Holttum, R.E. (1973), Studies in the family Thelypteridaceae V. The genus Pneumatopteris Nakai. Blumea 21(2): 305 [comb. nov.]

basionym: Polypodium pennigerum G.Forst. legitimate

Anonymous (1977), Annual Report for 1976/77. Annual Report of the Botany Branch and the Queensland Herbarium: 10 [secondary reference]

Holttum, R.E. (1977), The family Thelypteridaceae in the Pacific and Australasia. Allertonia 1(3): 228-229 [secondary reference]

Thomas, M.B. & McDonald, W.J.F. (1987), Rare and threatened plants of Queensland: a checklist of geographically restricted, poorly collected and/or threatened vascular plant species Edn. 1: 12 [secondary reference]

Thomas, M.B. & McDonald, W.J.F. (1989), Rare and threatened plants of Queensland: a checklist of geographically restricted, poorly collected and/or threatened vascular plant species Edn. 2: 12 [secondary reference]

Wilson, Peter G. in Harden, G.J. (ed.) (1990), Thelypteridaceae. Flora of New South Wales 1: 52 [secondary reference]

nomenclatural synonym: Cyclosorus penniger (G.Forst.) Ching legitimate

Entwisle, T.J. in Walsh, N.G. & Entwisle, T.J. (ed.) (1994), Ferns and Allied Plants. Flora of Victoria Edn. 1, 2: 76, Fig. 16e-f [secondary reference]

nomenclatural synonym: Polypodium pennigerum G.Forst. legitimate nomenclatural synonym: Dryopteris pennigera (G.Forst.) C.Chr. legitimate nomenclatural synonym: Cyclosorus penniger (G.Forst.) Ching legitimate common name: Lime Fern [n/a]

Bostock, P.D. in McCarthy, P.M. (ed.) (1998), Thelypteridaceae. Flora of Australia 48: 358, Fig. 121, Map 326 APC [secondary reference]

nomenclatural synonym: Polypodium pennigerum G.Forst. legitimate nomenclatural synonym: Dryopteris pennigera (G.Forst.) C.Chr. legitimate nomenclatural synonym: Cyclosorus pennigerus Ching orth. var. nomenclatural synonym: Cyclosorus penniger (G.Forst.) Ching legitimate nomenclatural synonym: Thelypteris pennigera (G.Forst.) Allan legitimate

• APC Dist.: Qld, Vic, Tas

Wilson, Peter G. in Harden, G.J. (ed.) (2000), Thelypteridaceae. Flora of New South Wales Revised Edition 1: 52 [secondary reference]

nomenclatural synonym: Cyclosorus penniger (G.Forst.) Ching legitimate

Field, A.R. (2 January 2020), Classification and typification of Australian lycophytes and ferns based on Pteridophyte Phylogeny Group classification PPG I. Australian Systematic Botany 33(1): 70 [secondary reference]

nomenclatural synonym: Polypodium pennigerum G.Forst. legitimate

Almeida, T.E., Smith, A.R., Bostock, P.D., Bloesch, Z. & Field, A.R. (10 May 2023), ×Abacopterella altifrons (Thelypteridaceae), a new intergeneric fern hybrid from Australia. Austrobaileya 13: 50 [nomenclatural synonym]

nomenclatural synonym of: Pakau pennigera (G.Forst.) S.E.Fawc. & A.R.Sm. legitimate

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