us erected to accommodate the species of _Clitocybe_ which
have warty or spiny spores. The species with spiny spores are few. The
genus in which this plant is placed by some is _Laccaria_, and then the
plant is called _Laccaria laccata_. There are several other species of
_Clitocybe_ which are common and which one is apt to run across often,
especially in the woods. These are of the funnel form type, the cap
being more or less funnel-shaped. =Clitocybe infundibuliformis=
Schaeffer is one of these. The cap, when mature, is pale red or tan
color, fading out in age. It is 5--7 cm. high, and the cap 2--4 cm.
broad. It is considered delicious. =Clitocybe cyathiformis=, as its name
indicates, is similar in form, and occurs in woods. The pileus is of a
darker color, dark brown or smoky in color.

=Clitocybe illudens= Schw. =Not Edible.=--This species is distributed
through the Eastern United States and sometimes is very abundant. It
occurs from July to October about the bases of old stumps, dead trees,
or from underground roots. It is one of the large species, the cap being
15--20 cm. broad, the stem 12--20 cm. long, and 8--12 mm. in thickness.
It occurs in large clusters, several or many joined at their bases. From
the rich saffron yellow color of all parts of the plant, and especially
by its strong phosphorescence, so evident in the dark, it is an easy
plant to recognize. Because of its phosphorescence it is sometimes
called "Jack-my-lantern."

The =pileus= is convex, then expanded, and depressed, sometimes with a
small umbo, smooth, often irregular or eccentric from its crowded habit,
and in age the margin of the pileus is wavy. The flesh is thick at the
center and thin toward the margin. In old plants the color becomes
sordid or brownish. The =gills= are broad, not crowded, decurrent, some
extending for a considerable distance down on the stem while others for
a less distance. The =stem= is solid, firm, smooth, and tapers toward
the base.

While the plant is not a dangerously poisonous one, it has occasioned
serious cases of illness, acting as a violent emetic, and of course
should be avoided. Its phosphorescence has often been observed. Another
and much smaller plant, widely distributed in this country as well as
Europe, and belonging to another genus, is also phosphorescent. It is
_Panus stipticus_, a small white plant with a short lateral stem,
growing on branches, stumps, trunks, etc. When freshly developed the
phos