The Distribution of Dryopteris spinulosa and Its Relatives in Eastern Canada
Britton, Donald M. 1923-2012
Article
1976
American fern journal
66
69--74
BioStor
English
[Washington, etc.] American Fern Society
BioStor: https://biostor.org/reference/218483 DOI: https://doi.org/10.2307/1546522