A contribution to the life history of Silphium ...
Publisher: The University of Chicago press
Published: 1900
Place of publication: Chicago
Language: eng
Number of pages: 133
Subjects: Silphium (Genus) -- Development.
Notes: Bibliography: p. 127-128.
Thesis (Ph. D.)--University of Chicago.
"Reprinted from the Botanical gazette, February, 1900," vol. XXIX, no. 2.