|Wikispecies has information related to: Agaricus albo-flavidus|
Original description (English)
Pileus at first convex, with the margin incurved, then expanded, or slightly depressed, moist, smooth, even white, in exposed places becoming yellowish; gills close, narrow, thin, emarginate and decurrent with a tooth; stem whitish, equal, solid, striato-fibrillose, with a thin tough cuticle.
Ground in woods and open fields. Sandlake and North Elba. August.
Height 3-4 in.; breadth of pileus 2-3 in.; stem about 3 lines thick. The pileus is sometimes slightly and broadly umbonate.