Notes with extensions of range of several North American orchids
Schweinfurth, Charles, 1890-1970
Article
1940
Rhodora
42
521--522
BioStor
[Cambridge, Mass., etc.], New England Botanical Club [etc.],
BioStor: https://biostor.org/reference/139657
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http://creativecommons.org/licenses/by-nc-sa/3.0/
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