Class Psilotatae (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 class Psilotatae comprises two living genera of whisk ferns, Psilotum and Tmesipteris, which exhibit unique adaptations to their environments.
- Fossil records indicate that the class Psilotatae originated over 300 million years ago during the Devonian period.
- In the class Psilotatae, the vascular plants lack true roots and instead, obtain nutrients through a network of rhizoids.
- Stem anatomy in the class Psilotatae shows distinctive features, including a characteristic "Y"-shaped arrangement of xylem tissues.
- Phylogenetic analysis has confirmed that the class Psilotatae represents an ancient lineage within the vascular plants.