Botany: General

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Filicopsida

A Dictionary of Plant Sciences | 1998 | | Copyright

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.

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MICHAEL ALLABY. "Filicopsida." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 29 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "Filicopsida." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 29, 2012). http://www.encyclopedia.com/doc/1O7-Filicopsida.html

MICHAEL ALLABY. "Filicopsida." A Dictionary of Plant Sciences. 1998. Retrieved May 29, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-Filicopsida.html

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Filicopsida

A Dictionary of Earth Sciences | 1999 | | Copyright

Filicopsida See PTEROPSIDA.

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AILSA ALLABY and MICHAEL ALLABY. "Filicopsida." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 29 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "Filicopsida." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 29, 2012). http://www.encyclopedia.com/doc/1O13-Filicopsida.html

AILSA ALLABY and MICHAEL ALLABY. "Filicopsida." A Dictionary of Earth Sciences. 1999. Retrieved May 29, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Filicopsida.html

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