A field guide to the ferns and their related families of northeastern and central North America with a section on species also found in the British Isles and western Europe /
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Boston :
Houghton Mifflin,
1956.
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| Series: | Peterson field guide series ;
10. |
| Subjects: |