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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

Encyclopedia: Psilopsida

Nearest

Psidium littorale longipes
psilocin
psilocine
psilocybin
psilocyn
psilomelane
Psilophytaceae
Psilophytales
psilophyte
psilophyton
Psilopsida
psilosis
Psilotaceae
Psilotales
Psilotatae
psilotsin
Psilotum
Psilotum nudum
Psithyrus
Psittacidae
Psittaciformes