aginous outside.

=Marasmius=. Tough, drying up and reviving when moistened; gills often
connected by veins.

+++ _Gills decurrent._

=Lactarius=. Gills and flesh exuding milk when broken. (In some sp. the
gills are adnate.)

=Hygrophorus=. Gills thick at the base, edge acute, rather waxy, often
branched; pileus often hygrophanous. (In some sp. the gills are adnate
or even free.)

=Clitocybe=. Gills thin, pliant, sometimes powdered with the spores;
stem fibrous outside.

=Omphalia=. Gills thin, pliant, stem cartilaginous outside.

=Pleurotus=. Growing on wood. Stem lateral or excentric when present.

=Cantharellus=. Gills narrow, edge thick, rather waxy, forking.

=Arrhenia=. Gills reduced to very slight wrinkles or veins.

=Nyctalis=. Gills thick, edge blunt. Parasitic on fungi, or among dead
leaves, &c.

** TENACES. Coriaceous, corky, or woody, persistent, rigid when
dry.

=Lentinus=. Pileus coriaceous; gills decurrent, edge toothed or eroded.

=Panus=. Pileus coriaceous; gills decurrent, edge quite entire.

=Xerotus=. Pileus coriaceous; gills forking, edge thick.

=Lenzites=. Horizontal, sessile, woody or corky; gills radiating from
behind.

II. SCHIZOPHYLLAE.
Margin of gills split open.

=Trogia=. Gills resembling folds or wrinkles, edge grooved. (In the only
European species the edge of gills not grooved.)

=Schizophyllum=. Margin of gills split, the split portions rolling
outwards.

ABBREVIATIONS USED.

Cm. = centimetres; compr. = compressed; decur. = decurrent; depr. =
depressed; exp. = expanded; g. = gills; hygr. = hygrophanous; infundib.
= infundibuliform; mm. = millimetres; p. = pileus; s. = stem; sp. =
spores; umb. = umbonate; umbil. = umbilicate.

The measurement given of the stem is that of its average length; that of
the pileus, its average breadth when expanded. The measurement of the
spores is given in micro-millimetres, usually indicated by the Greek
letter mu.

AMANITA, Fries.

* _Margin of volva free, persistent._

+ _Pileus red or deep orange._

[=caesarea=, Scop. P. hemispherical then exp. orange or red, edge
striate, flesh yellowish; g. yellow; s. stout, yellow, ring and volva
lax; sp. 8-10 x 6. Edible.

++ _Pileus white, sometimes tinged yellow or green._

=virosa=, Fr. Entirely white. P. 8-11 cm. conical, then expanded; viscid
when moist; g. free, crowded; s. 10-12 cm. slightly thinner upwards,
squamulose, ring near