ian ring, white above; sp.
glob. 5-6.

[=luteovirens=, A. and S. All except white squamulose stem straw-colour;
p. torn into squamules, greenish when mature; ring imperfect.

=aurantia=, Schaeff. P. 5-8 cm. rusty orange; g. adnexed; s. 6-8 cm.
stout, orange and concentrically squamose up to ring, white above; sp.
----.

[=dehiscens=, Viv. P. hemispher. then depr. yellowish ochre; g.
adnexo-decur., broad; s. cylindric, scaly, viscid, ring very narrow,
persistent.

=ramentacea=, Bull. P. 5-8 cm., obtuse, whitish or yellowish with darker
squamules; g. adnexed becoming free; s. 3-5 cm. with brown squamules up
to the oblique fugitive ring; sp. ----.

[=Ambrosii=, Bres. P. convex, exp. dry, soft, floccosely-downy,
snow-white, edge append.; g. white; s. even above ring, floccose below,
white; ring inferior, torn, deciduous, sp. 4-5 x 2.5.

[=cingulata=, Fr. P. thin umb. greyish brown, squamosely fibrillose; g.
greyish white; s. even, ring median.

[=scruposa=, Paulet. P. exp. glabrous, rough with contorted ridges,
subfuscous; g. sinuato-adnate; s. solid, equal, rooting, ring firm,
narrow.

[=albosericea=, Brig. White. P. exp. broadly umb., even; g. crowded; s.
silky, base tuberous, ring remote, fugacious.

=constricta=, Fr. All white. P. 3-5 cm. obtuse, dry, glabrous, silky; g.
emarginate, adnexed, or almost free; s. 3-6 cm. solid, fibrillose or
squamulose, ring apical, narrow; sp.

Much stouter than _A. subcava_.

[=verrucipes=, Fr. Pure white. P. glabrous; s. with brown warts up to
annular zone, ring absent; g. sinuato-adnate.

** _Gills narrowed behind, more or less decurrent, with no sinus._

[=imperialis=, Fr. P. brown with darker scales; g. deeply decurrent;
ring double, sp. 12-14 x 5.

[=Laschii=, Fr. P. fawn colour, even, glabrous, thin ring erect; g.
crowded, white.

[=tumescens=, Viv. P. exp. even, glabrous, whitish; g. adnate, pale
ochre, then tinged red; s. solid, stout, narrowed from the base,
whitish, ring fugacious.

[=rhadigosa=, Fr. P. depr. moist, whitish with brownish adpressed scales
at disc; g. decur., broad, white; s. short, equal, ring reflexed.

=mellea=, Vahl. P. 5-12 cm. soon expanded, yellowish-brown, squamulose,
margin striate; g. slightly decurrent; s. 8-12 cm. floccose up to
spreading ring, base honey-colour; sp. 9 x 5-6.

Mycelium forming long black strands. A destructive parasite.

=denigrata=, Fr. P. 3-5 cm. obtuse, dark brown, rather viscid, spotted
with droplike