Verbatim text: Porter, D. M. 1969. The genus Kallstroemia (Zygophyllaceae). Contr. Gray Herb. 198: 41–163.
Author: Porter, D.M.
Year: 1969
Title: The genus Kallstroemia (Zygophyllaceae)
Journal: Contr. Gray Herb
Volume: 198
Pages: 41–163