a saclike structure, the entire protoplasmic contents of which become converted into an indefinite number of spores. See also zoosporangium and zoospores. Tinsel flagellum - a flagellum that bears hairs (mastigonemes) on the flagellar membrane.
A general term used in fungi to describe a structure containing spores. It is used for the small fruitbodies (uniform in size) produced by slime moulds. It is also applied to the tiny fruitbodies of fungi such as the bread mould ( Rhizopus) in the division Zygomycota.
Structures on a plant that are responsible for producing and releasing spores. The powdery yellow-orange spots on the underside of a bracken leaf are sporangia, releasing haploid spores that will germinate into the gametophyte generation of the plant.
Plural: sporangia. The roughly spherical structures which produce spores on the surface of fern fronds. When the sporangia are mature they open to release the spores. Usually several to many sporangia are attached near one another in conspicuous clusters. These clusters of sporangia are known as sori.