Hymenophyllum flabellatum Labill. legitimate | sensu Council of Heads of Australasian Herbaria (2006), Australian Plant Census
Hymenophyllum flabellatum auct. non Labill.: Bentham, G. (1878) [fide Green, P.S. (1994)] , p.p. = Hymenophyllum howense Brownlie
Hymenophyllum flabellatum auct. non Labill.: Oliver, W.R.B. (1917) [fide Green, P.S. (1994)] = Hymenophyllum howense Brownlie