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  • Brainly User
2014-10-11T14:33:10+05:30
Fern belongs to pteridophytes and the four classes of pteridophytes are psilopsida , lycopsida, sphenopsida, and pteropsida
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2014-10-11T14:37:36+05:30
Four Classes Of Ferns Are As Follows:

1)Equisetopsida 
2)Psilotopsida
3)Marattiopsida
4)Polypodiopsida
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