aecium
Noun (Biology, Mycology): A specialized fruiting body produced by certain rust fungi (order Pucciniales) during a stage of their life cycle. It typically contains chains of spores called aeciospores.
The term is used specifically in mycology (the study of fungi) to describe a structure in the complex reproductive cycle of rust fungi. * The fungus formed a cluster of aecia on the underside of the leaf. * Under the microscope, the chains of aeciospores within the aecium were visible.
- The plural form is aecia.
- The adjective form is aecial, used to describe structures or characteristics related to an aecium (e.g., aecial stage, aecial host).
- Aeciospore (noun): A spore produced within an aecium.
- Aecidium (noun): An older, sometimes synonymous term for aecium, or a specific type of aecium.
Fruiting body (in a specific, technical context), spermogonium (note: this is a different but related structure in the rust fungus life cycle).
This word has a single, highly specialized meaning in the field of mycology. It is not used in general English.
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fruiting body of some rust fungi bearing chains of aeciospores
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