d
red near base.

=murinaceum=, Bull. Smell strong. P. 5-10 cm. exp. sometimes subumb.
grey, silky, cracking into squamules; g. deeply sinuate, broad, grey; s.
grey with darker squamules; sp. ----.

[=bisontinum=, Roll. P. pulvinate, cuticle thick, brown with greenish
tinge, virgate with minute adpr. fibrils; g. thick, grey, with flat,
transverse, more or less branched veins; s. solid, narrowed below,
fibrillosely striate, with minute dark granules above, pale; 10-12 x 6.

=hordum=, F. P. exp. subumb. grey, dry, glabrous then breaking up into
squarrose scales; g. rather distant, becoming greyish; s. 6-8 cm.
whitish, glabrous; sp.

=virgatum=, Fr. P. rigid, 5-9 cm. exp. umb. very dry, greyish, virgate
with radiating blackish lines; umb. often broken up into squamules; g.
broadly emarginate, becoming greyish, crowded; s. 7-9 cm. striate,
glabrous, whitish; sp. 6-8 x 5-6.

The only dry sp. with a virgate pileus.

[=dissultans=, Karst. P. fragile, thin, convexo-plane, acutely umb. very
dry, hoary with dense subreticulately interwoven superficial fibrils,
grey; g. hoary; s. hollow, equal, white, loosely fibrillose, apex
pruinose; sp. 5-6 x 4.

[=elytroides=, Scop. P. exp. obt. scabrid, disc floccosely scurfy, grey;
g. broad, grey; s. with dense fibrils directed upwards.

[=opicum=, Fr. P. umb. even, soon squamulose, greyish as is also the
flesh; g. arcuato-adfixed, hoary; s. stuffed, equal, almost glabrous.

IV. SERICELLA. _Pileus at first silky, soon glabrous, quite dry._

* _Gills broad, thickish, rather distant._

=sulphureum=, Fr. Strong smelling. Entirely sulphur yellow or p. tinged
rufous. P. 3-8 cm. subumb. silky, even; g. distant; s. 5-10 cm. striate,
same colour inside; sp. 9-10 x 5.

=bufonium=, Pers. P. 3-7 cm. soon plane, subumb. silky, soon glabrous,
rugulose, opaque, purplish brown, umber, or tan; g. yellowish-tan then
pallid; s. 5-7 cm. flocculose, coloured like p.; sp. subgl. 4-5.

=lascivum=, Fr. Smell strong. P. 4-5 cm. exp. and subdepressed, even,
silky then glabrous, tan colour then pallid; g. arcuately adnexed,
crowded, white; s. 4-6 cm. solid, rigid, tomentose, whitish, apex mealy,
rooting; sp. 8-10 x 4-5.

var. _robustum_, Cke. Robust. P. whitish, silky; smell weak or none.

=interveniens=, Karst. P. convexo-plane, depr. silky then glabrous,
rugulose near edge, tan then pale; g. arcuato-adnex. crowded, pallid; s.
solid, equal, rooting, fibrillose, pallid; sp. 6-7 x 2-2.5.