bird's-nest fungus

noun

any fungus of the order Nidulariales, having fruiting bodies that resemble a bird's nest containing eggs.

bird's-nest fungus

any fungus of the family Nidulariaceae , having a nestlike spore-producing body containing egglike spore-filled structures

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The species Cyathus, the "bird's-nest fungus," is quite common in some localities, and is interesting because of its peculiar form.

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