Botrychium virginianum and its forms.
Subtitle: Sphenoclea seylanica and Caperonia palustris in the southern United States.
By: By Ivar Tidestrom.
Series: Smithsonian institution.  United States national museum.  Contributions from the United States national herbarium.; v. 16, pt.13
Publisher: Govt. print. off.
Published: 1913
Place of publication: Washington
Language: eng
Number of pages: 307
Subjects: Botrychium virginianum.; Caperonia palustris.; Sphenoclea zeylanica.
Notes: "Bulletin of the United States national museum.  Issued December 29, 1913."