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  1. Seedless vascular plants include clubmosses and ferns. Figure below shows a typical fern life cycle. In the life cycle of a fern, the sporophyte generation is dominant. A mature sporophyte fern has the familiar leafy fronds. The undersides of the leaves are dotted with clusters of sporangia.

  2. In seedless vascular plants, the diploid sporophyte is the dominant phase of the lifecycle. The gametophyte is now an inconspicuous, but still independent, organism. Throughout plant evolution, there is an evident reversal of roles in the dominant phase of the lifecycle.

    • OpenStaxCollege
    • 2012
  3. In seedless vascular plants, the sporophyte is the dominant phase of the life cycle. The gametophyte is now less conspicuous, but still independent of the sporophyte. Seedless vascular plants still depend on water during fertilization, as the flagellated sperm must swim on a layer of moisture to reach the egg.

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