Our Native Ferns

Illustrations from the book, Our Native Ferns and their Allies with Synoptical Descriptions of the American Pteridophyta North of Mexico by Lucien Marcus Underwood, Sixth Editiion, New York, Henry Holt and Company, 1900.

• 
  Frontspiece from Our Native Ferns and their Allies
• 
  Henry Holt and Company Logo from title page

Chapter III. Fructification in Ferns.

• 
  Fig. 1. Sorus of Polypodium falcatum
• 
  Fig. 2. Sporangium of Polypodium vulgare
• 
  Fig. 3. Sporangium of Trichomanes radicans
• 
  Fig. 4. Sporangium of Schizaea pusilla
• 
  Fig. 5. Segment of Adiantum
• 
  Fig 6. Pteris longifolia pinna segment
• 
  Fig 7. Struthiopteris spicant fertile pinna