d of a rich vermilion or orange color. The =gills= are rounded
at the stem and adnexed, rather broad in the middle, distant, yellow,
the edge white, or sometimes the gills are entirely white. The =stem= is
very slender, with a root-like process entering the rotten wood, smooth
except the hairs on the root-like process, yellow.

Figure 100 is from plants (No. 2780, C. U. herbarium) collected in a
woods near Ithaca. It has been found here several times.

=Mycena cyanothrix= Atkinson.--This is a very pretty plant growing on
rotting wood in clusters, often two or three joined at the base, the
base of the stem inserted in the rotten wood for 1--2 cm., and the base
is clothed with blue, hair-like threads. The plants are 6--9 cm. high,
the cap 1--2 cm. broad, and the stem not quite 2 mm. in diameter.

The =pileus= is ovate to convex, viscid when young. The color is bright
blue when young, becoming pale and whitish in age, with a tendency to
fuscous on the center. The cap is smooth and the margin finely striate.
After the plants have dried the color is nearly uniform ochraceous or
tawny. The =gills= are close, free, narrow, white, then grayish white,
the edge finely toothed or fimbriate. The =spores= are globose, smooth,
6--9 mu. The =stem= is slender, hollow, faintly purple when young,
becoming whitish or flesh color, flexuous, or nearly straight, even,
often two united at the base into a root-like extension which enters the
rotten wood. The base of the stem is covered with deep blue mycelium
which retains its color in age, but disappears on drying after a time.
Figure 101 is from plants (No. 2382, C. U. herbarium) collected at
Ithaca, in woods, June 16, 1898.

=Mycena haematopa= Pers.--This is one of the species of _Mycena_ with a
red juice which exudes in drops where wounds occur on the plant. It is
easily recognized by its dense cespitose habit, the deep blood red
juice, the hollow stem, and the crenate or denticulate sterile margin of
the cap. Numbers of the plant occur usually in a single cluster, and
their bases are closely joined and hairy. The stems are more or less
ascending according to the position of the plant on the wood. The plants
are 5--10 cm. high, the cap is 1--2.5 cm. broad, and the stem 2--3 mm.
in thickness.

[Illustration: FIGURE 101.--Mycena cyanothrix. Cap viscid when young,
blue, becoming pale and whitish in age, and fuscous in center; gills
white; stem faintly purple when young, then flesh color