on: Figure 361.--Cyclomyces Greenii. Old specimens.]

The pileus is two to three inches broad, globose at first, convex,
sometimes undulate, somewhat zoned, tomentose, dry, cushion-formed,
cinnamon-brown, rather showy.

The gills are in concentric circles around the stem, growing larger and
larger as they reach the margin of the cap. In the young plant the gills
are divided into long divisions but in the older plant these division
lines disappear as will be seen in Figure 361. The edges of the gills
are white at first, as will be seen in Figure 361, but finally becoming
cinnamon-brown.

The stem is central, tapering upward, quite large and swollen at times
very much like Hydnum spongiosipes; the color is the same as the pileus.

This is a very interesting plant and quite rare in Ohio, however, I
found several plants in the fall of 1905, on Ralston's Run. In the same
locality I found Boletus badius, and when I first saw C. Greenii I came
near mistaking it for the same plant and so neglecting it, the caps
being at first glance so much alike.

_Gloeoporus. Mont._

Gloeoporus is from two Greek words, meaning gluten and pore. The
plants of this genus resemble the polyporus and are frequently placed
under that genus.

_Gloeoporus conchoides. Mont._

Conchoides means like a shell.

The pileus is leathery or woody, at first fleshy, soft, effused, with
upper margin reflexed; thin, silky, whitish, with edge of the margin
often reddish. It has a trembling, gelatinous, spore-bearing surface,
often somewhat elastic.

The pores are short, very small, round, cinnamon-brown.

There are several synonyms. Polyporus dichrous, Fr., and P.
nigropurpurascens, Schw. Montgomery places it in the above genus because
of its gelatinous hymenium.

CHAPTER VIII.

HYDNACEAE--FUNGI WITH TEETH.

There is, perhaps, no family in mycology that has a greater variety in
form, size, and consistency than this. Some species are very large, some
are small, some fleshy, and some are corky or woody. The fruiting
surface is the special characteristic marking the family. This surface
is covered with spines or teeth which nearly always point to the earth.

Many of the Hydnaceae are shelving, growing on trees or logs; some grow
on the ground on central, but usually eccentric, stems. The genera of
Hydnaceae are distinguished by the size, shape, and attachment of the
teeth. The following genera are included:

Hydnum--Spines discrete a