Blechnum hieronymi Holotype: ‘Nordöstl.-Neu-Guinea, Kaiserin-Augusta-Fluß-(Sepik-)Gebiet, Schraderberg, Gebirgswald’, epiphytic, 2000 m, Jun 1913, Ledermann 12217b (B) Isotype: Netherlands New Guinea, Bernhard Camp, Idenburg River, epiphytic in mossy forest; one plant climbing on dead trunk at 1800 m, Jan 1939, L.J. Brass 12287 (L) Netherlands New Guinea, Bernhard Camp, Idenburg River, epiphytic in mossy forest; one plant climbing on dead trunk at 1800 m, Jan 1939, L.J. Brass 12287 Netherlands New Guinea, Bernhard Camp, Idenburg River, epiphytic in mossy forest; one plant climbing on dead trunk at 1800 m, Jan 1939, L.J. Brass 12287 Holotype: Netherlands New Guinea, Bernhard Camp, Idenburg River, epiphytic in mossy forest; one plant climbing on dead trunk at 1800 m, Jan 1939, L.J. Brass 12287 (MICH) Unknown type category: mountain ridge near Doorman Summit, epiphytic, 1420 m, Oct 1920, Lam 1543 Holotype: ‘Nordöstl.-Neu-Guinea, Kaiserin-Augusta-Fluß-(Sepik-)Gebiet, Felsspitze (Sepik region)’, 1400-1500 m, Aug 1913, Ledermann 12459a (B) ‘Nordöstl.-Neu-Guinea, Kaiserin-Augusta-Fluß-(Sepik-)Gebiet, Felsspitze (Sepik region)’, 1400-1500 m, Aug 1913, Ledermann 12459a Isotype: ‘Nordöstl.-Neu-Guinea, Kaiserin-Augusta-Fluß-(Sepik-)Gebiet, Felsspitze (Sepik region)’, 1400-1500 m, Aug 1913, Ledermann 12459a (BM)