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  • Pteridophyte
  • Williams, R. S.
  • Arequipa
  • Islay
  • Peru
  • South America - Neotropics
  • Arequipa
  • Islay
  • Peru
  • South America - Neotropics
  • 1900s
  • NMNH - Botany Dept.
  • Pteridophyte
  • Pteridophyte
  • Polypodiales
  • Polypodiales
  • Polypodiaceae
  • Polypodiaceae
  • Pleopeltis masafuerae (Phil.) de la Sota
  • Pleopeltis masafuerae (Phil.) de la Sota