A working key to the genera of North American Algae
By: by Frank Shipley Collins.  Pub. by the Charles Hyde Olmstead Fund.
Series: Tufts College studies,; vol. IV, no. 8.  Scientific series, no. 38
Published: 1918
Place of publication: Tufts College, Mass
Language: eng
Number of pages: 50
Subjects: Algae -- North America.
Notes: Cover title.