English noun: class Psilotatae | |||
1. | class Psilotatae (plant) whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs | ||
Synonyms | class Psilopsida, Psilopsida, Psilotatae | ||
Broader (hypernym) | class | ||
Member holonym | order Psilotales, Psilotales | ||
Member meronym | division Pteridophyta, Pteridophyta | ||