A New Erect Species of the Selaginella rupestris Group
Tryon, Rolla M. (Rolla Milton), 1916-2001
Article
1950
American fern journal
40
69--74
BioStor
English
[Washington, etc.] American Fern Society
BioStor: https://biostor.org/reference/218242 DOI: https://doi.org/10.2307/1544947