A revision of the North American species of the section Boraphila Engler of the genus Saxifraga (Tourn) L.
By: by Arthur Monrad Johnson.
Published: 1923
Place of publication: [Minneapolis
Language: eng
Number of pages: 109
Subjects: Saxifraga
Notes: "Literature cited": p. [69]
Thesis (Ph. D.)--University of Minnesota, 1919.
Vita.
Descriptive letterpress on versos facing the plates.
"Reprinted from the Studies in the biological sciences, no. 4."