Blechnum revolutum Isotype: New Guinea, at foot of Doorman summit, terrestrial in sunny ravine, 3230 m, 24 Oct 1920, Lam 1708 (BM) Holotype: New Guinea, at foot of Doorman summit, terrestrial in sunny ravine, 3230 m, 24 Oct 1920, Lam 1708 (BO) New Guinea, at foot of Doorman summit, terrestrial in sunny ravine, 3230 m, 24 Oct 1920, Lam 1708 Holotype: SW slope Mt Albert Edward, Central Div., 3680 m, shrubby fringe forest, L.J. Brass 4318 (BM)