Verbatim text: Schaack, C. G. 1983. A Monographic Revision of the Genera Synthyris and Besseya (Scrophulariaceae). Ph.D. dissertation. University of Montana.
Author: Schaack, C.G.
Year: 1983
Title: A Monographic Revision of the Genera Synthyris and Besseya (Scrophulariaceae)