Field / Identification Guide
Out of Print
By: F Thorne and L Thorne
80 pages, 93 photos, illus, charts
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About this book
Henry Potter, well-known Vermont naturalist, studied the hybrid ferns of the northeast USA. After his death, the Thornes continued his work, and this book presents the results of this combined effort.
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Field / Identification Guide
Out of Print
By: F Thorne and L Thorne
80 pages, 93 photos, illus, charts