| 单词 | class psilopsida |
| 释义 | Class Psilopsida nnoun.plantwhisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs Synset:Psilopsida Psilotatae class Psilopsida class Psilotatae Member Holonyms:Pteridophyta division Pteridophyta Hypernyms:class Inherited Hypernyms:psilopsidaclasstaxonomic groupbiological groupgroupabstractionentity Member Meronyms:Psilotales order Psilotales |
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