The Spinulose Ferns of Tim Pond, Maine
Clarkson, Edward Hale, 1866-1934
Article
1925
American fern journal
15
22--23
BioStor
English
[Washington, etc.] American Fern Society
BioStor: https://biostor.org/reference/218158 DOI: https://doi.org/10.2307/1543664