Question

How are pteridophytes classified into sub groups?

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Answer 1

Answer:

But the discovery of pteridophytes (seed bearing ferns) broke down this artificial classification. In 1935, Sinnott introduced term Tracheophyta to include all vascular plants. Tracheophyta are further divided into four main groups : Psilopsida, Lycopsida, Sphenopsida and Pteropsida.

Answer 2

Answer:

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How are pteridophytes classified into sub groups?

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Pteridophytes occupy a transitional position between bryophytes and spermatophytes. Since a long time vascular plants are usually divided into pteridophyta and spermatophyta. Tracheophyta are further divided into four main groups : Psilopsida, Lycopsida, Sphenopsida and Pteropsida.

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