Definify.com
Webster 1913 Edition
Pteridophyta
‖
Pterˊi-doph′y-ta
,Noun.
pl.
[NL., from Gr. [GREEK], [GREEK], a fern + [GREEK] a plant.]
(Bot.)
A class of flowerless plants, embracing ferns, horsetails, club mosses, quillworts, and other like plants. See the Note under
– Cryptogamia
. Pter′i-do-phyteˊ
(#)
, Noun.
☞ This is a modern term, devised to replace the older ones acrogens and vascular Cryptogamia.
Definition 2024
Pteridophyta
Pteridophyta
Translingual
Proper noun
Pteridophyta
Usage notes
Thought to be paraphyletic.
The membership of classes Pteridopsida and Polypodiopsida is disputed, in particular as to which class the leptosporangiate ferns should belong. (See 
Leptosporangiate fern on Wikipedia.Wikipedia )
Synonyms
- Polypodiophyta, Pterophyta
Hyponyms
- (division): Equisetopsida (horsetails and scouring rushes), Gleicheniopsida (= Polypodiopsida), Marattiopsida (eusporangiate tree ferns), Osmundopsida (= Polypodiopsida), Polypodiopsida, Pteridopsida, Polypodiopsida, Psilotopsida (whisk ferns and adder's-tongue) (classes)