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|Noun||1.||roof mushroom - a large genus of fungi belonging to the family Pluteaceae; the shape of the cap resembles a roof; often abundant early in the summer|
fungus genus - includes lichen genera
Pluteus aurantiorugosus - an agaric with a brilliant scarlet cap and a slender stalk
Pluteus magnus, sawdust mushroom - an edible agaric found in piles of hardwood sawdust; the caps are black and coarsely wrinkled