Thelypteris simulata (Davenp.) Nieuwl. - Bog Fern, Massachusetts Fern
This species is also reported from unspecified localities in Mercer, Co., NJ; and Bronx, New York, and Westchester Cos., NY.
This species is possibly more common than the map would indicate. Due to its morphological similarity to T. palustris, it is possibly under-reported.