The ferns of North America :
Colored figures and descriptions with synonymy and geographical distribution, of the ferns (including the Ophioglossaceœ) of the United States of America and the British North American possessions /
by Daniel Cady Eaton ; the drawings by J. H. Emerton and C. E. Faxon.

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Item Link Original Source
Full view   v.1-2 University of California
Full view   v.2 Harvard University