Reference:Keil1977b
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Verbatim text: Keil, D. J. 1977b. Chromosome studies in North and Central American species of Pectis L. (Compositae: Tageteae). Rhodora 79: 79–94.
Author: Keil, D.J.
Year: 1977b
Title: Chromosome studies in North and Central American species of Pectis L. (Compositae: Tageteae)
Journal: Rhodora
Volume: 79
Pages: 79–94