Whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs. Synonyms: class Psilopsida, class Psilotatae, Psilotatae.
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Words linked to "Psilopsida" : division Pteridophyta, Pteridophyta, class, Psilotales, order Psilotales |
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