Pityrogramma triangularis (Kaulfuss) Maxon

Pityrogramma triangularis (Kaulfuss) Maxon is a synonym sensu FNA Ed. Comm., 1993 of:

Pentagramma triangularis (Kaulfuss) Yatskievych, Windham & E. Wollenweber subsp. triangularis, an accepted subspecies name sensu FNA Ed. Comm., 1993.