class Psilopsida

Noun1.class Psilopsida - whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs
class, class Psilotatae, division Pteridophyta, order Psilotales, Psilopsida, Psilotales, Psilotatae, Pteridophyta
class Oligochaeta
class Onychophora
class Oomycetes
class Ophiuroidea
Class Oriented Ring Associated Language
class Osteichthyes
class Pauropoda
class Pelecypoda
class period
class Phaeophyceae
class Phasmidia
class Pinopsida
class Placodermi
class Plectomycetes
class Polychaeta
class Polyplacophora
-- class Psilopsida --
class Psilotatae
class Pteridospermopsida
class Pyrenomycetes
class Reptilia
class Rhodophyceae
class Sarcodina
class Scaphopoda
class Schizomycetes
class Scyphozoa
class Sphenopsida
class Sporozoa
class structure
class struggle
class Symphyla
class Tardigrada
class Taxopsida
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