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🔷Ferns are unique amongst land plants in that they have 2 separate living structures in their reproductive cycle - the sporophyte and the gametophyte.
🔷The leafy fern plants we see in the bush that produce spores are sporophytes. When the spores are released by the sporangia, if they land in a hospitable environment, they can grow into a tiny plant - the gametophyte. This inconspicuous, short-lived plant has 2 sets of reproductive organs - the antheridia (male) and the archegonia (female). In suitably moist conditions, fertilisation takes place either on the same gametophyte or an adjacent one. Fertilisation gives rise to a new sporophyte.
🔷No other land plant has these 2 separate independent living stages. This is a unique characteristic of ferns.
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