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pteridophyte

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pteridophyte
a member of the fern community and their allies.


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The fern is in a species of over 20,000 plants classified in the division of Pteridophyta or Filicophyta The term pteridophyte is traditionally used to describe the seedless vascular plants The fern is in a species of over 20,000 plants classified in the division of Pteridophyta or Filicophyta.
The study of pteridophyte evolutionary biology has undergone remarkable developments during the past 40 years.
The agency's latest Red Data Book listed 1,665, or 24%, of 7,000 kinds of spermatophyte and pteridophyte in Japan in the category, agency officials said, noting the figure was 20%, or 1,400 varieties, in the previous version released in 1997.
 
 
 
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