About Agaricus buckmacadooi Kerrigan
Agaricus buckmacadooi has a cap 8 to 20 centimeters in diameter, tannish brown and scaly. The cap starts out round or convex, and expands to become broadly convex or flat with growth. The stipe measures 7 to 15 centimeters long and 1 to 4 centimeters wide, and bears a ring. Its gills are free from the stipe, starting pale pink, turning pinkish tan, and becoming brown as the mushroom ages. The flesh of this mushroom stains yellow when disturbed. In habitat and ecology, Agaricus buckmacadooi grows in forests under Douglas fir, hemlock, and coastal redwood trees. As a saprophytic fungus, it obtains nutrients by breaking down decaying organic material.