The Californian Species of Thelypteris
Morton, C. V. (Conrad Vernon) 1905-1972
Article
1958
American fern journal
48
Issue: 4
136--136
BioStor
English
[Washington, etc.] American Fern Society
BioStor: https://biostor.org/reference/218264 DOI: https://doi.org/10.2307/1545449