Reference:Rydberg1915a
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Verbatim text: Rydberg, P. A. 1915b. Tetraneuris. In: N. L. Britton et al., eds. 1905+. North American Flora.... 47+ vols. New York. Vol. 34, 100–108.
Author: Rydberg, P.A.
Year: 1915b
Title: Tetraneuris
Editor: Britton, N.L.
Book year: 1905
Book title: North American Flora
Book volume: 47+ vols
Volume: 34
Pages: 100–108