rved, naked, even; g. white, veined, reddish when bruised; s.
3-5 cm. solid, glabrous, white; sp. 9-10 x 4.

Differs from _T. panaeolum_ in p. not becoming grey.

=fallax=, Peck. P. 2-3 cm. soon plane, yellow, disc darker, even; g.
becoming yellowish; s. 2.5 cm. yellow, hollow; sp. 4-5 x 3.

VII. HYGROPHANA. _Pileus thin, subumbonate, hygrophanous._

* _Gills whitish, not spotted._

=melaleucum=, Pers. P. 3-7 cm. convex then plane, umb. blackish then
paler, glabrous; g. emarginate adnexed, white; s. 5-8 cm. equal,
elastic, whitish with dark fibrils; sp. 10 x 4-5.

_Coll. stridula_ much resembles this sp. but has a brownish stem. _T.
arcuatum_ has flesh tinged brown. _T. oreinum_ has apex of stem
squamulose.

var. _adstringens_, Pers. P. exp. pitch black and rather shining when
dry; g. tinged pink; s. naked.

var. _polioleucum_, Fr. P. obtusely umb. livid then grey; s. apex
white-pruinose.

var. _porphyroleucum_, Bull. P. fleshy, umbo disappearing, sooty or
fuscous-rufescent; s. solid, subfibrillose; g. white.

[=microcephalum=, Karst. P. 2-3 cm. convexo-plane, livid-sooty then
pale; g. much crowded, soft, white; s. tall, 9-12 cm. splitting easily
into fibres, pallid, glabrous; sp. subg. 5-6 x 5.

[=turritum=, Fr. P. conico-exp. umb. moist, obscure purple, somewhat
spotted; g. soon free, white; s. stuffed then hollow, white with dusky
fibrils.

=grammopodium=, Bull. P. 7-12 cm. camp. conv. then depr. umb. glabrous,
ruddy then pallid; g. arcuato-adnate, crowded; s. 7-10 cm. stuffed,
coarsely striate, glabrous, pallid; sp. 7-8 x 4.

[=strictipes=, Karst. P. soft, gibbous, plane or depr. white or
yellowish-white, centre often tinged; g. closely crowded, shining white,
entire; s. solid, equal, cylindrical, base usually thickened, straight,
white, glabrous; sp. 6-9 x 4-5.

=brevipes=, Bull. P. 3-6 cm. brown then pale, glabrous, convex then
plane; g. crowded, tinged fuscous then pale; s. 2-2.5 cm. solid, rigid,
brown outside and inside; sp. 7 x 4.

=humile=, Pers. P. 5-8 cm. umb. then convex or depressed, even,
glabrous; g. crowded, ventricose; s. 3-5, greyish white, villosely
pulverulent, stuffed; sp. 7-8 x 5.

Differs from _T. brevipes_ in pale stem and tufted habit.

=exsiccum=, Fr. P. 3-5 cm. exp. then umb. greyish brown then hoary; g.
crowded, narrow, pure white; s. 2-3 cm. solid, glabrous, rather shining;
sp. 6-7 x 4.

=subpulverulentum=, Pers. P. 2-3 cm. greyish white, pulverulent, conve