| Fern sporophytes
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Sori on two types of ferns (A is one sorus)
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Cross section of sorus on sporophyte leaf:
A - leaf B - indusium C - sporangium Note numerous sporangia with spores inside. |
Gametophyte (prothallus or prothallium)
On the right, close-up of gametophyte after
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Photo by Lee Sola |
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Gametophyte (B) at a later stage, with sporophyte embryo (A). |