Sporangium
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A sporangium is an enclosure in which spores are formed. It can be composed of a single cell or can be multicellular. Virtually all plants, fungi, and many other groups form sporangia at some point in
Photomicrograph of a mature sporangium of an Absidia mold
Moss sporangia (the capsule and the stalk/seta make up the diploid asexual sporophyte generation)
Sporangia (clustered in sori) on a fern leaf
Equisetum arvense strobilus cut open to reveal sporangia
Strobilus
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A strobilus is a structure present on many land plant species consisting of sporangia-bearing structures densely aggregated along a stem. Strobili are often called cones, but some botanists restrict t
Sporangium
…the sporangia-bearing leaves are distinguished as either microsporophylls or megasporophylls. In seed plants, sporangia are typically located within strobili or flowers. Cycads form their microsporangia on microsporophylls which are aggregated into strobili. Megasporangia are formed into ovules, which are…
Strobili of Lycopodium
Liquid-preserved strobili of Lycopodium, showing reniform sporangia through translucent sporophylls
Micrograph of the strobilus of Lycopodium sp., showing spores borne in sporangia
Strobili of Selaginella