Reference:Hulten1959a
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Verbatim text: Hultén, E. 1959b. Studies in the genus Dryas. Svensk Bot. Tidskr. 53: 507–542.
Author: Hultén, E.
Year: 1959b
Title: Studies in the genus Dryas
Journal: Svensk Bot. Tidskr
Volume: 53
Pages: 507–542