Figure 197.—Entoloma grayanum. One-half natural size.
The pileus is convex to expanded, sometimes broadly umbonate, drab in color, the surface wrinkled or rugose, and watery in appearance. The flesh is thin and the margin incurved.
The gills are at first drab in color, but lighter than the pileus, becoming pinkish in age. The spores on paper are very light salmon-color. They are globose or rounded in outline, 5–7 angled, with an oil globule, 8–10µ, in diameter.
The stem is of the same color as the pileus, but lighter, striate, hollow, somewhat twisted, and enlarged below. The above accurate description was taken from Atkinson's Studies of American Fungi. The plants were found near a slate cut on the B. & O. railroad near Chillicothe. Not edible. This species and E. grisea are very closely related. The latter is darker in color, with narrower gills, and has a different habitat.
Entoloma subcostatum. Atkinson n. sp.
Plate XXX. Figure 198.—Entoloma subcostatum.
Mature plants showing broad gills and very thin flesh, also fibrous striate stems.
Subcostatum means somewhat ribbed, referring to the gills.
Plants gregarious or in troups or clusters, 6–8 cm. high; pileus 4–8 cm. broad; stems 1–1.5 cm. thick.