Verbatim text: Reeves, T. 1979. A Monograph of the Fern Genus Cheilanthes Subgenus Physapteris (Adiantaceae). Ph.D. dissertation. Arizona State University.
Author: Reeves, T.
Year: 1979
Title: A Monograph of the Fern Genus Cheilanthes Subgenus Physapteris (Adiantaceae)