Dryopteris dubia Copel. in Leafl. Philipp. Bot. 1: 235. 1907
Dryopteris dubia in Leafl. Philipp. Bot. 1: 235. 1907
Isotype: Elmer 9016 (BO)
Type: Elmer 9016 (K)
Type: Elmer 9016 (L)
Type: Elmer 9016 (MICH)
Dryopteris dubia in Leafl. Philipp. Bot. 1: 235. 1907