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单词 Psilopsida
释义 Noun: Psilopsida
  1. Whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs
    - class Psilopsida, Psilotatae, class Psilotatae

Type of: class

Part of: division Pteridophyta, Pteridophyta

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