Dryopteris clintoniana var. slossoniae (Davenport) Burnham
Dryopteris clintoniana var. slossoniae (Davenport) Burnham is a synonym sensu Hassler & Schmidt, 2014+ of:
Dryopteris ×slossoniae (Davenport) Wherry ex Lellinger, an accepted species name sensu Hassler & Schmidt, 2014+.