Hart's-Tongue in Michigan Again
Hagenah, Dale J Morton, C. V. (Conrad Vernon) 1905-1972
Article
1956
American fern journal
46
157--158
BioStor
English
[Washington, etc.] American Fern Society
BioStor: https://biostor.org/reference/218259 DOI: https://doi.org/10.2307/1545697