Studies on the Gymnocarpium robertianum complex in North America
Sarvela, Jaakko Britton, Donald M. 1923-2012 Pryer, Kathleen M. (Kathleen Mary)
Article
1981
Rhodora
83
421--431
BioStor
English
[Cambridge, Mass., etc.] New England Botanical Club [etc.]
BioStor: https://biostor.org/reference/138107
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