Verbatim text: Holttum, R. E. 1971. Studies in the family Thelypteridaceae III. A new system of genera in the Old World. Blumea 19: 17--52.
Author: Holttum, R.E.
Year: 1971
Title: Studies in the family Thelypteridaceae III. A new system of genera in the Old World
Journal: Blumea
Volume: 19
Pages: 17–52