< Page:Ferns and Evergreens New England.djvu
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Key to Ferns (Filices).

  1. Stem not forked.
  2. (a)
    Simple leaf-like, feather-like parted, or twice parted
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plate I.
  3. (b)
    Feather-like divided
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plate II.
  4. (c)Feather-like divided and parted: 
  5. narrow
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plate II.
  6. less than 2 ft. long
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plate III.
  7. 2 ft. or more long
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plates IV., V.
  8. (d)
    Twice feather-like divided
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plates VI.
  9. (e)
    Twice divided and parted, at least the lower leaflets
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plates VI., VII., VIII.
  10. (f)
    Three times divided, at least the lower leaflets
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plate IX.
  11. Stem two-forked. Ferns
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plate X.
  12. Evergreens or Club-mosses
    ................................................................................................................................................................................................................................................................................................................................................................................................
    		Plate XI.
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