figure were found near Columbus and photographed by
Dr. Kellerman. I have not found the plant as far south as Chillicothe,
though I found it frequently in the northern part of the state. It grows
in the woods on leaf-mould.

_Helvella lacunosa. Afz._

THE CINEREOUS HELVELLA. EDIBLE.

[Illustration: Figure 421.--Helvella lacunosa.]

Lacunosa, full of pits or pitted. This is a beautiful plant, very
closely related to the Morchellas.

The pileus is inflated, lobed, cinereous black, lobes deflected, adnate.

The stem is hollow, white or dusky, exterior ribbed, forming intervening
cavities.

The asci are cylindrical, and stemmed. The sporidia are ovate and
hyaline.

The deep longitudinal grooves in the stem are characteristic of this
species. The plants from which the halftone was made were collected near
Sandusky and photographed by Dr. Kellerman. They grow in moist woods. I
found the plants frequently in the woods near Bowling Green and
occasionally about Chillicothe, growing about well-decayed stumps.

_Hypomyces. Tul._

Hypomyces means upon a mushroom. It is parasitic on fungi. Mycelium
byssoid; perithecia small; asci 8-spored.

_Hypomyces lactifluorum. Schw._

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

Figure 422.--Hypomyces lactifluorum. The entire plant is a bright
yellow. Natural size.]

Lactifluorum means milk-flowing. It is parasitic on Lactarius, probably
piperatus, as this species surrounded it. It seems to have the power to
change the color into an orange-red mass, in many cases entirely
obliterating the gills of the host-species, as will be seen in Figure
422.

The asci are long and slender. The sporidia are in one row,
spindle-shaped, straight or slightly curved, rough, hyaline, uniseptic,
cuspidate, pointed at the ends, 30-38x6-8u.

This very closely resembles Hypomyces aurantius, but the sporidia are
larger, rough and warted and the felt-like mycelium at the base is
wanting.

It occurs in various colors, orange, red, white, and purple. It is not
plentiful, occurring only occasionally. Capt. McIlvaine says, "When it
is well cooked in small pieces it is among the best." It is found from
July to October.

_Leptoglossum luteum. (Pk.) Sac._

[Illustration: Figure 423.--Leptoglossum luteum.]

Leptoglossum is from two Greek words, meaning thin, delicate, and
tongue; luteum means yellowish.

The club is distinct from the stem, smooth, compressed, generally with a
groove on one side