uredo stage

noun

Mycology.

the summer stage in certain rust fungi when uredinia are produced.

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Example Sentences

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Cineraria and Senecio Disease.—Senecio pulcher, soon after its introduction into England, was attacked, and in some gardens completely destroyed, by a fungus named Puccinia glomerata, or rather the Uredo stage of this fungus with simple, not compound, spores.