Filicopsida

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Filicopsida A subdivision of the Pteridophyta, which comprises all living and extinct ferns. They arose in the Devonian from the Trimerophytina group of psilophytes and made an important contribution to Carboniferous floras. They are the most advanced, numerous, and varied of the pteridophytes. In most cases they have relatively large, much-divided leaves, and are still significant components of many different plant communities around the globe.

A Dictionary of Plant Sciences MICHAEL ALLABY

Filicopsida

views updated May 08 2018

Filicopsida See PTEROPSIDA.

A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY

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Filicopsida

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