Quick Facts
- Also called:
- aecidium
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aecium
biology
Also known as: aecidium
aecium, a cluster-cup or fruiting body of certain rust fungi (phylum Basidiomycota, kingdom Fungi). Yellow to orange in colour, aecia develop after fertilization and bear one-celled spores (aeciospores, or aecidiospores). Aecia are usually found on lower leaf surfaces of plants.
This article was most recently revised and updated by Kara Rogers.

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