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
Stems
In the underside of the leaf
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.)
These are called "stomata".
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.)
Avicennia alba
the stomata
Stomata on the underside of the leaf control the passage of gases into and out of the leaf.