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SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 



CONTRIBUTIONS 



FROM THE 



United 



States 



National 



Herbarium 



Volume 



Part 7 



STUDIES OF TROPICAL AMERICAN 



FERNS-No. 1 



By WILLIAM R. MAXON 



% 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1908 



1 



