za vesiculosa. Bull._

THE BLADDERY PEZIZA. EDIBLE.

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

Figure 432.--Peziza vesiculosa.]

Often in thick clusters. Those in the center are frequently distorted by
mutual pressure; large, entire, sessile, at first globose; closed at
first, then expanding; the margin of the cup more or less incurved,
sometimes slightly notched; disk pallid-brown, externally; surface is
covered with a coarsely granular or warty substance which plainly shows
in the photograph. The hymenium is generally separable from the
substance of the cap. The spores are smooth, transparent, continuous,
elliptical, ends obtuse.

They are found on dung-hills, hot-beds or wherever the ground has been
strongly fertilized and contains the necessary moisture. This is an
interesting plant and often found in large numbers. Vesicolosa means
full of bladders, as the picture will suggest.

I found a very nice cluster on the 25th of April, 1904, in my stable.

_Peziza scutellata. Linn._

THE SHIELD-LIKE PEZIZA.

[Illustration: Figure 433.--Peziza scutellata. Very small but will show
form under the glass.]

Becoming plane, vermillion-red, externally paler, hispid towards the
margin with straight black hairs. Spores ellipsoid. Found on damp rotten
logs from July to October. Very plentiful and very pretty under the
magnifying glass.

_Peziza tuberosa. Bull._

THE TUBEROUS PEZIZA.

[Illustration: Figure 434.--Peziza tuberosa. Natural size.]

Tuberosa, furnished with a tuber or sclerotium. The cup is thin,
infundibuliform, bright brown, turning pale.

The stem is elongated, springing from an irregular black tuber, called
sclerotium. The stems run deep into the earth and are attached to a
sclerotium, which will be seen in the halftone. Many fungus plants have
learned to store up fungus starch for the new plant.

The sporidia are oblong-ellipsoid, simple. It is called by some authors
Sclerotinia tuberosa. It grows on the ground in the spring and may be
known by its bright brown color and its stem running deep into the earth
and attached to a tuber.

_Peziza hemispherica. Wigg._

Sessile, hemispherical, waxy, externally brownish, clothed with dense,
fasciculate hairs; disk glaucous-white. This is called by Gillet Lachnea
hemispherica. The cups are small, varying much in color and the sporidia
are ellipsoidal. They are found on the ground in September and October.
Found in Poke Hollow.

_Peziza leporina.