, fibrillosely scaly; g.
white then greyish; s. fistulose, slender, floccose.

III. RIGIDA. _Pellicle rigid, punctato-granulate, or broken up into
glabrous fragments when dry._

* _Gills white or pallid, not rufous or grey spotted._

=macrorhizum=, Lasch. Smell strong. P. 10-20 cm. exp. ochraceous, darker
and cracked when old; g. almost free; s. 5-10 cm. stout, ochraceous,
rooting, solid, ventricose; sp. subgl. 5-6.

[=compactum=, Fr. P. soon plane, even, dry, glabrous, livid grey,
compact; g. yellow; s. solid, white.

=saponaceum=, Fr. Smell strong. P. exp. obtuse, dry, livid, tinged
olive, glabrous then often squamulose or punctate, flesh reddish; g.
pallid with greenish tinge; s. 5-10 cm. whitish, somewhat rooting; sp. 5
x 4.

var. _atrovirens_, P. thin, wavy, obscure green with cro