English Dictionary

PSILOPSIDA

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 Dictionary entry overview: What does Psilopsida mean? 

PSILOPSIDA (noun)
  The noun PSILOPSIDA has 1 sense:

1. whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacsplay

  Familiarity information: PSILOPSIDA used as a noun is very rare.


 Dictionary entry details 


PSILOPSIDA (noun)


Sense 1

Meaning:

Whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs

Classified under:

Nouns denoting plants

Synonyms:

class Psilopsida; class Psilotatae; Psilopsida; Psilotatae

Hypernyms ("Psilopsida" is a kind of...):

class ((biology) a taxonomic group containing one or more orders)

Meronyms (members of "Psilopsida"):

order Psilotales; Psilotales (lower vascular plants having dichotomously branched sporophyte divided into aerial shoot and rhizome and lacking true roots)

Holonyms ("Psilopsida" is a member of...):

division Pteridophyta; Pteridophyta (containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta)


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