Psilopsida (Noun)
Meaning
Whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs.
Classification
Nouns denoting plants.
Examples
- The whisk ferns belong to the class Psilopsida, a group of vascular plants that lack true roots and leaves.
- Psilopsida is a class of ancient vascular plants that have persisted since the Devonian period with minimal changes.
- The unique characteristics of Psilopsida include the absence of roots and the presence of rudimentary spore sacs.
- Psilopsida is often considered a link between the non-vascular plants and the more advanced vascular plants.
- The family Psilotaceae, which comprises the class Psilopsida, is commonly found in tropical and subtropical regions.