class Psilotatae

Definitions of class Psilotatae
  1. noun
    whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs
    synonyms: Psilopsida, Psilotatae, class Psilopsida
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    type of:
    class
    (biology) a taxonomic group containing one or more orders
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