Cortinarius orellanus, also know as Fool's Webcap, is a medium-sized agaric with a tawny brown, blunt umbonate cap. The gills are coloured as the stem. Grows solitary or in scattered trooping groups, with broad-leaf trees. The mushroom is lethally poisonous.
bell-shaped, with a sharply inrolled margin at first, expanding to convex or flat, with a broad, low, rounded hump. Surface minutely fibrillose, tending to develop fine, depressed scales. Brownish orange to reddish-orange. Margin thin, often flaring in age. Stem
cylindrical, becoming hollow. Surface fibrillose; moderate yellow to moderate orange with zones of reddish.
Many in Cortinarius and related genera.
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