mpan. then exp. umb.
reddish-brown; g. free, purplish-brown; s. 6-7 cm. hollow, paler than
p., volva large, free edge torn; sp. 12 x 6.

Introduced along with living plants into Kew Gardens.

[=coprinus=, Fr. (= _Ag. involucratus_, Mont.) P. fleshy, convex,
viscid, yellowish, sometimes floccosely scaly from fragments of volva;
g. free, smoky-black; s. fistulose, naked, whitish, volva very small.

Unless the small volva is noticed, this fungus will be considered as a
sp. of _Coprinus_.

AGARICUS, L.

A. EDULES. _Large, fleshy._

=augustus=, Fr. P. 8-14 cm. globose then exp. very obtuse, disc even,
rest fibrillosely-scaly, pale yellow-brown; g. crowded, narrow, fuscous,
remote from stem; s. 8-14 cm. solid, ring superior, large, areolately
squamulose below; sp. 6 x 3.5. Edible.

=peronatus=, Mass. P. hemispher. then exp. dull ochre, densely scaly; g.
distant from stem, crowded, purple-brown; s. 10-14 cm. equal,
marginately bulbous, hollow, with large spreading white scales up to
broad spreading ring; sp. 6 x 4. Edible.

Differs from _A. augustus_ in hollow, peronate stem.

=elvensis=, B. and Br. P. 9-15 cm. subglobose then exp. fibrillose,
broken up into large persistent brown scales, edge warted; g. crowded;
s. 8-12 cm. narrowed at base, fibrillose, ring large, thick, warted
below; sp. 8 x 4. Edible.

[=praenitens=, Beck. P. hemispher. exp. white, with densely imbricated
chestnut scales which become smaller and denser at disc; g. remote,
purple-brown, edge white; s. clavato-bulbous, concentrically scaly up to
large ring, white; sp. 7-8 x 5.

=arvensis=, Schaeff. P. 10-24 cm. conico-campan. then exp. smooth,
even, white often stained yellow, flesh white, unchangeable; g. close to
stem, narrow; s. 6-12 cm. hollow, whitish, floccosely stuffed, ring
pendulous, double, exterior radiately split; sp. 6 x 4. (9-11 x 6 Sacc.)
Edible.

var. _purpurascens_, Cke. Smaller than type. P. tinged purple.

Differs from _Ag. xanthodermus_ in the persistently white flesh.

=xanthodermus=, Genev. (= _Ag. flavescens_, Roze.) P. 6-10 cm. fleshy,
convex, even, glabrous, greyish-white, cuticle becoming yellowish when
touched, and the white flesh changing to yellow when broken; g. free,
sinuate, pale rose then grey, finally purple-brown; s. cylindrical,
stuffed, ring thin, flesh deep yellow at base, rest white; sp. ----.

Differs from _A. arvensis_ in flesh becoming yellow, and in yellow base
of stem.

[=ammophilus=, Me