gymnosporangium : Idioms & Phrases
genus gymnosporangium
-
noun genus of fungi that produce galls on cedars and other conifers of genera Juniperus and Libocedrus and causes rust spots on apples and pears and other plants of family Rosaceae
Gymnosporangium.
WordNet
gymnosporangium juniperi-virginianae
-
noun rust fungus causing rust spots on apples and pears etc
cedar-apple rust; apple rust.