Unifactum means united or made into one, referring to the stems united in one base root or stem.
The pileus is fleshy but thin, convex; often irregular, sometimes eccentric from its mode of growth; whitish, flesh whitish, taste mild.
The gills are thin, narrow, close, rounded behind, slightly adnexed, sometimes forked near the base, white.
The stems are equal or thicker at the base, solid, fibrous, white, united at the base in a large fleshy mass.
Spores are white, subglobose, .00016 to .0002 of an inch broad. Peck.
I found a beautiful specimen in Poke Hollow, in a beech woods with some oak and chestnut. There was but one cluster growing from a large whitish fleshy mass. There were fifteen caps growing from this fleshy mass. I could not identify species until too late to photograph.
Tricholoma albellum. Fr.
The Whitish Tricholoma. Edible.
The pileus is two to three inches broad, becoming pale-white, passing into gray when dry, fleshy, thick at the disk, thinner at the sides, conical then convex, gibbous when expanded, when in vigor moist on the surface, spotted as with scales, the thin margin naked, flesh soft, floccose, white, unchangeable.
The gills are very much attenuated behind, not emarginate, becoming broad in front; very crowded, quite entire, white.