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Club Mosses, Ferns & Horsetails: the Seed-free Vascular Plants

Vascular Plants - a quick review

T w o u n r e l a t e d g r o u p s w i t h i n c r y p t o g a m s s e e d f r e e v a s c u l a plants – are recognized as phyla: r

  • 1.

    Lycopodiophyta : lycopods

  • 2.

    Polypodiophyta: ferns, horsetails, and whisk ferns

Why were the seed-free plants groupedtogether?

Why were the seed-free plants groupedtogether?

They produce free spores, the principal dispersal units, via meiosis. Spore: a reproductive cell, capable of developing into an adult without fusion with another cell.

Spores develop within a sporangium (pl. sporangia)

Vascular Plants - a quick review

Vascular Plants - a quick review

sporangium

spores

spores

1

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