Reference:Tryon1962a
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Verbatim text: Tryon, R. M. 1962. Taxonomic fern notes. II. Pityrogramma (including Trismeria) and Anogramma. Contr. Gray Herb. 189: 52--76.
Author: Tryon, R.M.
Year: 1962
Title: Taxonomic fern notes. II. Pityrogramma (including Trismeria) and Anogramma
Journal: Contr. Gray Herb
Volume: 189
Pages: 52–76