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Contribution No. 1710 from the Botany and Plant Pathology Division, Science Service, Canada Department of Agriculture, Ottawa, Ontario. Publication of this article was aided by a grant from the Department of Agriculture.
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Calder, J.A., Savile, D.B.O. Studies in saxifragaceae-II. Saxifraga sect. trachyphyllum in North America. Brittonia 11, 228–249 (1959). https://doi.org/10.2307/2805008
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DOI: https://doi.org/10.2307/2805008