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  • Pteridophyte
  • Hay, R.
  • Maxon, W. R.
  • Hay, R.
  • Maxon, W. R.
  • Central America - Neotropics
  • Guatemala
  • Central America - Neotropics
  • Guatemala
  • 1900s
  • NMNH - Botany Dept.
  • Pteridophyte
  • Pteridophyte
  • Polypodiales
  • Polypodiales
  • Pteridaceae
  • Pteridaceae
  • Pityrogramma dealbata
  • Pityrogramma dealbata