SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 56, NUMBER 23 



ON PSOMIOCARPA, A NEGLECTED 

 GENUS OE FERNS 



With Onk Plate 



BY 



Dr. H. CHRIST, Basel 



(Publication 2054) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



NOVEMBER 21, iQii 



