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Definition of Class 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 Psilotatae, Psilopsida, 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
Other Resources:
