Verbatim text: Bacigalupi, R. 1931. A monograph of the genus Perezia, section Acourtia, with a provisional key to the section Euperezia. Contr. Gray Herb. 97: 1–81.
Author: Bacigalupi, R.
Year: 1931
Title: A monograph of the genus Perezia, section Acourtia, with a provisional key to the section Euperezia
Journal: Contr. Gray Herb
Volume: 97
Pages: 1–81