A key to the Pteridophytes of Marin County, California
By: by John Thomas Howell
Publisher: Wasmann Biological Society
Published: 1941
Place of publication: San Francisco, Calif
Language: eng
Number of pages: 144
Subjects: Botany
Other titles: Wasmann collector. vol. 4, no. 4.
Notes: Offprint: Wasmann collector, vol. 4, no. 4.

"References": p. 144.