Studies of tropical American ferns, no.4
By: by William R. Maxon.
Contributors: Smithsonian Institution.; Unied States National Museum.
Series: Contributions from the United States National Herbarium -- v.17, pt. 2
Publisher: Government Printing Office
Published: 1913
Place of publication: Washington, DC
Language: eng
Number of pages: 179
Subjects: Ferns.
Notes: "Bulletin of the United States National Museum, Issued June 20, 1913"--T.p. verso.

At head of title: Smithsonian Institution. United States National Museum.

Includes bibliographical references and index.

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