Tricholoma pædidum. Fr.
Paedidum means nasty, stinking.
The pileus is small, about one and a half inches broad, rather fleshy, tough; convex, then flattened, soon depressed around the conical umbo; fibrillose, becoming smooth; smoky gray, somewhat streaked; moist; margin involute, naked.
The gills are adnexed, crowded, narrow, white, then grayish, somewhat sinuate with a slight decurrent tooth.
The stem is short, slightly striate, dingy gray, thickened at the base. The spores are elliptical or fusiform, 10–11×5–6µ.
The specific name, "nasty" or "stinking," has really no application to the plant. It is said to be very good when cooked. It is found in well manured gardens and fields, or about manure piles.
It differs from T. sordidum in having no trace of violet color. T. lixivium differs in the free truncate gills.
Tricholoma lixivium. Fr.
Lixivium means made into lye; hence, of the color of ashes and water.
The pileus is two to three inches broad; flesh thin; convex then plane; umbonate, never depressed; even; smooth; grayish-brown when moist, then umber; margin membranaceous, at length slightly striate, sometimes wavy.