class psilopsida   (TTS Sound)

The class_psilopsida has 1 Senses.

• psilopsida, class psilopsida, class psilotatae, psilotatae
• whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs
• ウイスクシダ