nts are gelatinous, with a cap or pileus; the hymenium covered
with acute gelatinous spines, awl-shaped and equal. The basidia are
nearly round with four rather stout, elongated sterigmata, spores very
nearly round.

_Tremellodon gelatinosum. Pers._

[Illustration: Figure 405.--Tremellodon gelatinosum.]

Gelatinosum means full of jelly or jelly-like, from _gelatina_, jelly.

The pileus is dimidiate, gelatinous, tremelloid, one to three inches
broad, rather thick, extended behind into a lateral thick, stem-like
base, pileus covered with a greenish-brown bloom, very minutely
granular.

The hymenium is watery-gray, covered with hydnum-like teeth, stout,
acute, equal, one to two inches long, whitish, soft, inclined to be
glaucous. The spores are nearly round, 7-8u.

These plants are found on pine and fir trunks and on sawdust heaps. They
grow in groups and are very variable in form and size but easily
determined, being the only tremelloid fungus with true spines. The
plants in Figure 405 were photographed by Prof. G. D. Smith of Akron,
Ohio. They are edible. Found from September to cold weather.

_Exidia. Fr._

Gelatinous, marginal, fertile above, barren below. Exidia may be known
by its minute nipple-like elevations.

_Exidia grandulosa. Fr._

[Illustration: _Photo by C. G. Lloyd._

Plate L. Figure 404.--Excidia glandulosa.]

This plant is called "Witches' Butter." It varies in color, from whitish
to brown and deep cinereous, at length blackish; flattened, undulated,
much wrinkled above, slightly plicated below; soft at first and when
moist, becoming film-like when dry. Found on dead branches of oak.

_Hirneola. Fr._

Hirneola is the diminutive of _hirnea_, a jug. Gelatinous, cup-shaped,
horny when dry. Hymenium wrinkled, becoming cartilaginous when
moistened. The hymenium is in the form of a hard skin which covers the
cup-shaped cavities, and which can be peeled off after soaking in water,
the interstices are without papillae and the outer surface is velvety.

_Hirneola auricula-Judae. Berk._

THE JEW'S EAR HIRNEOLA. EDIBLE.

[Illustration: Figure 406.--Hirneola auricula-Judae.]

[Illustration: _Photo by C. G. Lloyd._

Plate LI. Figure 407.--Hirneola auricula-judae.]

Auricula-Judae, the ear of the Jew. The plant is gelatinous; one to four
inches across; thin, concave, wavy, flexible when moist, hard when dry;
blackish, fuzzy, hairy beneath; when covered with white spores it is
cinereou