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Agaricus augustus   (The Prince)
North America, Europe
Cap 10-20 cm diameter, stem 10-20 cm tall * 2-4 cm diameter

Agaricus augustus, also known as The Prince, is a tall, sometimes massive agaric that has orange-brown scales on the surface of the cap and on the stem below the ring. The surfaces of all parts stain yellow when handled or bruised.

Cap hemispherical during the so-called button stage, and then expands, becoming convex and finally flat. The cap cuticle is dry and densely covered with concentrically arranged, brown-coloured scales on a white to yellow background. The flesh is thick, firm, and white and may discolour yellow when bruised. Gills are not attached to stem, crowded and pallid at first, and turn pink then dark brown with maturity. Stem Solid; cylindrical to club-shaped. The surface is white. Ring membranous, with patches of brownish fibrils under.

Similar species include Agaricus subrefescens found in central and eastern U.S. Some poisonous species of the Amanita genus may also be mistaken as Agaricus augustus by inexperienced foragers.

Agaricus augustus on the First Nature Web site.
Agaricus augustus on the MushroomExpert.Com Web site.

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