Psilopsida 1
noundomain: plant
Princeton WordNet [ver.3.1]
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EnglishDefinition
whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs
Hypernym
class 7
noun
(biology) a taxonomic group containing one or more orders
Member_meronym
Pteridophyta 1
noun
containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta
Psilotales 1
noun
lower vascular plants having dichotomously branched sporophyte divided into aerial shoot and rhizome and lacking true roots
EnglishMember_holonym
Pteridophyta 1
noun
containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta
Psilotales 1
noun
lower vascular plants having dichotomously branched sporophyte divided into aerial shoot and rhizome and lacking true roots
