Phegopteris (C. Presl) Fe.
Sven.: hultbräken.

Phegopteris connectilis

Phegopteris connectilis (Michx.) Watt.
Engl.: Beech Fern.
Deu.: Buchenfarn.
Suom.: korpi-imarre.
Sven.: hultbräken.
Bot. syn.: Dryopteris phegopteris (L.) C. Chr., Lastrea phegopteris (L.) Bory, Phegopteris polypodioides Fée, Thelypteris phegopteris (L.) Sloss.

Phegopteris polypodioides:

Phegopteris polypodioides Fe, Thelypteridaceae: See Phegopteris connectilis (Michx.) Watt.

I have no articles for this botanical term, but there might be some for the next level down (if found).