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Definition of Psilopsida
1. Noun. Whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs.
Exact synonyms: Class Psilopsida, Class Psilotatae, Psilotatae
Generic synonyms: Class
Group relationships: Division Pteridophyta, Pteridophyta
Member holonyms: Order Psilotales, Psilotales
Generic synonyms: Class
Group relationships: Division Pteridophyta, Pteridophyta
Member holonyms: Order Psilotales, Psilotales
Lexicographical Neighbors of Psilopsida
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