Verbatim text: Alverson, E. R. 1989. Cryptogramma cascadensis, a new parsley fern from western North America. Amer. Fern J. 79: 95--102.
Author: Alverson, E.R.
Year: 1989
Title: Cryptogramma cascadensis, a new parsley fern from western North America
Journal: Amer. Fern J
Volume: 79
Pages: 95–102