Reference:Tryon1956a
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Verbatim text: Tryon, R. M. 1956. A revision of the American species of Notholaena. Contr. Gray Herb. 179: 1--106.
Author: Tryon, R.M.
Year: 1956
Title: A revision of the American species of Notholaena
Journal: Contr. Gray Herb
Volume: 179
Pages: 1–106