The Tropical American Species of Drypteris Subgenus Eudryopteris
Christensen, Carl, 1872-1942
Article
1911
American fern journal
1
93--97
BioStor
English
[Washington, etc.] American Fern Society
BioStor: https://biostor.org/reference/218044 DOI: https://doi.org/10.2307/1543934