æcidiospore

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• æcidium — noun /iːˈsɪdɪəm/ a) The cupulate fruiting body borne upon the mycelium of certain fungi commonly parasitic upon specimina of the Compositæ, Labiatæ, Leguminosæ, and Ranunculaceæ families b) A member of the form genus Aecidium. See Also: æcial,… …   Wiktionary