About Amanita brunnescens G.F.Atk.
Amanita brunnescens G.F.Atk. typically has a mostly brown cap that may have olive, grey, or red tones. When mature, the cap is usually 8 to 9 centimeters (3+1⁄4 to 3+1⁄2 inches) wide. The cap margins have no universal veil remnants. The cap starts as bell-shaped to convex, and becomes flat as it matures. The cap flesh is mostly white or cream, and bruises brown when damaged. Like other Amanita species, its gills are free from the stipe and white in color. The stipe is white, with a smooth basal bulb that splits distinctly to form a "cleft-foot". The lower half of the stipe stains reddish-brown, especially when handled, and the stipe averages around 9 cm tall. A partial veil is present; it is often white, and may develop brown coloration. There is no fully formed volva, but white to brownish volval remnants may be found if the fruiting body is carefully excavated. If an odor is detectable, it matches the scent of raw potatoes. You may need to cut a piece of the stipe to notice this faint scent. The spore print of this species is white. Spores measure (7.0-) 8.0–9.2 (-9.5) × (6.5-) 7.2–8.5 (-9.2) μm, are globose to subglobose, occasionally broadly ellipsoid, and amyloid. Clamps are absent from the bases of basidia. The edibility of Amanita brunnescens is unknown, and it may be poisonous.