7/23/2019 Introduction to Pteridophytes

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Introduction to

Pteridophytes

7/23/2019 Introduction to Pteridophytes

http://slidepdf.com/reader/full/introduction-to-pteridophytes 2/2

What are pteridophytes?

  Pteridophytes are vascular plants that reproduceand disperse via spores. Because they produceneither fowers nor seeds, they are reerred to as cryptogams.

 The group includes erns, horsetails, clumosses, spi!emosses .

 These do not orm a monophyletic group, ecause erns andhorsetails are more closely related to seed plants than

to lycophytes

 Thereore, pteridophytes are no longer considered to orm avalid ta"on, ut the term is still used as an inormal way to reerto erns