Spore bags, or sporangia, are typically located on the underside of a leaf to protect them from environmental factors such as direct sunlight and moisture loss, which can be detrimental to spore viability. This positioning also helps reduce the risk of predation by herbivores and allows for better dispersal of spores with the wind. Additionally, the underside of leaves often has a more humid microclimate, promoting spore development and release.
You can find it on the underside of a fern.
The spore containing sori of a fern are usually found on the underside of their leaves. In water ferns the spores are produced inside the sporocarps. (Novanet/Gradpoint, On the underside of a fern frond.)
the small openings on the underside of a leaf allow water to come in and replenish the leaf :D
The spore bags, also known as sporangia, are found on the underside of fern leaves, typically clustered in structures called sori. These sori are often arranged in a linear or circular pattern, depending on the fern species. The sporangia contain spores, which are reproductive cells that will eventually develop into new fern plants.
The spore containing sori of a fern are usually found on the underside of their leaves. In water ferns the spores are produced inside the sporocarps. (Novanet/Gradpoint, On the underside of a fern frond.)
Stems
In the underside of the leaf
The spore containing sori of a fern are usually found on the underside of their leaves. In water ferns the spores are produced inside the sporocarps. (Novanet/Gradpoint, On the underside of a fern frond.)
These are called "stomata".
Stomata on the underside of the leaf control the passage of gases into and out of the leaf.
Avicennia alba
the stomata