Large white mushroom w inrolled, cottony margin, acrid taste. Cap convex bcmg sunken to vase-shaped. Dry, smooth, aging scaly, staining brownish w yellwsh areas. LATEX, WHITE, UNCHANGING, STAINS BROWN. Odor pungent. Gills close-distant,attached,cream stains darker. Stipe, too. White to pale ochre-buff. On ground under hemlock or oak. Look-a-likes: L. piperatus has extremely close gills. L. vellerus lacks cottony roll of tissue. Large white depressed cap with strongly inrolled, wooly margin. Crowded white gills, somewhat decurrent. Latex acrid, white. Stipe is white, short, velvety. Mixed woods. Inedible. 018-001