oad at
middle, whitish; sp. 8 x 5.

[=dictyorhizus=, D. C. White. P. very thin, orbicular, sinuate,
subsessile, base reticulately-fibrillose; g. simple, unequal; sp. 6
long.

=acerosus=, Fr. P. 2-3 cm. very thin, reniform, plane, striate,
sublobed, grey, silky white when dry; g. narrow, crowded, grey; s.
obsolete, base substrigose; sp. glob. 5-6.

[=Severinii=, Com. Shining white. Velvety then almost glabrous,
orbicular, edge entire, incurved; g. decur. simple; s. short, incurved.

C. RESUPINATI. _Pileus at first resupinate; gills radiating from an
excentric point; then reflexed, sessile._

* _Pileus fleshy, uniform in texture._

=porrigens=, Pers. White. P. 4-7 cm. thin, tough, resup. then ascending,
ear- or fan-shaped, glabrous upwards; g. very narrow; sp. 7-8 x 6.

Resembling _P. petaloides_ in habit but white, and no stem-like base.

[=pinsitus=, Fr. P. fleshy, soft, horizontal, silky-villose, wavy, hygr.
dingy then white; g. broad, distinct; sp. rough, 10-11 long.

[=nidulans=, Pers. P. subreniform, tomentose, yellow; g. broad,
tawny-orange; sp. 3-5 x 1.

[=caesiozonatus=, Rab. P. subsessile, tough, plane then depr. behind,
downy, ochre-brown, zoned with bluish grey; g. broad, brownish yellow.

=septicus=, Fr. P. 1-2 cm. rather fleshy, resup. then reflexed,
pubescent, white; s. thin, 2-3 mm. incurved, disappearing; g. distant;
sp. 8-10 x 6.

_Claudopus variabilis_ differs in tinted gills and spores.

[=roseolus=, Q. P. convex, conchoid, translucent, striate, rather
woolly, rosy-purple; g. rosy, edge darker; s. curved, downy, colour of
p.; sp. 8.

** _Pileus fleshy, striate, upper surface gelatinous, or with a
viscid pellicle._

=mastrucatus=, Fr. P. 4-5 cm. resup. then exp. and horizontal, often
lobed, brown, with erect bristly squamules; g. broad, greyish white; sp.
----.

[=rivulorum=, Pat. and Doas. P. subgelatinous, pellucid, rusty brown and
covered with white down, horizontal or ascending; g. grey then vinous;
s. lateral, tubercular, downy, white, rosy when touched; sp. 4-6.

[=tremens=, Q. P. reniform or flabellate, diaphanous, rosy-violet,
tremelloid; g. sinuate, pinkish; s. lateral, colour of p.; sp. rough,
6-7.

=atrocoeruleus=, Fr. P. 2-5 cm. fleshy, downy, dusky blue; g. broad,
whitish; sp. glob. 2-3.

P. sometimes brownish, and g. sometimes yellowish.

[=myxotrichus=, Lev. P. reniform, at first viscid, becoming spongy,
covered with white down, sessile