Verbatim text: Solbrig, O. T. 1970. The phylogeny of Gutierrezia: An eclectic approach. Brittonia 22: 217–229.
Author: Solbrig, O.T.
Year: 1970
Title: The phylogeny of Gutierrezia: An eclectic approach
Journal: Brittonia
Volume: 22
Pages: 217–229