Studies of tropical American ferns. No. 4 / by William R. Maxon.
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| Corporate Authors: | , , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
G.P.O.,
1913.
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| Series: | Contributions from the United States National Herbarium ;
v. 17, pt. 2. |
| Subjects: |