Verbatim text: Rollins, R. C. 1963. The evolution and systematics of Leavenworthia (Cruciferae). Contr. Gray Herb. 192: 3–98.
Author: Rollins, R.C.
Year: 1963
Title: The evolution and systematics of Leavenworthia (Cruciferae)
Journal: Contr. Gray Herb
Volume: 192
Pages: 3–98