On the use of the terms "subspecies" and "variety."
Clausen, Robert T. (Robert Theodore), 1911-1981
Article
1941
Rhodora
43
157--167
BioStor
[Cambridge, Mass., etc.], New England Botanical Club [etc.],
BioStor: https://biostor.org/reference/139607
In copyright. Digitized with the permission of the rights holder.
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http://creativecommons.org/licenses/by-nc-sa/3.0/
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