Blechnum keysseri ‘Nova Guinea germanica in montibus Sattelberg montem superantibus’, 1400-1500 m, Apr 1913, I.C. Keysser 220p Holotype: ‘Nova Guinea germanica in montibus Sattelberg montem superantibus’, 1400-1500 m, Apr 1913, I.C. Keysser 220p Isotype: ‘Nova Guinea germanica in montibus Sattelberg montem superantibus’, 1400-1500 m, Apr 1913, I.C. Keysser 220p (BM) Isotype: Dutch Borneo, Mt Tibang, 1400-1700 m, Nov 1925, E. Mjöberg 398 (BM) Holotype: Dutch Borneo, Mt Tibang, 1400-1700 m, Nov 1925, E. Mjöberg 398 (BM) Isotype: Ledermann 11595 (B) Holotype: Ledermann 11595 (B) Holotype: Ledermann 11905 (B) Ledermann 11932a (BM) Ledermann 11932a (B) Ledermann 11932a 26 Apr 1913, Ledermann 11046 Holotype: 26 Apr 1913, Ledermann 11046 (B) Isotype: 26 Apr 1913, Ledermann 11046 (BM)