Verbatim text: Windham, M. D. 1993. New taxa and nomenclatural changes in the North American fern flora. Contr. Univ. Michigan Herb. 19: 31--61.
Author: Windham, M.D.
Year: 1993
Title: New taxa and nomenclatural changes in the North American fern flora
Journal: Contr. Univ. Michigan Herb
Volume: 19
Pages: 31–61